== sanity test 255a: check 'lfs ladvise -a willread' ===== 17:44:56 (1781300696)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 2.92846 s, 35.8 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: 0.506382
Iter 1/10: OSS cache speed: 0.607975
Iter 1/10: ladvise speed: 0.607131
Iter 2/10: reading without willread hint
Iter 2/10: uncached speed: 0.605845
Iter 2/10: OSS cache speed: 0.67435
Iter 2/10: ladvise speed: 0.617971
Iter 3/10: reading without willread hint
Iter 3/10: uncached speed: 0.572086
Iter 3/10: OSS cache speed: 0.672898
Iter 3/10: ladvise speed: 0.762215
Iter 4/10: reading without willread hint
Iter 4/10: uncached speed: 0.630314
Iter 4/10: OSS cache speed: 0.671486
Iter 4/10: ladvise speed: 0.569356
Iter 5/10: reading without willread hint
Iter 5/10: uncached speed: 0.468212
Iter 5/10: OSS cache speed: 0.638645
Iter 5/10: ladvise speed: 0.722743
Iter 6/10: reading without willread hint
Iter 6/10: uncached speed: 0.64214
Iter 6/10: OSS cache speed: 0.667227
Iter 6/10: ladvise speed: 0.561785
Iter 7/10: reading without willread hint
Iter 7/10: uncached speed: 0.574323
Iter 7/10: OSS cache speed: 0.68199
Iter 7/10: ladvise speed: 0.57528
Iter 8/10: reading without willread hint
Iter 8/10: uncached speed: 0.548023
Iter 8/10: OSS cache speed: 0.572782
Iter 8/10: ladvise speed: 0.550032
Iter 9/10: reading without willread hint
Iter 9/10: uncached speed: 0.558765
Iter 9/10: OSS cache speed: 0.649857
Iter 9/10: ladvise speed: 0.709126
Iter 10/10: reading without willread hint
Iter 10/10: uncached speed: 0.608785
Iter 10/10: OSS cache speed: 0.751221
Iter 10/10: ladvise speed: 0.64845
Average uncached read: .57
Average speedup with OSS cached read:  .65 = +14.03%
Average speedup with ladvise willread:  .63 = +10.52%
/home/green/git/lustre-release/lustre/tests/sanity.sh: line 21906: à‚<Ï×U: < 20 : syntax error: operand expected (error token is "< 20 ")
/home/green/git/lustre-release/lustre/tests/sanity.sh: line 21920:   >  : >  : 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  .32%, got .63% 
  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:21921:ladvise_willread_performance()
  = /home/green/git/lustre-release/lustre/tests/sanity.sh:22002: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:22004:main()