== sanity test 255a: check 'lfs ladvise -a willread' ===== 10:57:44 (1755097064)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 5.48041 s, 19.1 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-ffff8b5518d4a000.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 2.22867
Iter 1/10: OSS cache speed: 2.47165
Iter 1/10: ladvise speed: 2.47446
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 2.27576
Iter 2/10: OSS cache speed: 2.36736
Iter 2/10: ladvise speed: 2.53696
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 2.35854
Iter 3/10: OSS cache speed: 2.08481
Iter 3/10: ladvise speed: 2.45632
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 2.32982
Iter 4/10: OSS cache speed: 2.5112
Iter 4/10: ladvise speed: 2.51645
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 2.30409
Iter 5/10: OSS cache speed: 2.46948
Iter 5/10: ladvise speed: 2.40682
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 2.26119
Iter 6/10: OSS cache speed: 2.50405
Iter 6/10: ladvise speed: 2.54852
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 2.40716
Iter 7/10: OSS cache speed: 2.55937
Iter 7/10: ladvise speed: 2.56914
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 2.43024
Iter 8/10: OSS cache speed: 2.61848
Iter 8/10: ladvise speed: 2.28549
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 2.23289
Iter 9/10: OSS cache speed: 2.46652
Iter 9/10: ladvise speed: 2.55551
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 2.38687