linux-kernel - Re: [PATCH 9/9] writeback: trace global_dirty

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Message-ID: <20110701151801.GA6661@infradead.org>
Date:	Fri, 1 Jul 2011 11:18:01 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	linux-fsdevel@...r.kernel.org, Jan Kara <jack@...e.cz>,
	Dave Chinner <david@...morbit.com>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 9/9] writeback: trace global_dirty_state

On Wed, Jun 29, 2011 at 10:52:54PM +0800, Wu Fengguang wrote:
> Add trace event balance_dirty_state for showing the global dirty page
> counts and thresholds at each global_dirty_limits() invocation.  This
> will cover the callers throttle_vm_writeout(), over_bground_thresh()
> and each balance_dirty_pages() loop.

Given that this is a rather uncontoversial diagnostics patch I'd
move it to the front of the queue.

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