== sanity test 255a: check 'lfs ladvise -a willread' ===== 11:50:23 (1776181823) 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 2.33842 s, 44.8 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]} ... 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]} ... 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]} ... 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: 0.695421 Iter 1/10: OSS cache speed: 0.805036 Iter 1/10: ladvise speed: 0.948591 Iter 2/10: reading without willread hint Iter 2/10: uncached speed: 0.712643 Iter 2/10: OSS cache speed: 0.799176 Iter 2/10: ladvise speed: 1.08286 Iter 3/10: reading without willread hint Iter 3/10: uncached speed: 0.594275 Iter 3/10: OSS cache speed: 0.959301 Iter 3/10: ladvise speed: 0.998836 Iter 4/10: reading without willread hint Iter 4/10: uncached speed: 0.892648 Iter 4/10: OSS cache speed: 0.743935 Iter 4/10: ladvise speed: 0.956252 Iter 5/10: reading without willread hint Iter 5/10: uncached speed: 0.587848 Iter 5/10: OSS cache speed: 0.813909 Iter 5/10: ladvise speed: 0.799928 Iter 6/10: reading without willread hint Iter 6/10: uncached speed: 0.562257 Iter 6/10: OSS cache speed: 0.65084 Iter 6/10: ladvise speed: 0.655643 Iter 7/10: reading without willread hint Iter 7/10: uncached speed: 0.624 Iter 7/10: OSS cache speed: 0.813534 Iter 7/10: ladvise speed: 0.801609 Iter 8/10: reading without willread hint Iter 8/10: uncached speed: 0.698601 Iter 8/10: OSS cache speed: 0.916342 Iter 8/10: ladvise speed: 0.996889 Iter 9/10: reading without willread hint Iter 9/10: uncached speed: 0.730333 Iter 9/10: OSS cache speed: 0.920311 Iter 9/10: ladvise speed: 0.831399 Iter 10/10: reading without willread hint Iter 10/10: uncached speed: 0.711026 Iter 10/10: OSS cache speed: 0.815545 Iter 10/10: ladvise speed: 0.879392 Average uncached read: .68 Average speedup with OSS cached read: .82 = +20.58% Average speedup with ladvise willread: .89 = +30.88% /home/green/git/lustre-release/lustre/tests/sanity.sh: line 21950: d V: < 20 : syntax error: operand expected (error token is "< 20 ") /home/green/git/lustre-release/lustre/tests/sanity.sh: line 21964: > : > : 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 .41%, got .89% 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:21965:ladvise_willread_performance() = /home/green/git/lustre-release/lustre/tests/sanity.sh:22046: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:22048:main()