== sanity test 255a: check 'lfs ladvise -a willread' ===== 02:55:15 (1727765715)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 5.07516 s, 20.7 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
llite.lustre-ffff8800b6d3e800.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 0.582244
Iter 1/10: OSS cache speed: 0.609304
Iter 1/10: ladvise speed: 0.582986
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 0.609646
Iter 2/10: OSS cache speed: 0.592135
Iter 2/10: ladvise speed: 0.597037
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 0.581194
Iter 3/10: OSS cache speed: 0.59713
Iter 3/10: ladvise speed: 0.48828
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.537192
Iter 4/10: OSS cache speed: 0.552804
Iter 4/10: ladvise speed: 0.537657
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 0.578163
Iter 5/10: OSS cache speed: 0.589596
Iter 5/10: ladvise speed: 0.579852
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 0.598138
Iter 6/10: OSS cache speed: 0.6034
Iter 6/10: ladvise speed: 0.620927
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 0.578807
Iter 7/10: OSS cache speed: 0.592267
Iter 7/10: ladvise speed: 0.604306
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.615453
Iter 8/10: OSS cache speed: 0.611531
Iter 8/10: ladvise speed: 0.613019
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.645564
Iter 9/10: OSS cache speed: 0.73868
Iter 9/10: ladvise speed: 0.729971
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.756773
Iter 10/10: OSS cache speed: 0.761741
Iter 10/10: ladvise speed: 0.755811
Average uncached read: .60
Average speedup with OSS cached read: .62 = +3.33%
Average speedup with ladvise willread: .61 = +1.66%
Speedup with OSS cached read less than 20%, got 3.33%. Skipping ladvise willread check.
fail_loc=0