== sanity test 255a: check 'lfs ladvise -a willread' ===== 13:55:32 (1713290132)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.64093 s, 39.7 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: 1.78332
Iter 1/10: OSS cache speed: 1.79129
Iter 1/10: ladvise speed: 1.63877
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 1.6108
Iter 2/10: OSS cache speed: 1.61506
Iter 2/10: ladvise speed: 1.68807
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 1.44067
Iter 3/10: OSS cache speed: 1.36713
Iter 3/10: ladvise speed: 1.43627
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 1.82577
Iter 4/10: OSS cache speed: 1.39739
Iter 4/10: ladvise speed: 1.37247
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.5942
Iter 5/10: OSS cache speed: 1.55648
Iter 5/10: ladvise speed: 1.7609
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 1.33829
Iter 6/10: OSS cache speed: 1.52135
Iter 6/10: ladvise speed: 1.59818
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 1.3838
Iter 7/10: OSS cache speed: 1.37309
Iter 7/10: ladvise speed: 1.36494
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 1.37057
Iter 8/10: OSS cache speed: 1.39962
Iter 8/10: ladvise speed: 1.3938
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 1.59487
Iter 9/10: OSS cache speed: 1.38517
Iter 9/10: ladvise speed: 1.38417
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 1.38966
Iter 10/10: OSS cache speed: 1.38387
Iter 10/10: ladvise speed: 1.40388
Average uncached read: 1.53
Average speedup with OSS cached read: 1.47 = +-3.92%
Average speedup with ladvise willread: 1.50 = +-1.96%
Speedup with OSS cached read less than 20%, got -3.92%. Skipping ladvise willread check.
fail_loc=0