== sanity test 255a: check 'lfs ladvise -a willread' ===== 13:54:54 (1713290094)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.63321 s, 39.8 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: 1.43161
Iter 1/10: OSS cache speed: 1.7585
Iter 1/10: ladvise speed: 1.7112
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 1.44641
Iter 2/10: OSS cache speed: 1.69543
Iter 2/10: ladvise speed: 1.69873
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 1.43606
Iter 3/10: OSS cache speed: 1.66586
Iter 3/10: ladvise speed: 1.67905
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 1.43736
Iter 4/10: OSS cache speed: 1.61432
Iter 4/10: ladvise speed: 1.65108
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.38314
Iter 5/10: OSS cache speed: 1.64554
Iter 5/10: ladvise speed: 1.65399
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 1.3967
Iter 6/10: OSS cache speed: 1.69328
Iter 6/10: ladvise speed: 1.66631
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 1.39059
Iter 7/10: OSS cache speed: 1.60773
Iter 7/10: ladvise speed: 1.64077
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 1.37782
Iter 8/10: OSS cache speed: 1.61216
Iter 8/10: ladvise speed: 1.61395
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 1.36709
Iter 9/10: OSS cache speed: 1.59548
Iter 9/10: ladvise speed: 1.6354
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 1.36137
Iter 10/10: OSS cache speed: 1.59658
Iter 10/10: ladvise speed: 1.62128
Average uncached read: 1.40
Average speedup with OSS cached read: 1.64 = +17.14%
Average speedup with ladvise willread: 1.65 = +17.85%
Speedup with OSS cached read less than 20%, got 17.14%. Skipping ladvise willread check.
fail_loc=0