linux-kernel - 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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Date:	Sat, 28 Apr 2007 14:57:56 -0700
From:	Bill Huey (hui) <billh@...ppy.monkey.org>
To:	Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andreas Dilger <adilger@...sterfs.com>,
	Marat Buharov <marat.buharov@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mike Galbraith <efault@....de>,
	LKML <linux-kernel@...r.kernel.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	Alex Tomas <alex@...sterfs.com>,
	"Bill Huey (hui)" <billh@...ppy.monkey.org>
Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation)

On Sat, Apr 28, 2007 at 07:37:17AM +0200, Mikulas Patocka wrote:
> SpadFS doesn't write to unallocated parts like log filesystems (LFS) or 
> phase tree filesystems (TUX2); it writes inside normal used structures, 
> but it marks each structure with generation tags --- when it updates 
> global table of tags, it atomically makes several structures valid. I 
> don't know about this idea being used elsewhere.

So how is this generation structure organized ? paper ?

bill

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