== sanity test 255a: check 'lfs ladvise -a willread' ===== 05:37:17 (1781257037)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 3.40119 s, 30.8 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=4
fail_loc=0x237
Asynchronous ladvise shouldn't wait
fail_loc=0
Iter 1/10: reading without willread hint
Iter 1/10: uncached speed: 0.574356
Iter 1/10: OSS cache speed: 0.678065
Iter 1/10: ladvise speed: 0.679617
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 0.693214
Iter 2/10: OSS cache speed: 0.655151
Iter 2/10: ladvise speed: 0.630685
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 0.665657
Iter 3/10: OSS cache speed: 0.677025
Iter 3/10: ladvise speed: 0.69234
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.535436
Iter 4/10: OSS cache speed: 0.637767
Iter 4/10: ladvise speed: 0.7223
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 0.54262
Iter 5/10: OSS cache speed: 0.745359
Iter 5/10: ladvise speed: 0.706773
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 0.602277
Iter 6/10: OSS cache speed: 0.747044
Iter 6/10: ladvise speed: 0.528911
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 0.587747
Iter 7/10: OSS cache speed: 0.797466
Iter 7/10: ladvise speed: 0.872339
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.53955
Iter 8/10: OSS cache speed: 0.650245
Iter 8/10: ladvise speed: 0.743046
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.624719
Iter 9/10: OSS cache speed: 0.699419
Iter 9/10: ladvise speed: 0.745189
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.621902
Iter 10/10: OSS cache speed: 0.77341
Iter 10/10: ladvise speed: 0.669651
Average uncached read: .59
Average speedup with OSS cached read:  .70 = +18.64%
Average speedup with ladvise willread:  .69 = +16.94%
/home/green/git/lustre-release/lustre/tests/sanity.sh: line 21885: `tíN¿U: < 20 : syntax error: operand expected (error token is "< 20 ")
/home/green/git/lustre-release/lustre/tests/sanity.sh: line 21899:   >  : >  : syntax error: operand expected (error token is ">  ")
running in VM 'kvm', ignore error
 sanity test_255a: @@@@@@ IGNORE (env=kvm): Speedup with willread is less than  .35%, got .69% 
  Trace dump:
  = /home/green/git/lustre-release/lustre/tests/test-framework.sh:6475:error_ignore()
  = /home/green/git/lustre-release/lustre/tests/test-framework.sh:6490:error_not_in_vm()
  = /home/green/git/lustre-release/lustre/tests/sanity.sh:21900:ladvise_willread_performance()
  = /home/green/git/lustre-release/lustre/tests/sanity.sh:21981:test_255a()
  = /home/green/git/lustre-release/lustre/tests/test-framework.sh:6817:run_one()
  = /home/green/git/lustre-release/lustre/tests/test-framework.sh:6864:run_one_logged()
  = /home/green/git/lustre-release/lustre/tests/test-framework.sh:6690:run_test()
  = /home/green/git/lustre-release/lustre/tests/sanity.sh:21983:main()