Hi Mihai, On 20.08.2013, Mihai T. Lazarescu wrote: > Thanks for the pointer. I add to the mix my test results for > F19 with kernel 3.10.7 on an ASUS UX31E with its factory 256GB > SSD-only mass storage. > > CFQ scheduler run1: [....] All these numbers are pointless, because when I see your results I'm quite shure you did run the test without generating loads of disk I/O in parallel. What you actually measured is the latency in idle state ;-) Open a console and run while : ; do time sh -c "dd if=/dev/zero of=bigfile bs=8M count=256 ; sync; rm bigfile"; done Then, open another one and run fsync-tester. The numbers that count to compare different elevators on your system is the output fsync-tester generates while your machine is generating the "bigfile". -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org