== sanity test 255a: check 'lfs ladvise -a willread' ===== 04:23:21 (1787387001)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 12.8058 s, 8.2 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
llite.lustre-ffff8f4d94a4b000.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 0.310994
Iter 1/10: OSS cache speed: 0.283392
Iter 1/10: ladvise speed: 0.274101
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 0.275744
Iter 2/10: OSS cache speed: 0.263414
Iter 2/10: ladvise speed: 0.291844
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 0.305083
Iter 3/10: OSS cache speed: 0.295966
Iter 3/10: ladvise speed: 0.246708
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.280873
Iter 4/10: OSS cache speed: 0.306383
Iter 4/10: ladvise speed: 0.298784
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 0.311586
Iter 5/10: OSS cache speed: 0.29563
Iter 5/10: ladvise speed: 0.298598
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 0.354348
Iter 6/10: OSS cache speed: 0.291895
Iter 6/10: ladvise speed: 0.332339
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 0.323657
Iter 7/10: OSS cache speed: 0.314189
Iter 7/10: ladvise speed: 0.316892
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.308777
Iter 8/10: OSS cache speed: 0.34565
Iter 8/10: ladvise speed: 0.357239
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.364182
Iter 9/10: OSS cache speed: 0.386072
Iter 9/10: ladvise speed: 0.356875
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.329268
Iter 10/10: OSS cache speed: 0.369491
Iter 10/10: ladvise speed: 0.336907
Average uncached read: .31
Average speedup with OSS cached read:  .31 = +0%
Average speedup with ladvise willread:  .31 = +0%
Speedup with OSS cached read less than 20%,  got 0%. Skipping ladvise willread check.
fail_loc=0