Hi Yan, Yesterday Yan Li wrote:
> Tobi, your testing and results are great and very useful. It would be > better if you can run those tests on ext4. Thank you. I have now also put ext4 through the paces ... its overall behaviour seems to be that same than with ext3, the same settings render the best performance. Overall, the single reader scenario seems to suffer a performance drop of 20% to 30% while the three reader scenario gains about 30%. Large maximum latencies have become bigger if anything. I have updated the report on http://insights.oetiker.ch/linux/fsopbench/ including the detailed results ... The cfq scheduler seems todo a pretty good job at being fair. The main problem (no one seems to be talking about) in my eyes, is the hangups, where suddently an mkdir call takes up 19 seconds to complete. This makes all the rest seem like minor issues. cheers tobi -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch [email protected] ++41 62 775 9902 / sb: -9900 -- Heavy Disk I/O harms desktop responsiveness https://bugs.launchpad.net/bugs/131094 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
