Messages in this thread | | | Date | Wed, 29 Jun 2011 16:04:42 -0400 | From | Vivek Goyal <> | Subject | Re: [PATCH 0/8][V2] blk-throttle: Throttle buffered WRITEs in balance_dirty_pages() |
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On Wed, Jun 29, 2011 at 06:05:32PM +0200, Andrea Righi wrote:
[..] > > > Have you tried to do some tests? (i.e. create multiple cgroups with very > > > low I/O limit doing parallel O_DIRECT WRITEs, and try to run at the same > > > time "ls" or other simple commands from the root cgroup or unlimited > > > cgroup). > > > > I did. On ext4, I created a cgroup with limit 1byte per second and > > started a direct write and did "ls", "sync" and some directory traversal > > operations in same diretory and it seems to work. > > Confirm. Everything seems to work fine also on my side. > > Tested-by: Andrea Righi <andrea@betterlinux.com> > > FYI, I've used the following script to test it if you're interested. > I tested both with O_DIRECT=1 and O_DIRECT=0.
Thanks for testing these patches. This script looks good. Will save it.
Thanks Vivek
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