== sanity test 398b: DIO and buffer IO race ============== 11:20:43 (1713540043) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB) copied, 1.00928 s, 49.9 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=27391: Fri Apr 19 11:20:56 2024 read: IOPS=136, BW=546KiB/s (560kB/s)(5992KiB/10965msec) clat (usec): min=40, max=175425, avg=3210.82, stdev=5444.91 lat (usec): min=40, max=175426, avg=3211.77, stdev=5445.29 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 76], | 30.00th=[ 1893], 40.00th=[ 2180], 50.00th=[ 2507], 60.00th=[ 3064], | 70.00th=[ 3785], 80.00th=[ 5080], 90.00th=[ 6456], 95.00th=[ 7635], | 99.00th=[ 11600], 99.50th=[ 16057], 99.90th=[ 51119], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 232, max= 768, per=24.45%, avg=534.00, stdev=97.69, samples=21 iops : min= 58, max= 192, avg=133.48, stdev=24.42, samples=21 write: IOPS=143, BW=574KiB/s (588kB/s)(6296KiB/10965msec) clat (usec): min=368, max=51134, avg=3837.55, stdev=3965.43 lat (usec): min=368, max=51135, avg=3838.44, stdev=3965.49 clat percentiles (usec): | 1.00th=[ 420], 5.00th=[ 453], 10.00th=[ 482], 20.00th=[ 553], | 30.00th=[ 775], 40.00th=[ 1860], 50.00th=[ 2966], 60.00th=[ 3785], | 70.00th=[ 4948], 80.00th=[ 6456], 90.00th=[ 8586], 95.00th=[11076], | 99.00th=[16188], 99.50th=[18744], 99.90th=[36963], 99.95th=[51119], | 99.99th=[51119] bw ( KiB/s): min= 288, max= 768, per=24.58%, avg=561.81, stdev=104.67, samples=21 iops : min= 72, max= 192, avg=140.43, stdev=26.15, samples=21 lat (usec) : 50=0.98%, 100=9.64%, 250=0.81%, 500=6.84%, 750=8.40% lat (usec) : 1000=2.38% lat (msec) : 2=8.50%, 4=29.52%, 10=28.87%, 20=3.65%, 50=0.33% lat (msec) : 100=0.07%, 250=0.03% cpu : usr=0.19%, sys=22.55%, ctx=5739, majf=0, minf=36 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27393: Fri Apr 19 11:20:56 2024 read: IOPS=135, BW=543KiB/s (556kB/s)(5940KiB/10938msec) clat (usec): min=37, max=31946, avg=3057.17, stdev=2690.79 lat (usec): min=38, max=31946, avg=3058.09, stdev=2691.04 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 93], | 30.00th=[ 1942], 40.00th=[ 2245], 50.00th=[ 2573], 60.00th=[ 3032], | 70.00th=[ 3720], 80.00th=[ 4752], 90.00th=[ 6587], 95.00th=[ 7767], | 99.00th=[11207], 99.50th=[13960], 99.90th=[22938], 99.95th=[31851], | 99.99th=[31851] bw ( KiB/s): min= 256, max= 728, per=24.78%, avg=541.10, stdev=105.07, samples=21 iops : min= 64, max= 182, avg=135.19, stdev=26.30, samples=21 write: IOPS=145, BW=580KiB/s (594kB/s)(6348KiB/10938msec) clat (usec): min=375, max=158290, avg=3957.69, stdev=5552.05 lat (usec): min=376, max=158292, avg=3959.91, stdev=5552.03 clat percentiles (usec): | 1.00th=[ 420], 5.00th=[ 465], 10.00th=[ 494], 20.00th=[ 570], | 30.00th=[ 783], 40.00th=[ 1795], 50.00th=[ 3032], 60.00th=[ 3884], | 70.00th=[ 4817], 80.00th=[ 6390], 90.00th=[ 8979], 95.00th=[ 11207], | 99.00th=[ 15795], 99.50th=[ 19268], 99.90th=[ 45351], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 304, max= 824, per=24.94%, avg=570.05, stdev=103.42, samples=21 iops : min= 76, max= 206, avg=142.43, stdev=25.88, samples=21 lat (usec) : 50=0.98%, 100=8.95%, 250=0.78%, 500=6.05%, 750=9.24% lat (usec) : 1000=2.54% lat (msec) : 2=8.11%, 4=30.73%, 10=27.80%, 20=4.49%, 50=0.29% lat (msec) : 250=0.03% cpu : usr=0.11%, sys=22.49%, ctx=5824, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27395: Fri Apr 19 11:20:56 2024 read: IOPS=137, BW=548KiB/s (562kB/s)(6028KiB/10993msec) clat (usec): min=37, max=25601, avg=3049.45, stdev=2831.81 lat (usec): min=37, max=25601, avg=3050.05, stdev=2831.96 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 71], | 30.00th=[ 1844], 40.00th=[ 2180], 50.00th=[ 2507], 60.00th=[ 2900], | 70.00th=[ 3687], 80.00th=[ 5080], 90.00th=[ 6652], 95.00th=[ 8029], | 99.00th=[11207], 99.50th=[13173], 99.90th=[25297], 99.95th=[25560], | 99.99th=[25560] bw ( KiB/s): min= 112, max= 712, per=24.03%, avg=524.76, stdev=126.07, samples=21 iops : min= 28, max= 178, avg=131.10, stdev=31.59, samples=21 write: IOPS=142, BW=569KiB/s (583kB/s)(6260KiB/10993msec) clat (usec): min=361, max=217437, avg=4015.40, stdev=6819.97 lat (usec): min=362, max=217439, avg=4016.29, stdev=6819.92 clat percentiles (usec): | 1.00th=[ 416], 5.00th=[ 461], 10.00th=[ 486], 20.00th=[ 562], | 30.00th=[ 799], 40.00th=[ 1811], 50.00th=[ 2966], 60.00th=[ 3851], | 70.00th=[ 4883], 80.00th=[ 6325], 90.00th=[ 8586], 95.00th=[ 11207], | 99.00th=[ 17957], 99.50th=[ 21627], 99.90th=[ 59507], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 152, max= 736, per=23.79%, avg=543.76, stdev=123.52, samples=21 iops : min= 38, max= 184, avg=135.86, stdev=30.89, samples=21 lat (usec) : 50=1.56%, 100=9.67%, 250=0.75%, 500=6.77%, 750=8.24% lat (usec) : 1000=1.95% lat (msec) : 2=8.76%, 4=29.85%, 10=27.99%, 20=3.94%, 50=0.46% lat (msec) : 100=0.03%, 250=0.03% cpu : usr=0.18%, sys=22.42%, ctx=5740, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27397: Fri Apr 19 11:20:56 2024 read: IOPS=138, BW=555KiB/s (568kB/s)(6052KiB/10903msec) clat (usec): min=38, max=163569, avg=3072.69, stdev=4786.06 lat (usec): min=38, max=163570, avg=3073.70, stdev=4786.03 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 99], | 30.00th=[ 1942], 40.00th=[ 2245], 50.00th=[ 2573], 60.00th=[ 2966], | 70.00th=[ 3621], 80.00th=[ 4621], 90.00th=[ 6194], 95.00th=[ 7504], | 99.00th=[ 10290], 99.50th=[ 11863], 99.90th=[ 23462], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 288, max= 816, per=25.23%, avg=551.10, stdev=102.17, samples=21 iops : min= 72, max= 204, avg=137.71, stdev=25.55, samples=21 write: IOPS=142, BW=572KiB/s (586kB/s)(6236KiB/10903msec) clat (usec): min=366, max=43848, avg=3937.60, stdev=3979.33 lat (usec): min=367, max=43849, avg=3938.39, stdev=3979.26 clat percentiles (usec): | 1.00th=[ 424], 5.00th=[ 465], 10.00th=[ 498], 20.00th=[ 586], | 30.00th=[ 848], 40.00th=[ 1958], 50.00th=[ 3032], 60.00th=[ 3982], | 70.00th=[ 5014], 80.00th=[ 6521], 90.00th=[ 8979], 95.00th=[11600], | 99.00th=[17171], 99.50th=[20055], 99.90th=[43254], 99.95th=[43779], | 99.99th=[43779] bw ( KiB/s): min= 368, max= 776, per=24.93%, avg=569.81, stdev=102.13, samples=21 iops : min= 92, max= 194, avg=142.38, stdev=25.83, samples=21 lat (usec) : 50=0.91%, 100=8.95%, 250=0.52%, 500=5.27%, 750=8.92% lat (usec) : 1000=2.54% lat (msec) : 2=9.18%, 4=31.09%, 10=27.90%, 20=4.39%, 50=0.29% lat (msec) : 250=0.03% cpu : usr=0.17%, sys=22.37%, ctx=5772, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2184KiB/s (2237kB/s), 543KiB/s-555KiB/s (556kB/s-568kB/s), io=23.4MiB (24.6MB), run=10903-10993msec WRITE: bw=2287KiB/s (2342kB/s), 569KiB/s-580KiB/s (583kB/s-594kB/s), io=24.6MiB (25.7MB), run=10903-10993msec rand-rw: (groupid=0, jobs=1): err= 0: pid=27390: Fri Apr 19 11:21:22 2024 read: IOPS=40, BW=162KiB/s (166kB/s)(5992KiB/36913msec) clat (usec): min=1392, max=204094, avg=3620.84, stdev=5909.17 lat (usec): min=1392, max=204096, avg=3621.43, stdev=5909.20 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1631], 10.00th=[ 1713], 20.00th=[ 1844], | 30.00th=[ 1991], 40.00th=[ 2343], 50.00th=[ 3064], 60.00th=[ 3326], | 70.00th=[ 3556], 80.00th=[ 3982], 90.00th=[ 5997], 95.00th=[ 8291], | 99.00th=[ 13698], 99.50th=[ 17433], 99.90th=[ 45876], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 48, max= 272, per=25.09%, avg=162.33, stdev=61.53, samples=73 iops : min= 12, max= 68, avg=40.52, stdev=15.38, samples=73 write: IOPS=42, BW=171KiB/s (175kB/s)(6296KiB/36913msec) clat (usec): min=10081, max=53575, avg=19932.05, stdev=6960.58 lat (usec): min=10081, max=53576, avg=19932.78, stdev=6960.59 clat percentiles (usec): | 1.00th=[11076], 5.00th=[11994], 10.00th=[12911], 20.00th=[14091], | 30.00th=[15401], 40.00th=[17171], 50.00th=[18482], 60.00th=[20317], | 70.00th=[21627], 80.00th=[23462], 90.00th=[29492], 95.00th=[34866], | 99.00th=[43254], 99.50th=[46400], 99.90th=[51119], 99.95th=[53740], | 99.99th=[53740] bw ( KiB/s): min= 40, max= 239, per=25.09%, avg=170.11, stdev=45.02, samples=73 iops : min= 10, max= 59, avg=42.47, stdev=11.25, samples=73 lat (msec) : 2=15.10%, 4=24.15%, 10=7.94%, 20=31.05%, 50=21.61% lat (msec) : 100=0.10%, 250=0.03% cpu : usr=0.07%, sys=4.30%, ctx=3761, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27392: Fri Apr 19 11:21:22 2024 read: IOPS=40, BW=160KiB/s (164kB/s)(5940KiB/37057msec) clat (usec): min=1363, max=165965, avg=3581.51, stdev=5078.64 lat (usec): min=1364, max=165968, avg=3582.12, stdev=5078.69 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1631], 10.00th=[ 1713], 20.00th=[ 1827], | 30.00th=[ 1991], 40.00th=[ 2311], 50.00th=[ 3032], 60.00th=[ 3294], | 70.00th=[ 3523], 80.00th=[ 3916], 90.00th=[ 5604], 95.00th=[ 8356], | 99.00th=[ 15008], 99.50th=[ 20841], 99.90th=[ 43254], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 16, max= 296, per=24.81%, avg=160.49, stdev=62.46, samples=73 iops : min= 4, max= 74, avg=40.08, stdev=15.63, samples=73 write: IOPS=42, BW=171KiB/s (175kB/s)(6348KiB/37057msec) clat (usec): min=10102, max=75402, avg=19928.18, stdev=7059.59 lat (usec): min=10103, max=75403, avg=19928.91, stdev=7059.61 clat percentiles (usec): | 1.00th=[11207], 5.00th=[12125], 10.00th=[12911], 20.00th=[14091], | 30.00th=[15401], 40.00th=[17171], 50.00th=[18744], 60.00th=[20055], | 70.00th=[21627], 80.00th=[23462], 90.00th=[30016], 95.00th=[34341], | 99.00th=[43254], 99.50th=[45876], 99.90th=[66323], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 48, max= 231, per=25.17%, avg=170.68, stdev=44.00, samples=73 iops : min= 12, max= 57, avg=42.63, stdev=11.01, samples=73 lat (msec) : 2=14.71%, 4=24.80%, 10=7.19%, 20=31.93%, 50=21.22% lat (msec) : 100=0.10%, 250=0.03% cpu : usr=0.09%, sys=4.27%, ctx=3770, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27394: Fri Apr 19 11:21:22 2024 read: IOPS=40, BW=163KiB/s (167kB/s)(6028KiB/37048msec) clat (usec): min=1319, max=45750, avg=3635.64, stdev=3160.18 lat (usec): min=1319, max=45750, avg=3636.29, stdev=3160.20 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1631], 10.00th=[ 1729], 20.00th=[ 1844], | 30.00th=[ 2008], 40.00th=[ 2311], 50.00th=[ 3064], 60.00th=[ 3326], | 70.00th=[ 3589], 80.00th=[ 4047], 90.00th=[ 6390], 95.00th=[ 9241], | 99.00th=[15270], 99.50th=[18744], 99.90th=[41681], 99.95th=[45876], | 99.99th=[45876] bw ( KiB/s): min= 32, max= 336, per=25.17%, avg=162.86, stdev=59.16, samples=73 iops : min= 8, max= 84, avg=40.64, stdev=14.80, samples=73 write: IOPS=42, BW=169KiB/s (173kB/s)(6260KiB/37048msec) clat (msec): min=10, max=212, avg=20.10, stdev= 8.60 lat (msec): min=10, max=212, avg=20.10, stdev= 8.60 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 13], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 19], 60.00th=[ 21], | 70.00th=[ 22], 80.00th=[ 24], 90.00th=[ 30], 95.00th=[ 34], | 99.00th=[ 44], 99.50th=[ 49], 99.90th=[ 72], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 32, max= 216, per=24.85%, avg=168.45, stdev=46.51, samples=73 iops : min= 8, max= 54, avg=42.04, stdev=11.64, samples=73 lat (msec) : 2=14.49%, 4=24.45%, 10=8.04%, 20=31.93%, 50=20.90% lat (msec) : 100=0.16%, 250=0.03% cpu : usr=0.09%, sys=4.34%, ctx=3743, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27396: Fri Apr 19 11:21:22 2024 read: IOPS=41, BW=165KiB/s (169kB/s)(6052KiB/36682msec) clat (usec): min=1245, max=43183, avg=3479.19, stdev=2751.56 lat (usec): min=1246, max=43184, avg=3479.79, stdev=2751.57 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1631], 10.00th=[ 1713], 20.00th=[ 1827], | 30.00th=[ 1975], 40.00th=[ 2311], 50.00th=[ 2999], 60.00th=[ 3294], | 70.00th=[ 3523], 80.00th=[ 3916], 90.00th=[ 6063], 95.00th=[ 8586], | 99.00th=[13829], 99.50th=[15926], 99.90th=[30802], 99.95th=[43254], | 99.99th=[43254] bw ( KiB/s): min= 32, max= 280, per=25.53%, avg=165.18, stdev=60.08, samples=73 iops : min= 8, max= 70, avg=41.23, stdev=15.03, samples=73 write: IOPS=42, BW=170KiB/s (174kB/s)(6236KiB/36682msec) clat (msec): min=10, max=184, avg=20.08, stdev= 8.43 lat (msec): min=10, max=184, avg=20.08, stdev= 8.43 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 21], | 70.00th=[ 22], 80.00th=[ 24], 90.00th=[ 30], 95.00th=[ 35], | 99.00th=[ 46], 99.50th=[ 50], 99.90th=[ 75], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 48, max= 224, per=25.04%, avg=169.78, stdev=45.12, samples=73 iops : min= 12, max= 56, avg=42.38, stdev=11.28, samples=73 lat (msec) : 2=15.49%, 4=24.58%, 10=7.62%, 20=31.54%, 50=20.54% lat (msec) : 100=0.20%, 250=0.03% cpu : usr=0.09%, sys=4.35%, ctx=3792, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=648KiB/s (664kB/s), 160KiB/s-165KiB/s (164kB/s-169kB/s), io=23.4MiB (24.6MB), run=36682-37057msec WRITE: bw=678KiB/s (695kB/s), 169KiB/s-171KiB/s (173kB/s-175kB/s), io=24.6MiB (25.7MB), run=36682-37057msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=27437: Fri Apr 19 11:21:27 2024 read: IOPS=89, BW=1426KiB/s (1460kB/s)(5920KiB/4151msec) clat (usec): min=48, max=33366, avg=7977.37, stdev=5562.14 lat (usec): min=48, max=33366, avg=7977.98, stdev=5562.20 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 68], 20.00th=[ 76], | 30.00th=[ 7046], 40.00th=[ 8291], 50.00th=[ 9241], 60.00th=[10028], | 70.00th=[10814], 80.00th=[12256], 90.00th=[13304], 95.00th=[14877], | 99.00th=[24511], 99.50th=[27132], 99.90th=[33424], 99.95th=[33424], | 99.99th=[33424] bw ( KiB/s): min= 1088, max= 1564, per=23.63%, avg=1363.50, stdev=164.19, samples=8 iops : min= 68, max= 97, avg=85.12, stdev=10.13, samples=8 write: IOPS=95, BW=1534KiB/s (1571kB/s)(6368KiB/4151msec) clat (usec): min=574, max=43977, avg=2993.46, stdev=3783.89 lat (usec): min=575, max=43979, avg=2996.41, stdev=3783.90 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 652], 10.00th=[ 685], 20.00th=[ 725], | 30.00th=[ 775], 40.00th=[ 840], 50.00th=[ 1450], 60.00th=[ 2737], | 70.00th=[ 3359], 80.00th=[ 5080], 90.00th=[ 6849], 95.00th=[ 8225], | 99.00th=[17695], 99.50th=[29492], 99.90th=[43779], 99.95th=[43779], | 99.99th=[43779] bw ( KiB/s): min= 1024, max= 1856, per=24.44%, avg=1483.50, stdev=280.21, samples=8 iops : min= 64, max= 116, avg=92.62, stdev=17.46, samples=8 lat (usec) : 50=0.39%, 100=11.85%, 250=0.39%, 500=0.26%, 750=13.15% lat (usec) : 1000=10.42% lat (msec) : 2=3.26%, 4=12.50%, 10=26.43%, 20=20.31%, 50=1.04% cpu : usr=0.12%, sys=20.80%, ctx=1816, majf=0, minf=35 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27439: Fri Apr 19 11:21:27 2024 read: IOPS=87, BW=1403KiB/s (1437kB/s)(5744KiB/4094msec) clat (usec): min=45, max=27166, avg=8396.17, stdev=5236.69 lat (usec): min=45, max=27167, avg=8399.24, stdev=5236.56 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 7635], 40.00th=[ 8848], 50.00th=[ 9634], 60.00th=[10421], | 70.00th=[11076], 80.00th=[12125], 90.00th=[13698], 95.00th=[15533], | 99.00th=[20055], 99.50th=[21103], 99.90th=[27132], 99.95th=[27132], | 99.99th=[27132] bw ( KiB/s): min= 1021, max= 1696, per=24.33%, avg=1403.62, stdev=196.93, samples=8 iops : min= 63, max= 106, avg=87.62, stdev=12.53, samples=8 write: IOPS=99, BW=1598KiB/s (1637kB/s)(6544KiB/4094msec) clat (usec): min=579, max=57461, avg=2620.79, stdev=4038.68 lat (usec): min=580, max=57462, avg=2621.65, stdev=4038.69 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 660], 10.00th=[ 685], 20.00th=[ 734], | 30.00th=[ 775], 40.00th=[ 832], 50.00th=[ 979], 60.00th=[ 2114], | 70.00th=[ 2900], 80.00th=[ 3818], 90.00th=[ 5932], 95.00th=[ 7373], | 99.00th=[18220], 99.50th=[20317], 99.90th=[57410], 99.95th=[57410], | 99.99th=[57410] bw ( KiB/s): min= 1248, max= 2144, per=26.16%, avg=1587.62, stdev=333.72, samples=8 iops : min= 78, max= 134, avg=99.12, stdev=20.95, samples=8 lat (usec) : 50=0.65%, 100=9.51%, 250=0.52%, 500=0.13%, 750=13.02% lat (usec) : 1000=14.19% lat (msec) : 2=4.56%, 4=11.59%, 10=23.31%, 20=21.74%, 50=0.65% lat (msec) : 100=0.13% cpu : usr=0.10%, sys=21.04%, ctx=1856, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27441: Fri Apr 19 11:21:27 2024 read: IOPS=94, BW=1514KiB/s (1551kB/s)(6256KiB/4131msec) clat (usec): min=45, max=23275, avg=7956.68, stdev=5301.71 lat (usec): min=45, max=23276, avg=7957.36, stdev=5301.71 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 69], 20.00th=[ 80], | 30.00th=[ 7177], 40.00th=[ 8586], 50.00th=[ 9372], 60.00th=[10028], | 70.00th=[11076], 80.00th=[12256], 90.00th=[13698], 95.00th=[15008], | 99.00th=[19006], 99.50th=[20841], 99.90th=[23200], 99.95th=[23200], | 99.99th=[23200] bw ( KiB/s): min= 1088, max= 2011, per=26.19%, avg=1511.38, stdev=298.87, samples=8 iops : min= 68, max= 125, avg=94.38, stdev=18.52, samples=8 write: IOPS=91, BW=1460KiB/s (1495kB/s)(6032KiB/4131msec) clat (usec): min=616, max=51009, avg=2683.83, stdev=3485.70 lat (usec): min=616, max=51010, avg=2684.74, stdev=3485.69 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 676], 10.00th=[ 701], 20.00th=[ 750], | 30.00th=[ 791], 40.00th=[ 857], 50.00th=[ 1123], 60.00th=[ 2474], | 70.00th=[ 3195], 80.00th=[ 4293], 90.00th=[ 6259], 95.00th=[ 7898], | 99.00th=[10552], 99.50th=[12780], 99.90th=[51119], 99.95th=[51119], | 99.99th=[51119] bw ( KiB/s): min= 1120, max= 1888, per=23.39%, avg=1419.62, stdev=288.29, samples=8 iops : min= 70, max= 118, avg=88.62, stdev=18.04, samples=8 lat (usec) : 50=0.52%, 100=11.33%, 250=1.82%, 750=10.03%, 1000=13.02% lat (msec) : 2=4.04%, 4=11.72%, 10=25.52%, 20=21.61%, 50=0.26% lat (msec) : 100=0.13% cpu : usr=0.15%, sys=20.99%, ctx=1889, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27443: Fri Apr 19 11:21:27 2024 read: IOPS=91, BW=1469KiB/s (1504kB/s)(6032KiB/4106msec) clat (usec): min=45, max=41597, avg=7970.89, stdev=5676.79 lat (usec): min=46, max=41598, avg=7971.51, stdev=5676.86 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 77], | 30.00th=[ 7242], 40.00th=[ 8094], 50.00th=[ 8979], 60.00th=[ 9765], | 70.00th=[10421], 80.00th=[11863], 90.00th=[13829], 95.00th=[15401], | 99.00th=[19792], 99.50th=[40109], 99.90th=[41681], 99.95th=[41681], | 99.99th=[41681] bw ( KiB/s): min= 1088, max= 1632, per=24.88%, avg=1435.62, stdev=219.29, samples=8 iops : min= 68, max= 102, avg=89.62, stdev=13.88, samples=8 write: IOPS=95, BW=1524KiB/s (1560kB/s)(6256KiB/4106msec) clat (usec): min=598, max=49751, avg=2797.02, stdev=3947.88 lat (usec): min=599, max=49752, avg=2797.92, stdev=3947.87 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 668], 10.00th=[ 693], 20.00th=[ 725], | 30.00th=[ 766], 40.00th=[ 824], 50.00th=[ 963], 60.00th=[ 2442], | 70.00th=[ 3163], 80.00th=[ 4424], 90.00th=[ 6325], 95.00th=[ 8356], | 99.00th=[16909], 99.50th=[29230], 99.90th=[49546], 99.95th=[49546], | 99.99th=[49546] bw ( KiB/s): min= 1184, max= 1984, per=24.77%, avg=1503.62, stdev=254.96, samples=8 iops : min= 74, max= 124, avg=93.88, stdev=15.97, samples=8 lat (usec) : 50=0.78%, 100=10.68%, 250=1.04%, 750=13.02%, 1000=13.41% lat (msec) : 2=3.12%, 4=10.16%, 10=28.78%, 20=18.23%, 50=0.78% cpu : usr=0.10%, sys=20.90%, ctx=1818, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5770KiB/s (5909kB/s), 1403KiB/s-1514KiB/s (1437kB/s-1551kB/s), io=23.4MiB (24.5MB), run=4094-4151msec WRITE: bw=6071KiB/s (6217kB/s), 1460KiB/s-1598KiB/s (1495kB/s-1637kB/s), io=24.6MiB (25.8MB), run=4094-4151msec rand-rw: (groupid=0, jobs=1): err= 0: pid=27438: Fri Apr 19 11:21:33 2024 read: IOPS=36, BW=590KiB/s (605kB/s)(5920KiB/10026msec) clat (usec): min=1705, max=35413, avg=4385.26, stdev=3624.19 lat (usec): min=1705, max=35414, avg=4385.85, stdev=3624.21 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 1991], 10.00th=[ 2057], 20.00th=[ 2245], | 30.00th=[ 2409], 40.00th=[ 2606], 50.00th=[ 2999], 60.00th=[ 3818], | 70.00th=[ 5014], 80.00th=[ 5735], 90.00th=[ 7242], 95.00th=[10028], | 99.00th=[22414], 99.50th=[24773], 99.90th=[35390], 99.95th=[35390], | 99.99th=[35390] bw ( KiB/s): min= 384, max= 832, per=24.83%, avg=591.80, stdev=165.53, samples=20 iops : min= 24, max= 52, avg=36.90, stdev=10.35, samples=20 write: IOPS=39, BW=635KiB/s (650kB/s)(6368KiB/10026msec) clat (usec): min=10946, max=52507, avg=21097.54, stdev=6864.84 lat (usec): min=10947, max=52509, avg=21098.78, stdev=6864.86 clat percentiles (usec): | 1.00th=[11469], 5.00th=[12518], 10.00th=[13304], 20.00th=[15008], | 30.00th=[16909], 40.00th=[18744], 50.00th=[20317], 60.00th=[21627], | 70.00th=[23462], 80.00th=[25560], 90.00th=[30016], 95.00th=[34341], | 99.00th=[44303], 99.50th=[50070], 99.90th=[52691], 99.95th=[52691], | 99.99th=[52691] bw ( KiB/s): min= 384, max= 832, per=25.33%, avg=634.90, stdev=157.28, samples=20 iops : min= 24, max= 52, avg=39.60, stdev= 9.77, samples=20 lat (msec) : 2=3.39%, 4=26.43%, 10=16.02%, 20=26.95%, 50=27.08% lat (msec) : 100=0.13% cpu : usr=0.10%, sys=5.10%, ctx=989, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27440: Fri Apr 19 11:21:33 2024 read: IOPS=35, BW=572KiB/s (585kB/s)(5744KiB/10049msec) clat (usec): min=1729, max=28543, avg=4042.65, stdev=3291.81 lat (usec): min=1729, max=28544, avg=4043.23, stdev=3291.81 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 1926], 10.00th=[ 2008], 20.00th=[ 2147], | 30.00th=[ 2245], 40.00th=[ 2409], 50.00th=[ 2638], 60.00th=[ 3163], | 70.00th=[ 4178], 80.00th=[ 5407], 90.00th=[ 7504], 95.00th=[10683], | 99.00th=[19268], 99.50th=[20841], 99.90th=[28443], 99.95th=[28443], | 99.99th=[28443] bw ( KiB/s): min= 192, max= 1024, per=23.83%, avg=567.85, stdev=222.95, samples=20 iops : min= 12, max= 64, avg=35.40, stdev=14.01, samples=20 write: IOPS=40, BW=651KiB/s (667kB/s)(6544KiB/10049msec) clat (usec): min=10785, max=95458, avg=21001.86, stdev=8081.51 lat (usec): min=10786, max=95459, avg=21003.07, stdev=8081.56 clat percentiles (usec): | 1.00th=[11600], 5.00th=[12387], 10.00th=[13435], 20.00th=[14746], | 30.00th=[15926], 40.00th=[17957], 50.00th=[19792], 60.00th=[21103], | 70.00th=[22676], 80.00th=[25822], 90.00th=[31065], 95.00th=[35390], | 99.00th=[45876], 99.50th=[47449], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 384, max= 832, per=25.90%, avg=649.40, stdev=158.48, samples=20 iops : min= 24, max= 52, avg=40.50, stdev= 9.90, samples=20 lat (msec) : 2=4.43%, 4=27.73%, 10=12.11%, 20=29.43%, 50=26.04% lat (msec) : 100=0.26% cpu : usr=0.05%, sys=5.06%, ctx=949, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27442: Fri Apr 19 11:21:33 2024 read: IOPS=39, BW=640KiB/s (655kB/s)(6256KiB/9778msec) clat (usec): min=1574, max=23180, avg=4056.84, stdev=3262.36 lat (usec): min=1574, max=23180, avg=4057.46, stdev=3262.36 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1860], 10.00th=[ 1991], 20.00th=[ 2147], | 30.00th=[ 2245], 40.00th=[ 2442], 50.00th=[ 2737], 60.00th=[ 3228], | 70.00th=[ 4228], 80.00th=[ 5342], 90.00th=[ 6718], 95.00th=[10159], | 99.00th=[19792], 99.50th=[20841], 99.90th=[23200], 99.95th=[23200], | 99.99th=[23200] bw ( KiB/s): min= 320, max= 1248, per=26.99%, avg=643.21, stdev=263.61, samples=19 iops : min= 20, max= 78, avg=40.11, stdev=16.49, samples=19 write: IOPS=38, BW=617KiB/s (632kB/s)(6032KiB/9778msec) clat (usec): min=10572, max=51466, avg=21705.60, stdev=7488.13 lat (usec): min=10574, max=51467, avg=21706.86, stdev=7488.24 clat percentiles (usec): | 1.00th=[11863], 5.00th=[12911], 10.00th=[13960], 20.00th=[15270], | 30.00th=[16909], 40.00th=[18744], 50.00th=[20317], 60.00th=[21627], | 70.00th=[23725], 80.00th=[27132], 90.00th=[32375], 95.00th=[36439], | 99.00th=[45876], 99.50th=[49546], 99.90th=[51643], 99.95th=[51643], | 99.99th=[51643] bw ( KiB/s): min= 416, max= 864, per=24.38%, avg=611.16, stdev=155.16, samples=19 iops : min= 26, max= 54, avg=38.11, stdev= 9.65, samples=19 lat (msec) : 2=5.47%, 4=29.43%, 10=13.41%, 20=25.26%, 50=26.30% lat (msec) : 100=0.13% cpu : usr=0.11%, sys=5.22%, ctx=973, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27444: Fri Apr 19 11:21:33 2024 read: IOPS=38, BW=610KiB/s (625kB/s)(6032KiB/9890msec) clat (usec): min=1767, max=28312, avg=4346.63, stdev=3800.34 lat (usec): min=1768, max=28312, avg=4347.40, stdev=3800.44 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 1991], 10.00th=[ 2040], 20.00th=[ 2180], | 30.00th=[ 2311], 40.00th=[ 2507], 50.00th=[ 2835], 60.00th=[ 3523], | 70.00th=[ 4555], 80.00th=[ 5407], 90.00th=[ 7767], 95.00th=[11600], | 99.00th=[21627], 99.50th=[27919], 99.90th=[28443], 99.95th=[28443], | 99.99th=[28443] bw ( KiB/s): min= 256, max= 896, per=25.22%, avg=601.11, stdev=185.80, samples=19 iops : min= 16, max= 56, avg=37.47, stdev=11.63, samples=19 write: IOPS=39, BW=633KiB/s (648kB/s)(6256KiB/9890msec) clat (usec): min=11475, max=64012, avg=21083.75, stdev=7175.81 lat (usec): min=11476, max=64013, avg=21084.96, stdev=7175.87 clat percentiles (usec): | 1.00th=[11863], 5.00th=[12387], 10.00th=[13435], 20.00th=[14877], | 30.00th=[16581], 40.00th=[18744], 50.00th=[20055], 60.00th=[21627], | 70.00th=[23200], 80.00th=[25035], 90.00th=[31065], 95.00th=[35390], | 99.00th=[45351], 99.50th=[48497], 99.90th=[64226], 99.95th=[64226], | 99.99th=[64226] bw ( KiB/s): min= 416, max= 864, per=25.05%, avg=628.00, stdev=156.51, samples=19 iops : min= 26, max= 54, avg=39.16, stdev= 9.80, samples=19 lat (msec) : 2=3.26%, 4=29.30%, 10=13.41%, 20=27.86%, 50=26.04% lat (msec) : 100=0.13% cpu : usr=0.09%, sys=5.13%, ctx=965, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2384KiB/s (2441kB/s), 572KiB/s-640KiB/s (585kB/s-655kB/s), io=23.4MiB (24.5MB), run=9778-10049msec WRITE: bw=2508KiB/s (2568kB/s), 617KiB/s-651KiB/s (632kB/s-667kB/s), io=24.6MiB (25.8MB), run=9778-10049msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=27459: Fri Apr 19 11:21:40 2024 read: IOPS=1, BW=2026KiB/s (2075kB/s)(7168KiB/3538msec) clat (usec): min=247, max=1167.3k, avg=475681.76, stdev=517409.61 lat (usec): min=248, max=1167.3k, avg=475682.92, stdev=517409.55 clat percentiles (usec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], | 20.00th=[ 40633], 30.00th=[ 78119], 40.00th=[ 78119], | 50.00th=[ 147850], 60.00th=[ 926942], 70.00th=[ 926942], | 80.00th=[ 968885], 90.00th=[1166017], 95.00th=[1166017], | 99.00th=[1166017], 99.50th=[1166017], 99.90th=[1166017], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 2043, max= 4087, per=67.29%, avg=2556.50, stdev=1020.34, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1447KiB/s (1482kB/s)(5120KiB/3538msec) clat (usec): min=14280, max=90558, avg=41115.86, stdev=29257.82 lat (usec): min=14305, max=90569, avg=41154.47, stdev=29245.83 clat percentiles (usec): | 1.00th=[14222], 5.00th=[14222], 10.00th=[14222], 20.00th=[14222], | 30.00th=[28181], 40.00th=[28181], 50.00th=[31589], 60.00th=[31589], | 70.00th=[41157], 80.00th=[41157], 90.00th=[90702], 95.00th=[90702], | 99.00th=[90702], 99.50th=[90702], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 2048, max= 6131, per=76.88%, avg=4089.50, stdev=2887.12, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (usec) : 250=8.33% lat (msec) : 20=8.33%, 50=33.33%, 100=16.67%, 250=8.33%, 1000=16.67% cpu : usr=0.00%, sys=19.90%, ctx=1151, majf=0, minf=35 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27462: Fri Apr 19 11:21:40 2024 read: IOPS=0, BW=577KiB/s (591kB/s)(2048KiB/3547msec) clat (msec): min=52, max=1942, avg=997.56, stdev=1336.57 lat (msec): min=52, max=1942, avg=997.56, stdev=1336.57 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 53], | 30.00th=[ 53], 40.00th=[ 53], 50.00th=[ 53], 60.00th=[ 1938], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 2039, max= 2048, per=53.79%, avg=2043.50, stdev= 6.36, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2887KiB/s (2956kB/s)(10.0MiB/3547msec) clat (msec): min=27, max=1054, avg=154.30, stdev=318.03 lat (msec): min=27, max=1054, avg=154.36, stdev=318.02 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 28], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 44], | 70.00th=[ 86], 80.00th=[ 86], 90.00th=[ 142], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 6119, max=10240, per=100.00%, avg=8179.50, stdev=2913.99, samples=2 iops : min= 5, max= 10, avg= 7.50, stdev= 3.54, samples=2 lat (msec) : 50=58.33%, 100=16.67%, 250=8.33% cpu : usr=0.03%, sys=11.76%, ctx=370, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27464: Fri Apr 19 11:21:40 2024 read: IOPS=1, BW=1141KiB/s (1168kB/s)(6144KiB/5385msec) clat (usec): min=290, max=947427, avg=317059.66, stdev=471937.03 lat (usec): min=291, max=947428, avg=317060.56, stdev=471937.40 clat percentiles (usec): | 1.00th=[ 293], 5.00th=[ 293], 10.00th=[ 293], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 396], 50.00th=[ 396], 60.00th=[ 50070], | 70.00th=[901776], 80.00th=[901776], 90.00th=[943719], 95.00th=[943719], | 99.00th=[943719], 99.50th=[943719], 99.90th=[943719], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 2043, max= 8192, per=100.00%, avg=5117.50, stdev=4348.00, samples=2 iops : min= 1, max= 8, avg= 4.50, stdev= 4.95, samples=2 write: IOPS=1, BW=1141KiB/s (1168kB/s)(6144KiB/5385msec) clat (msec): min=16, max=3153, avg=580.17, stdev=1261.12 lat (msec): min=16, max=3153, avg=580.21, stdev=1261.14 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 17], 10.00th=[ 17], 20.00th=[ 40], | 30.00th=[ 40], 40.00th=[ 77], 50.00th=[ 77], 60.00th=[ 78], | 70.00th=[ 120], 80.00th=[ 120], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 2043, max= 6144, per=76.98%, avg=4094.33, stdev=2050.50, samples=3 iops : min= 1, max= 6, avg= 3.67, stdev= 2.52, samples=3 lat (usec) : 500=25.00% lat (msec) : 20=8.33%, 50=8.33%, 100=25.00%, 250=8.33%, 1000=16.67% cpu : usr=0.00%, sys=6.56%, ctx=609, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27466: Fri Apr 19 11:21:40 2024 read: IOPS=0, BW=950KiB/s (973kB/s)(5120KiB/5390msec) clat (usec): min=702, max=883199, avg=209452.47, stdev=378846.79 lat (usec): min=702, max=883200, avg=209453.30, stdev=378846.97 clat percentiles (usec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 8029], 40.00th=[ 8029], 50.00th=[ 52167], 60.00th=[ 52167], | 70.00th=[103285], 80.00th=[103285], 90.00th=[884999], 95.00th=[884999], | 99.00th=[884999], 99.50th=[884999], 99.90th=[884999], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 4096, max= 4096, per=100.00%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1330KiB/s (1362kB/s)(7168KiB/5390msec) clat (msec): min=26, max=3119, avg=619.46, stdev=1144.97 lat (msec): min=26, max=3119, avg=619.51, stdev=1145.00 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 27], 10.00th=[ 27], 20.00th=[ 48], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 80], 60.00th=[ 110], | 70.00th=[ 110], 80.00th=[ 894], 90.00th=[ 3104], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 2048, max= 6144, per=67.38%, avg=3584.00, stdev=1960.81, samples=4 iops : min= 2, max= 6, avg= 3.50, stdev= 1.91, samples=4 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 50=16.67%, 100=25.00%, 250=16.67%, 1000=16.67% cpu : usr=0.00%, sys=6.18%, ctx=426, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3800KiB/s (3891kB/s), 577KiB/s-2026KiB/s (591kB/s-2075kB/s), io=20.0MiB (20.0MB), run=3538-5390msec WRITE: bw=5319KiB/s (5447kB/s), 1141KiB/s-2887KiB/s (1168kB/s-2956kB/s), io=28.0MiB (29.4MB), run=3538-5390msec rand-rw: (groupid=0, jobs=1): err= 0: pid=27460: Fri Apr 19 11:21:40 2024 read: IOPS=2, BW=2147KiB/s (2198kB/s)(7168KiB/3339msec) clat (msec): min=25, max=979, avg=289.54, stdev=425.15 lat (msec): min=25, max=979, avg=289.54, stdev=425.15 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 26], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 42], 40.00th=[ 42], 50.00th=[ 45], 60.00th=[ 67], | 70.00th=[ 67], 80.00th=[ 835], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 2048, max= 4096, per=68.12%, avg=2560.00, stdev=1024.00, samples=4 iops : min= 2, max= 4, avg= 2.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1533KiB/s (1570kB/s)(5120KiB/3339msec) clat (msec): min=50, max=1035, avg=259.84, stdev=434.14 lat (msec): min=50, max=1035, avg=259.89, stdev=434.14 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 51], | 30.00th=[ 57], 40.00th=[ 57], 50.00th=[ 65], 60.00th=[ 65], | 70.00th=[ 92], 80.00th=[ 92], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 2048, max= 4096, per=58.39%, avg=3072.00, stdev=1448.15, samples=2 iops : min= 2, max= 4, avg= 3.00, stdev= 1.41, samples=2 lat (msec) : 50=33.33%, 100=41.67%, 1000=16.67% cpu : usr=0.00%, sys=4.52%, ctx=37, majf=0, minf=35 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27461: Fri Apr 19 11:21:40 2024 read: IOPS=0, BW=448KiB/s (458kB/s)(2048KiB/4575msec) clat (msec): min=52, max=1106, avg=579.67, stdev=745.17 lat (msec): min=52, max=1106, avg=579.67, stdev=745.17 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 53], | 30.00th=[ 53], 40.00th=[ 53], 50.00th=[ 53], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1841, max= 2048, per=51.74%, avg=1944.50, stdev=146.37, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2238KiB/s (2292kB/s)(10.0MiB/4575msec) clat (msec): min=64, max=1943, avg=341.35, stdev=614.90 lat (msec): min=64, max=1944, avg=341.48, stdev=614.93 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 66], | 30.00th=[ 67], 40.00th=[ 70], 50.00th=[ 72], 60.00th=[ 72], | 70.00th=[ 122], 80.00th=[ 122], 90.00th=[ 860], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 1841, max= 8192, per=66.93%, avg=3521.00, stdev=2723.00, samples=5 iops : min= 1, max= 8, avg= 3.00, stdev= 2.92, samples=5 lat (msec) : 100=66.67%, 250=8.33%, 1000=8.33% cpu : usr=0.04%, sys=4.26%, ctx=74, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27463: Fri Apr 19 11:21:40 2024 read: IOPS=1, BW=1128KiB/s (1155kB/s)(6144KiB/5449msec) clat (msec): min=35, max=856, avg=304.13, stdev=398.04 lat (msec): min=35, max=856, avg=304.13, stdev=398.04 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 36], 10.00th=[ 36], 20.00th=[ 37], | 30.00th=[ 37], 40.00th=[ 37], 50.00th=[ 37], 60.00th=[ 84], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1750, max= 4071, per=82.62%, avg=3105.00, stdev=1208.41, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1128KiB/s (1155kB/s)(6144KiB/5449msec) clat (msec): min=61, max=3157, avg=602.31, stdev=1252.49 lat (msec): min=61, max=3158, avg=602.39, stdev=1252.51 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 63], | 30.00th=[ 63], 40.00th=[ 70], 50.00th=[ 70], 60.00th=[ 116], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 1750, max= 4096, per=54.05%, avg=2843.75, stdev=1131.57, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 50=25.00%, 100=33.33%, 250=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.85%, ctx=64, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27465: Fri Apr 19 11:21:40 2024 read: IOPS=1, BW=1501KiB/s (1537kB/s)(5120KiB/3412msec) clat (usec): min=32690, max=50796, avg=40936.34, stdev=9004.58 lat (usec): min=32691, max=50797, avg=40943.13, stdev=9000.26 clat percentiles (usec): | 1.00th=[32637], 5.00th=[32637], 10.00th=[32637], 20.00th=[32637], | 30.00th=[34866], 40.00th=[34866], 50.00th=[35390], 60.00th=[35390], | 70.00th=[50594], 80.00th=[50594], 90.00th=[50594], 95.00th=[50594], | 99.00th=[50594], 99.50th=[50594], 99.90th=[50594], 99.95th=[50594], | 99.99th=[50594] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2101KiB/s (2151kB/s)(7168KiB/3412msec) clat (msec): min=59, max=1942, avg=457.99, stdev=703.96 lat (msec): min=59, max=1942, avg=458.05, stdev=703.98 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 60], 10.00th=[ 60], 20.00th=[ 81], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 110], 60.00th=[ 130], | 70.00th=[ 130], 80.00th=[ 785], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 2048, max= 8192, per=97.32%, avg=5120.00, stdev=4344.46, samples=2 iops : min= 2, max= 8, avg= 5.00, stdev= 4.24, samples=2 lat (msec) : 50=25.00%, 100=41.67%, 250=16.67%, 1000=8.33% cpu : usr=0.00%, sys=5.63%, ctx=39, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3758KiB/s (3849kB/s), 448KiB/s-2147KiB/s (458kB/s-2198kB/s), io=20.0MiB (20.0MB), run=3339-5449msec WRITE: bw=5262KiB/s (5388kB/s), 1128KiB/s-2238KiB/s (1155kB/s-2292kB/s), io=28.0MiB (29.4MB), run=3339-5449msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=27476: Fri Apr 19 11:21:46 2024 read: IOPS=0, BW=2908KiB/s (2978kB/s)(12.0MiB/4225msec) clat (msec): min=90, max=2527, avg=1408.18, stdev=1230.72 lat (msec): min=90, max=2527, avg=1408.18, stdev=1230.72 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 1603], 50.00th=[ 1603], 60.00th=[ 1603], | 70.00th=[ 2534], 80.00th=[ 2534], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 100=33.33% cpu : usr=0.00%, sys=41.26%, ctx=1141, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27478: Fri Apr 19 11:21:46 2024 read: IOPS=0, BW=841KiB/s (861kB/s)(4096KiB/4869msec) clat (nsec): min=90758k, max=90758k, avg=90757998.00, stdev= 0.00 lat (nsec): min=90759k, max=90759k, avg=90758818.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[90702], 5.00th=[90702], 10.00th=[90702], 20.00th=[90702], | 30.00th=[90702], 40.00th=[90702], 50.00th=[90702], 60.00th=[90702], | 70.00th=[90702], 80.00th=[90702], 90.00th=[90702], 95.00th=[90702], | 99.00th=[90702], 99.50th=[90702], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1682KiB/s (1723kB/s)(8192KiB/4869msec) clat (msec): min=218, max=4556, avg=2387.64, stdev=3067.87 lat (msec): min=218, max=4557, avg=2387.97, stdev=3068.00 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 4530], | 70.00th=[ 4530], 80.00th=[ 4530], 90.00th=[ 4530], 95.00th=[ 4530], | 99.00th=[ 4530], 99.50th=[ 4530], 99.90th=[ 4530], 99.95th=[ 4530], | 99.99th=[ 4530] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 250=33.33% cpu : usr=0.00%, sys=3.66%, ctx=285, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27480: Fri Apr 19 11:21:46 2024 write: IOPS=0, BW=2685KiB/s (2750kB/s)(12.0MiB/4576msec) clat (msec): min=94, max=4308, avg=1512.87, stdev=2421.22 lat (msec): min=95, max=4308, avg=1513.13, stdev=2421.21 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 95], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 100=33.33%, 250=33.33% cpu : usr=0.02%, sys=5.75%, ctx=42, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27482: Fri Apr 19 11:21:46 2024 write: IOPS=0, BW=2571KiB/s (2632kB/s)(12.0MiB/4780msec) clat (msec): min=163, max=4343, avg=1590.62, stdev=2384.32 lat (msec): min=163, max=4343, avg=1590.96, stdev=2384.26 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 266], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33% cpu : usr=0.00%, sys=5.42%, ctx=63, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3365KiB/s (3446kB/s), 841KiB/s-2908KiB/s (861kB/s-2978kB/s), io=16.0MiB (16.8MB), run=4225-4869msec WRITE: bw=6730KiB/s (6891kB/s), 1682KiB/s-2685KiB/s (1723kB/s-2750kB/s), io=32.0MiB (33.6MB), run=4576-4869msec rand-rw: (groupid=0, jobs=1): err= 0: pid=27477: Fri Apr 19 11:21:46 2024 read: IOPS=0, BW=2533KiB/s (2594kB/s)(12.0MiB/4851msec) clat (msec): min=92, max=4458, avg=1612.84, stdev=2466.73 lat (msec): min=92, max=4458, avg=1612.84, stdev=2466.73 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 93], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 4463], 80.00th=[ 4463], 90.00th=[ 4463], 95.00th=[ 4463], | 99.00th=[ 4463], 99.50th=[ 4463], 99.90th=[ 4463], 99.95th=[ 4463], | 99.99th=[ 4463] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33% cpu : usr=0.00%, sys=1.90%, ctx=36, majf=0, minf=29 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27479: Fri Apr 19 11:21:46 2024 read: IOPS=0, BW=813KiB/s (832kB/s)(4096KiB/5039msec) clat (nsec): min=227809k, max=227809k, avg=227809431.00, stdev= 0.00 lat (nsec): min=227810k, max=227810k, avg=227810251.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 228], | 70.00th=[ 228], 80.00th=[ 228], 90.00th=[ 228], 95.00th=[ 228], | 99.00th=[ 228], 99.50th=[ 228], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1626KiB/s (1665kB/s)(8192KiB/5039msec) clat (msec): min=190, max=4613, avg=2402.03, stdev=3128.02 lat (msec): min=190, max=4614, avg=2402.21, stdev=3127.95 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 4597], | 70.00th=[ 4597], 80.00th=[ 4597], 90.00th=[ 4597], 95.00th=[ 4597], | 99.00th=[ 4597], 99.50th=[ 4597], 99.90th=[ 4597], 99.95th=[ 4597], | 99.99th=[ 4597] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67% cpu : usr=0.00%, sys=1.95%, ctx=42, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27481: Fri Apr 19 11:21:46 2024 write: IOPS=0, BW=2430KiB/s (2489kB/s)(12.0MiB/5056msec) clat (msec): min=105, max=4606, avg=1681.63, stdev=2535.54 lat (msec): min=105, max=4606, avg=1681.89, stdev=2535.51 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 106], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 4597], 80.00th=[ 4597], 90.00th=[ 4597], 95.00th=[ 4597], | 99.00th=[ 4597], 99.50th=[ 4597], 99.90th=[ 4597], 99.95th=[ 4597], | 99.99th=[ 4597] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33% cpu : usr=0.02%, sys=2.37%, ctx=32, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=27483: Fri Apr 19 11:21:46 2024 write: IOPS=0, BW=2379KiB/s (2436kB/s)(12.0MiB/5165msec) clat (msec): min=81, max=4987, avg=1720.96, stdev=2829.07 lat (msec): min=81, max=4988, avg=1721.24, stdev=2829.16 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 94], 50.00th=[ 94], 60.00th=[ 94], | 70.00th=[ 5000], 80.00th=[ 5000], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=66.67% cpu : usr=0.04%, sys=2.77%, ctx=60, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3251KiB/s (3329kB/s), 813KiB/s-2533KiB/s (832kB/s-2594kB/s), io=16.0MiB (16.8MB), run=4851-5039msec WRITE: bw=6344KiB/s (6497kB/s), 1626KiB/s-2430KiB/s (1665kB/s-2489kB/s), io=32.0MiB (33.6MB), run=5039-5165msec