Hi, Thank you for the report.
Unfortunately, when I measured dbench in my latest kernel, there was no regression wrt the patch that you found. Kernel: 3.14-rc3 with latest f2fs source codes HW: Intel i5 OS: Ubuntu 12.10 x64 Test: dbench -D /mnt/test -t 6 6 -c ./client.txt The results showed: - ext4 : 203 MB/s - f2fs : 318 MB/s So, could you share the exact configuration of your dbench? And, if possible, could you share the numbers of the following tests in your environment? 1. ext4 2. the latest f2fs from dev branch 3. modified f2fs from the latest f2fs : fs/f2fs/file.c 118 .sync_mode = WB_SYNC_ALL; 4. modified f2fs from the latest f2fs : fs/f2fs/node.c 1221 wbc->sync_mode = WB_SYNC_ALL; 5. modified f2fs with #3 and #4 changes together Thank you very much. :) 2014-02-27 (목), 19:02 +0400, Alex: > Hello, > > After reading phoronix's f2fs benchmarks > http://www.phoronix.com/scan.php?page=article&item=linux_314_ssdfs&num=2 (3rd > picture) did kernel bisect and it resulted in this commit > https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=fb5566da > . > > PS Tried the latest tree from f2fs dev branch with the same results > https://git.kernel.org/cgit/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=695fd1ed > . > > ------------------------------------------------------------------------------ > Flow-based real-time traffic analytics software. Cisco certified tool. > Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer > Customize your own dashboards, set traffic alerts and generate reports. > Network behavioral analysis & security monitoring. All-in-one tool. > http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel -- Jaegeuk Kim Samsung ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
