== sanity test 255a: check 'lfs ladvise -a willread' ===== 01:44:06 (1724305446)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 3.49884 s, 30.0 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
llite.lustre-ffff8800b6ff6800.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 1.11841
Iter 1/10: OSS cache speed: 0.946747
Iter 1/10: ladvise speed: 0.91662
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 1.03961
Iter 2/10: OSS cache speed: 0.900351
Iter 2/10: ladvise speed: 1.09274
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 1.0198
Iter 3/10: OSS cache speed: 0.988171
Iter 3/10: ladvise speed: 1.05865
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.993879
Iter 4/10: OSS cache speed: 1.32696
Iter 4/10: ladvise speed: 1.18566
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.18747
Iter 5/10: OSS cache speed: 1.1835
Iter 5/10: ladvise speed: 1.19613
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 1.16949
Iter 6/10: OSS cache speed: 1.2017
Iter 6/10: ladvise speed: 1.01301
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 1.09778
Iter 7/10: OSS cache speed: 1.00975
Iter 7/10: ladvise speed: 0.893493
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.914402
Iter 8/10: OSS cache speed: 0.991579
Iter 8/10: ladvise speed: 0.932755
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.900862
Iter 9/10: OSS cache speed: 0.898668
Iter 9/10: ladvise speed: 0.895541
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.991391
Iter 10/10: OSS cache speed: 0.992274
Iter 10/10: ladvise speed: 0.891151
Average uncached read: 1.04
Average speedup with OSS cached read: 1.04 = +0%
Average speedup with ladvise willread: 1.00 = +-3.84%
Speedup with OSS cached read less than 20%, got 0%. Skipping ladvise willread check.
fail_loc=0