From: Vivek Goyal <vgoyal@redhat.com>
To: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Cc: Jens Axboe <axboe@kernel.dk>,
Justin TerAvest <teravest@google.com>,
"jmoyer@redhat.com" <jmoyer@redhat.com>,
Chad Talbott <ctalbott@google.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/6 v5.1] cfq-iosched: Introduce CFQ group hierarchical scheduling and "use_hierarchy" interface
Date: Sun, 27 Feb 2011 18:16:18 -0500 [thread overview]
Message-ID: <20110227231618.GA1014@redhat.com> (raw)
In-Reply-To: <4D670C14.9040504@cn.fujitsu.com>
On Fri, Feb 25, 2011 at 09:55:32AM +0800, Gui Jianfeng wrote:
> Vivek Goyal wrote:
> > On Wed, Feb 23, 2011 at 11:01:35AM +0800, Gui Jianfeng wrote:
> >> Hi
> >>
> >> I rebase this series on top of *for-next* branch, it will make merging life easier.
> >>
> >> Previously, I posted a patchset to add support of CFQ group hierarchical scheduling
> >> in the way that it puts all CFQ queues in a hidden group and schedules with other
> >> CFQ group under their parent. The patchset is available here,
> >> http://lkml.org/lkml/2010/8/30/30
> >
> > Gui,
> >
> > I was running some tests (iostest) with these patches and my system crashed
> > after a while.
> >
> > To be precise I was running "brrmmap" test of iostest.
>
> Vivek,
>
> I simply run iostest with brrmmap mode, I can't reproduce this bug.
> Would you give more details.
> Can you tell me the iostest command line options?
iostest /dev/dm-1 -G --nrgrp 4 -m 8 --cgtime --io_serviced --dequeue --total
I was actually trying to run all the workloads defined but after running
2 workloads it crashed on 3rd workload.
Now I tried to re-run brrmmap and it did not crash. So I am trying to run
all the inbuilt workloads again.
> Did you enable use_hierarchy in root group?
No I did not. Trying to test the flat setup first.
Thanks
Vivek
next prev parent reply other threads:[~2011-02-27 23:16 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4D61FE91.60705@cn.fujitsu.com>
2011-02-21 6:09 ` [PATCH 0/6 v5] cfq-iosched: Introduce CFQ group hierarchical scheduling and "use_hierarchy" interface Gui Jianfeng
2011-02-23 3:01 ` [PATCH 0/6 v5.1] " Gui Jianfeng
2011-02-23 3:07 ` [PATCH 1/6 v5.1] cfq-iosched: Introduce cfq_entity for CFQ queue Gui Jianfeng
2011-02-23 3:08 ` [PATCH 2/6 v5.1] cfq-iosched: Introduce cfq_entity for CFQ group Gui Jianfeng
2011-02-23 3:08 ` [PATCH 3/6 v5.1] cfq-iosched: Introduce vdisktime and io weight for CFQ queue Gui Jianfeng
2011-02-23 3:09 ` [PATCH 4/6 v5.1] cfq-iosched: Extract some common code of service tree handling for CFQ queue and CFQ group Gui Jianfeng
2011-02-23 3:10 ` [PATCH 5/6 v5.1] cfq-iosched: CFQ group hierarchical scheduling and use_hierarchy interface Gui Jianfeng
2011-02-23 3:10 ` [PATCH 6/6 v5.1] blkio-cgroup: Document for blkio.use_hierarchy interface Gui Jianfeng
2011-02-24 18:11 ` [PATCH 0/6 v5.1] cfq-iosched: Introduce CFQ group hierarchical scheduling and "use_hierarchy" interface Vivek Goyal
2011-02-25 1:55 ` Gui Jianfeng
2011-02-27 23:16 ` Vivek Goyal [this message]
2011-02-28 0:15 ` Vivek Goyal
2011-02-28 9:34 ` Gui Jianfeng
2011-03-02 10:00 ` Gui Jianfeng
2011-03-04 4:34 ` Gui Jianfeng
2011-03-04 19:14 ` Vivek Goyal
2011-03-05 5:16 ` Gui Jianfeng
2011-03-07 14:28 ` Vivek Goyal
2011-03-07 18:07 ` Justin TerAvest
2011-02-21 6:10 ` [PATCH 1/6 v5] cfq-iosched: Introduce cfq_entity for CFQ queue Gui Jianfeng
2011-02-21 6:11 ` [PATCH 2/6 v5] cfq-iosched: Introduce cfq_entity for CFQ group Gui Jianfeng
2011-02-21 6:13 ` [PATCH 3/6 v5] cfq-iosched: Introduce vdisktime and io weight for CFQ queue Gui Jianfeng
2011-02-21 6:15 ` [PATCH 4/6 v5] cfq-iosched: Extract some common code of service tree handling for CFQ queue and CFQ group Gui Jianfeng
2011-02-21 6:16 ` [PATCH 5/6 v5] cfq-iosched: CFQ group hierarchical scheduling and use_hierarchy interface Gui Jianfeng
2011-02-21 6:17 ` [PATCH 6/6 v5] blkio-cgroup: Document for blkio.use_hierarchy interface Gui Jianfeng
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