linux-ext4 - Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation)

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Message-ID: <463504D7.7040002@rtr.ca>
Date:	Sun, 29 Apr 2007 16:49:27 -0400
From:	Mark Lord <lkml@....ca>
To:	Lee Revell <rlrevell@...-job.com>
Cc:	Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mike Galbraith <efault@....de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when
 FS is under heavy write load (massive starvation)

Lee Revell wrote:
> On 4/28/07, Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz> wrote:
>> I most wonder, why vim fsyncs its swapfile regularly (blocking typing
>> during that) and doesn't fsync the resulting file on :w  :-/
> 
> Never seen this.  Why would fsync block typing unless vim was doing
> disk IO for every keystroke?

It does do that, for the crash-recovery files it maintains.
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