linux-kernel - Re: [PATCH] Optimize wait_sb

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Message-ID: <20130627234521.GC22832@thunk.org>
Date:	Thu, 27 Jun 2013 19:45:21 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc:	Dave Chinner <david@...morbit.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	tux3@...3.org
Subject: Re: [PATCH] Optimize wait_sb_inodes()

On Fri, Jun 28, 2013 at 08:37:40AM +0900, OGAWA Hirofumi wrote:
> 
> Well, anyway, it is simple. This issue was came as the performance
> regression when I was experimenting to use kernel bdi flusher from own
> flusher. The issue was sync(2) like I said.  And this was just I
> couldn't solve this issue by tux3 side unlike other optimizations.

A performance regression using fsstress?  That's not a program
intended to be a useful benchmark for measuring performance.

	       	 		      - Ted
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