== sanity test 255a: check 'lfs ladvise -a willread' ===== 05:41:43 (1715334103)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.70835 s, 38.7 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
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 2.84052
Iter 1/10: OSS cache speed: 2.92939
Iter 1/10: ladvise speed: 2.4675
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 2.64158
Iter 2/10: OSS cache speed: 2.52711
Iter 2/10: ladvise speed: 2.45233
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 2.45834
Iter 3/10: OSS cache speed: 2.52683
Iter 3/10: ladvise speed: 2.71148
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 2.48799
Iter 4/10: OSS cache speed: 2.61625
Iter 4/10: ladvise speed: 2.5425
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 2.54303
Iter 5/10: OSS cache speed: 2.86916
Iter 5/10: ladvise speed: 2.41421
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 2.534
Iter 6/10: OSS cache speed: 2.60285
Iter 6/10: ladvise speed: 2.53557
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 2.58906
Iter 7/10: OSS cache speed: 2.71058
Iter 7/10: ladvise speed: 2.74497
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 2.74713
Iter 8/10: OSS cache speed: 2.75197
Iter 8/10: ladvise speed: 2.648
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 2.54383
Iter 9/10: OSS cache speed: 2.50735
Iter 9/10: ladvise speed: 2.73423
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 2.63018
Iter 10/10: OSS cache speed: 2.68265
Iter 10/10: ladvise speed: 2.68056
Average uncached read: 2.60
Average speedup with OSS cached read: 2.67 = +2.69%
Average speedup with ladvise willread: 2.59 = +-.38%
Speedup with OSS cached read less than 20%, got 2.69%. Skipping ladvise willread check.
fail_loc=0