== sanity test 255a: check 'lfs ladvise -a willread' ===== 12:54:41 (1788800081)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 14.4724 s, 7.2 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-ffff9f88c3c72800.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 0.409843
Iter 1/10: OSS cache speed: 0.455132
Iter 1/10: ladvise speed: 0.416054
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 0.407013
Iter 2/10: OSS cache speed: 0.398617
Iter 2/10: ladvise speed: 0.449344
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 0.451085
Iter 3/10: OSS cache speed: 0.396508
Iter 3/10: ladvise speed: 0.464536
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.430448
Iter 4/10: OSS cache speed: 0.375957
Iter 4/10: ladvise speed: 0.453768
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 0.367056
Iter 5/10: OSS cache speed: 0.473411
Iter 5/10: ladvise speed: 0.413677
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 0.509547
Iter 6/10: OSS cache speed: 0.559626
Iter 6/10: ladvise speed: 0.515459
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 0.519491
Iter 7/10: OSS cache speed: 0.489112
Iter 7/10: ladvise speed: 0.434998
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.450094
Iter 8/10: OSS cache speed: 0.422358
Iter 8/10: ladvise speed: 0.42921
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.474327
Iter 9/10: OSS cache speed: 0.516606
Iter 9/10: ladvise speed: 0.411347
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.444158
Iter 10/10: OSS cache speed: 0.389001
Iter 10/10: ladvise speed: 0.443066
Average uncached read: .44
Average speedup with OSS cached read:  .44 = +0%
Average speedup with ladvise willread:  .44 = +0%
Speedup with OSS cached read less than 20%,  got 0%. Skipping ladvise willread check.
fail_loc=0