On Saturday, June 08, 2013 09:57:03 AM Doug Ledford wrote: > Bad test. The first run took the hit for getting the file info into > page cache, after that, everything was run from cache and you got the > second result above and the results below. You have to make sure that > from run to run the cache state of the file in question is identical.
Try it yourself. :-) I know what you are saying and run the test probably 8 times before posting results. I also have the audit rule loaded...so removing it: [sgrubb@x2 noatime]$ time ./test noatime real 0m0.031s user 0m0.006s sys 0m0.024s [sgrubb@x2 noatime]$ time ./test noatime real 0m0.033s user 0m0.002s sys 0m0.032s [sgrubb@x2 noatime]$ time ./test noatime real 0m0.036s user 0m0.002s sys 0m0.031s [sgrubb@x2 noatime]$ time ./test atime real 0m0.023s user 0m0.001s sys 0m0.021s [sgrubb@x2 noatime]$ time ./test atime real 0m0.022s user 0m0.003s sys 0m0.019s [sgrubb@x2 noatime]$ time ./test atime real 0m0.023s user 0m0.002s sys 0m0.019s Without the audit rules, it is faster. But again opening with noatime attempted is measurably slower. -Steve -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
