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Message-Id: <1218100139.8625.7.camel@twins>
Date: Thu, 07 Aug 2008 11:08:59 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Chris Mason <chris.mason@...cle.com>
Cc: linux-btrfs <linux-btrfs@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: Btrfs v0.16 released
On Tue, 2008-08-05 at 15:01 -0400, Chris Mason wrote:
> * Fine grained btree locking. The large fs_mutex is finally gone.
> There is still some work to do on the locking during extent allocation,
> but the code is much more scalable than it was.
Cool - will try to find a cycle to stare at the code ;-)
> * Helper threads for checksumming and other background tasks. Most CPU
> intensive operations have been pushed off to helper threads to take
> advantage of SMP machines. Streaming read and write throughput now
> scale to disk speed even with checksumming on.
Can this lead to the same Priority Inversion issues as seen with
kjournald?
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