== sanity test 255a: check 'lfs ladvise -a willread' ===== 22:03:51 (1781661831)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 6.01254 s, 17.4 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-ffff9a0e060a3000.hybrid_io=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 2.1144
Iter 1/10: OSS cache speed: 2.26151
Iter 1/10: ladvise speed: 2.36057
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 2.17261
Iter 2/10: OSS cache speed: 2.34317
Iter 2/10: ladvise speed: 2.40157
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 2.14785
Iter 3/10: OSS cache speed: 2.40512
Iter 3/10: ladvise speed: 2.3808
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 2.03288
Iter 4/10: OSS cache speed: 2.35012
Iter 4/10: ladvise speed: 2.10703
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 1.80009
Iter 5/10: OSS cache speed: 2.0859
Iter 5/10: ladvise speed: 2.04317
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 2.07583
Iter 6/10: OSS cache speed: 1.93477
Iter 6/10: ladvise speed: 1.97212
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 1.54644
Iter 7/10: OSS cache speed: 1.69401
Iter 7/10: ladvise speed: 1.31136
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 1.47615
Iter 8/10: OSS cache speed: 1.42533
Iter 8/10: ladvise speed: 1.42261
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 1.2252
Iter 9/10: OSS cache speed: 1.33183
Iter 9/10: ladvise speed: 1.38175
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 1.15583