== sanity test 255a: check 'lfs ladvise -a willread' ===== 03:25:41 (1711092341)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.27883 s, 46.0 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
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 1.79984
Iter 1/10: OSS cache speed: 2.49333
Iter 1/10: ladvise speed: 2.56848
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 3.13837
Iter 2/10: OSS cache speed: 2.52008
Iter 2/10: ladvise speed: 2.7232
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 2.13923
Iter 3/10: OSS cache speed: 2.32359
Iter 3/10: ladvise speed: 3.15589
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 2.00177
Iter 4/10: OSS cache speed: 2.1619
Iter 4/10: ladvise speed: 2.37725
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 2.26657
Iter 5/10: OSS cache speed: 2.80172
Iter 5/10: ladvise speed: 3.19464
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 2.45233
Iter 6/10: OSS cache speed: 2.43214
Iter 6/10: ladvise speed: 3.06635
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 2.92772
Iter 7/10: OSS cache speed: 3.49216
Iter 7/10: ladvise speed: 3.4502
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 3.2637
Iter 8/10: OSS cache speed: 3.56942
Iter 8/10: ladvise speed: 2.42578
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 2.92727
Iter 9/10: OSS cache speed: 0.940352
Iter 9/10: ladvise speed: 0.235354
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.416963
Iter 10/10: OSS cache speed: 0.15112
Iter 10/10: ladvise speed: 0.151419
Average uncached read: 2.33
Average speedup with OSS cached read: 2.28 = +-2.14%
Average speedup with ladvise willread: 2.33 = +0%
Speedup with OSS cached read less than 20%, got -2.14%. Skipping ladvise willread check.
fail_loc=0