linux-kernel - Re: [PATCH 0/6] buffered write IO controller in balance_dirty

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Message-ID: <20120328211017.GF3376@redhat.com>
Date:	Wed, 28 Mar 2012 17:10:18 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	Linux Memory Management List <linux-mm@...ck.org>,
	Suresh Jayaraman <sjayaraman@...e.com>,
	Andrea Righi <andrea@...terlinux.com>,
	Jeff Moyer <jmoyer@...hat.com>, linux-fsdevel@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/6] buffered write IO controller in balance_dirty_pages()

On Wed, Mar 28, 2012 at 08:13:08PM +0800, Fengguang Wu wrote:
> 
> Here is one possible solution to "buffered write IO controller", based on Linux
> v3.3
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux.git  buffered-write-io-controller
> 
> Features:
> - support blkio.weight

So this does proportional write bandwidth division on bdi for buffered
writes?

> - support blkio.throttle.buffered_write_bps

This is absolute limit systemwide or per bdi?

[..]
> The test results included in the last patch look pretty good in despite of the
> simple implementation.
> 
>  [PATCH 1/6] blk-cgroup: move blk-cgroup.h in include/linux/blk-cgroup.h
>  [PATCH 2/6] blk-cgroup: account dirtied pages
>  [PATCH 3/6] blk-cgroup: buffered write IO controller - bandwidth weight
>  [PATCH 4/6] blk-cgroup: buffered write IO controller - bandwidth limit
>  [PATCH 5/6] blk-cgroup: buffered write IO controller - bandwidth limit interface
>  [PATCH 6/6] blk-cgroup: buffered write IO controller - debug trace
> 

Hi Fengguang,

Only patch 0 and patch 4 have shown up in my mail box. Same seems to be
the case for lkml. I am wondering what happened to rest of the patches.

Will understand the patches better once I have the full set.

Thanks
Vivek
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