== sanity test 255a: check 'lfs ladvise -a willread' ===== 10:45:52 (1713365152)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.7037 s, 38.8 MB/s
ladvise: range [2, 1] is invalid
Provide servers with advice about access patterns for a file.
usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]
               [--background|-b] [--unset|-u]

               {--end|-e END[kMGT]|--length|-l LENGTH[kMGT]}
               {[--mode|-m [READ,WRITE]}
               <file> ...

ladvise: range [2, 2] is invalid
Provide servers with advice about access patterns for a file.
usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]
               [--background|-b] [--unset|-u]

               {--end|-e END[kMGT]|--length|-l LENGTH[kMGT]}
               {[--mode|-m [READ,WRITE]}
               <file> ...

ladvise: conflicting arguments of -l and -e
Provide servers with advice about access patterns for a file.
usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]
               [--background|-b] [--unset|-u]

               {--end|-e END[kMGT]|--length|-l LENGTH[kMGT]}
               {[--mode|-m [READ,WRITE]}
               <file> ...

Synchronous ladvise should wait
fail_val=8
fail_loc=0x237
Asynchronous ladvise shouldn't wait
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 3.07055
Iter 1/10: OSS cache speed: 3.33957
Iter 1/10: ladvise speed: 3.35057
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 3.06525
Iter 2/10: OSS cache speed: 3.30293
Iter 2/10: ladvise speed: 2.89429
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 2.47549
Iter 3/10: OSS cache speed: 2.86152
Iter 3/10: ladvise speed: 2.90654
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 2.45471
Iter 4/10: OSS cache speed: 3.35909
Iter 4/10: ladvise speed: 3.33256
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 2.97579
Iter 5/10: OSS cache speed: 3.0205
Iter 5/10: ladvise speed: 3.14556
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 2.54105
Iter 6/10: OSS cache speed: 3.1707
Iter 6/10: ladvise speed: 3.28229
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 3.06381
Iter 7/10: OSS cache speed: 3.32686
Iter 7/10: ladvise speed: 3.34932
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 2.59164
Iter 8/10: OSS cache speed: 3.28097
Iter 8/10: ladvise speed: 3.35519
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 2.79015
Iter 9/10: OSS cache speed: 3.38792
Iter 9/10: ladvise speed: 3.32888
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 3.06339
Iter 10/10: OSS cache speed: 3.31807
Iter 10/10: ladvise speed: 3.3603
Average uncached read: 2.80
Average speedup with OSS cached read: 3.23 = +15.35%
Average speedup with ladvise willread: 3.23 = +15.35%
Speedup with OSS cached read less than 20%, got 15.35%. Skipping ladvise willread check.
fail_loc=0