Re: [RFC v3 00/13] vfs: hot data tracking
From: Dave Chinner <david@fromorbit.com>
Date: 2012-10-18 05:17:40
Also in:
linux-btrfs, linux-fsdevel, lkml
On Thu, Oct 18, 2012 at 12:44:47PM +0800, Zhi Yong Wu wrote:
On Thu, Oct 18, 2012 at 12:29 PM, Dave Chinner [off-list ref] wrote:quoted
On Wed, Oct 17, 2012 at 04:57:14PM +0800, Zhi Yong Wu wrote:quoted
On Tue, Oct 16, 2012 at 4:42 AM, Dave Chinner [off-list ref] wrote:quoted
On Wed, Oct 10, 2012 at 06:07:22PM +0800, zwu.kernel@gmail.com wrote:quoted
From: Zhi Yong Wu <redacted>....quoted
quoted
(*) Tested on an empty 17TB XFS filesystem with: $ sudo mkfs.xfs -f -l size=131072b,sunit=8 /dev/vdc meta-data=/dev/vdc isize=256 agcount=17, agsize=268435455 blks = sectsz=512 attr=2, projid32bit=0 data = bsize=4096 blocks=4563402735, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal log bsize=4096 blocks=131072, version=2 = sectsz=512 sunit=1 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 $ sudo mount -o logbsize=256k /dev/vdc /mnt/scratch $ sudo chmod 777 /mnt/scratch $ fs_mark -D 10000 -S0 -n 100000 -s 1 -L 63 -d \ /mnt/scratch/0 -d /mnt/scratch/1 -d /mnt/scratch/2 -d \ /mnt/scratch/3 -d /mnt/scratch/4 -d /mnt/scratch/5 -d \ /mnt/scratch/6 -d /mnt/scratch/7 ..... 0 21600000 1 16679.3 12552262 0 22400000 1 15412.4 12588587 0 23200000 1 16367.6 14199322 0 24000000 1 15680.4 15741205 <hangs here w/ OOM>^^^^In this test, i haven't see you enable hot_track function via mount, why did it meet OOM?I copied the wrong mount command. It was definitely enabled.OK, BTW: fs_mark is the script written by you? After xfsprogs is installed, i haven't found this command.
# apt-get install fsmark Or get the source here: http://sourceforge.net/projects/fsmark/ Cheers, Dave. -- Dave Chinner david@fromorbit.com