== sanity test 255a: check 'lfs ladvise -a willread' ===== 03:35:29 (1787384129)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 11.6051 s, 9.0 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-ffff8ed942ad9800.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 0.398655
Iter 1/10: OSS cache speed: 0.427786
Iter 1/10: ladvise speed: 0.464068
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 0.423009
Iter 2/10: OSS cache speed: 0.416634
Iter 2/10: ladvise speed: 0.472678
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 0.426837
Iter 3/10: OSS cache speed: 0.451363
Iter 3/10: ladvise speed: 0.401103
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.451237
Iter 4/10: OSS cache speed: 0.429678
Iter 4/10: ladvise speed: 0.427712
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 0.412625
Iter 5/10: OSS cache speed: 0.402327
Iter 5/10: ladvise speed: 0.41927
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 0.459532
Iter 6/10: OSS cache speed: 0.457393
Iter 6/10: ladvise speed: 0.447979
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 0.436634
Iter 7/10: OSS cache speed: 0.422275
Iter 7/10: ladvise speed: 0.440623
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.434657
Iter 8/10: OSS cache speed: 0.42368
Iter 8/10: ladvise speed: 0.393487
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.366943
Iter 9/10: OSS cache speed: 0.373499
Iter 9/10: ladvise speed: 0.395314
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.406176
Iter 10/10: OSS cache speed: 0.399519
Iter 10/10: ladvise speed: 0.390835
Average uncached read: .42
Average speedup with OSS cached read:  .42 = +0%
Average speedup with ladvise willread:  .42 = +0%
Speedup with OSS cached read less than 20%,  got 0%. Skipping ladvise willread check.
fail_loc=0