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SubjectRe: [RFC v3 00/13] vfs: hot data tracking
On Wed, Oct 17, 2012 at 04:57:14PM +0800, Zhi Yong Wu wrote:
> On Tue, Oct 16, 2012 at 4:42 AM, Dave Chinner <david@fromorbit.com> wrote:
> > On Wed, Oct 10, 2012 at 06:07:22PM +0800, zwu.kernel@gmail.com wrote:
> >> From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
....
> > (*) 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.

Cheers,

Dave.

--
Dave Chinner
david@fromorbit.com


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