== sanity test 255a: check 'lfs ladvise -a willread' ===== 12:25:32 (1713284732)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.34147 s, 44.8 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: 1.4471
Iter 1/10: OSS cache speed: 1.60702
Iter 1/10: ladvise speed: 1.59682
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 1.35429
Iter 2/10: OSS cache speed: 1.58622
Iter 2/10: ladvise speed: 1.6061
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 1.40656
Iter 3/10: OSS cache speed: 2.60689
Iter 3/10: ladvise speed: 2.54633
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 1.88706
Iter 4/10: OSS cache speed: 1.75472
Iter 4/10: ladvise speed: 1.63758
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.45435
Iter 5/10: OSS cache speed: 1.59884
Iter 5/10: ladvise speed: 1.64371
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 1.76508
Iter 6/10: OSS cache speed: 1.58772
Iter 6/10: ladvise speed: 1.58208
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 1.36688
Iter 7/10: OSS cache speed: 1.57023
Iter 7/10: ladvise speed: 1.60745
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 1.36672
Iter 8/10: OSS cache speed: 1.59553
Iter 8/10: ladvise speed: 1.6114
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 1.35521
Iter 9/10: OSS cache speed: 1.54468
Iter 9/10: ladvise speed: 1.56316
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 1.38757
Iter 10/10: OSS cache speed: 1.83294
Iter 10/10: ladvise speed: 1.72847
Average uncached read: 1.47
Average speedup with OSS cached read: 1.72 = +17.00%
Average speedup with ladvise willread: 1.71 = +16.32%
Speedup with OSS cached read less than 20%, got 17.00%. Skipping ladvise willread check.
fail_loc=0