== sanity test 255a: check 'lfs ladvise -a willread' ===== 14:01:26 (1734116486)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.43761 s, 43.0 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-ffff8800b369c000.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 2.64535
Iter 1/10: OSS cache speed: 2.69866
Iter 1/10: ladvise speed: 2.66503
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 2.68379
Iter 2/10: OSS cache speed: 2.66781
Iter 2/10: ladvise speed: 2.29008
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 2.89049
Iter 3/10: OSS cache speed: 2.77807
Iter 3/10: ladvise speed: 2.9358
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 1.60137
Iter 4/10: OSS cache speed: 1.85106
Iter 4/10: ladvise speed: 1.72537
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.77142
Iter 5/10: OSS cache speed: 1.46339
Iter 5/10: ladvise speed: 2.0426
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 2.60405
Iter 6/10: OSS cache speed: 2.60357
Iter 6/10: ladvise speed: 2.50567
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 2.43989
Iter 7/10: OSS cache speed: 2.54783
Iter 7/10: ladvise speed: 2.60594
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 2.65932
Iter 8/10: OSS cache speed: 2.63181
Iter 8/10: ladvise speed: 2.67368
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 2.71375
Iter 9/10: OSS cache speed: 2.71924
Iter 9/10: ladvise speed: 2.75629
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 2.7259
Iter 10/10: OSS cache speed: 2.67521
Iter 10/10: ladvise speed: 2.67933
Average uncached read: 2.47
Average speedup with OSS cached read:  2.46 = +0%
Average speedup with ladvise willread:  2.48 = +0%
Speedup with OSS cached read less than 20%,  got 0%. Skipping ladvise willread check.
fail_loc=0