== sanity test 255a: check 'lfs ladvise -a willread' ===== 11:05:59 (1713279959)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.31639 s, 45.3 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: 1.7807
Iter 1/10: OSS cache speed: 1.61945
Iter 1/10: ladvise speed: 1.64619
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 1.45031
Iter 2/10: OSS cache speed: 1.4538
Iter 2/10: ladvise speed: 1.74654
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 1.57238
Iter 3/10: OSS cache speed: 1.60469
Iter 3/10: ladvise speed: 1.65618
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 1.68224
Iter 4/10: OSS cache speed: 1.55808
Iter 4/10: ladvise speed: 1.46457
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.46993
Iter 5/10: OSS cache speed: 2.23588
Iter 5/10: ladvise speed: 2.45284
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 1.72804
Iter 6/10: OSS cache speed: 1.75244
Iter 6/10: ladvise speed: 1.50156
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 1.42049
Iter 7/10: OSS cache speed: 1.53153
Iter 7/10: ladvise speed: 1.93275
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 1.44904
Iter 8/10: OSS cache speed: 1.43245
Iter 8/10: ladvise speed: 1.42362
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 1.48195
Iter 9/10: OSS cache speed: 1.67755
Iter 9/10: ladvise speed: 1.477
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 1.38369
Iter 10/10: OSS cache speed: 2.00457
Iter 10/10: ladvise speed: 1.49157
Average uncached read: 1.54
Average speedup with OSS cached read: 1.68 = +9.09%
Average speedup with ladvise willread: 1.67 = +8.44%
Speedup with OSS cached read less than 20%, got 9.09%. Skipping ladvise willread check.
fail_loc=0