From: Nick Piggin <npiggin@kernel.dk>
To: Nick Piggin <npiggin@kernel.dk>
Cc: Dave Chinner <david@fromorbit.com>,
Nick Piggin <npiggin@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Eric Dumazet <eric.dumazet@gmail.com>,
Al Viro <viro@zeniv.linux.org.uk>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [patch 1/6] fs: icache RCU free inodes
Date: Wed, 17 Nov 2010 17:04:06 +1100 [thread overview]
Message-ID: <20101117060406.GA3928@amd> (raw)
In-Reply-To: <20101117055633.GA3861@amd>
On Wed, Nov 17, 2010 at 04:56:33PM +1100, Nick Piggin wrote:
> So there. I re state my case. I have put up the numbers, and I have
> shown that even worst cases is not the end of the world. I don't know
> why I've had to repeat it so many times, but honestly at this point I've
> done enough. The case is closed until any *actual* significant numbers
> to the contrary turn up.
Same goes for per-zone LRUs, FWIW.
You can't ask submitter of every single change to prove a negative.
At some point you have to move on with life and accept that regressions
are inevitable, performance regressions are inevitable, and that we have
a development model that is well geared by now to tolerate and resolve
regressions.
next prev parent reply other threads:[~2010-11-17 6:04 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-09 12:46 [patch 1/6] fs: icache RCU free inodes Nick Piggin
2010-11-09 12:47 ` [patch 2/6] fs: icache avoid RCU freeing for pseudo fs Nick Piggin
2010-11-09 12:58 ` [patch 3/6] fs: dcache documentation cleanup Nick Piggin
2010-11-09 16:24 ` Christoph Hellwig
2010-11-09 22:06 ` Nick Piggin
2010-11-10 16:27 ` Christoph Hellwig
2010-11-09 13:01 ` [patch 4/6] fs: d_delete change Nick Piggin
2010-11-09 16:25 ` Christoph Hellwig
2010-11-09 22:08 ` Nick Piggin
2010-11-10 16:32 ` Christoph Hellwig
2010-11-11 0:27 ` Nick Piggin
2010-11-11 22:07 ` Linus Torvalds
2010-11-09 13:02 ` [patch 5/6] fs: d_compare change for rcu-walk Nick Piggin
2010-11-09 16:25 ` Christoph Hellwig
2010-11-10 1:48 ` Nick Piggin
2010-11-09 13:03 ` [patch 6/6] fs: d_hash " Nick Piggin
2010-11-09 14:19 ` [patch 1/6] fs: icache RCU free inodes Andi Kleen
2010-11-09 21:36 ` Nick Piggin
2010-11-10 14:47 ` Andi Kleen
2010-11-11 4:27 ` Nick Piggin
2010-11-09 16:02 ` Linus Torvalds
2010-11-09 16:21 ` Christoph Hellwig
2010-11-09 21:48 ` Nick Piggin
2010-11-09 16:21 ` Eric Dumazet
2010-11-09 17:08 ` Linus Torvalds
2010-11-09 17:15 ` Christoph Hellwig
2010-11-09 21:55 ` Nick Piggin
2010-11-09 22:05 ` Nick Piggin
2010-11-12 1:24 ` Nick Piggin
2010-11-12 4:48 ` Linus Torvalds
2010-11-12 6:02 ` Nick Piggin
2010-11-12 6:49 ` Nick Piggin
2010-11-12 17:33 ` Linus Torvalds
2010-11-12 23:17 ` Nick Piggin
2010-11-15 1:00 ` Dave Chinner
2010-11-15 4:21 ` Nick Piggin
2010-11-16 3:02 ` Dave Chinner
2010-11-16 3:49 ` Nick Piggin
2010-11-17 1:12 ` Dave Chinner
2010-11-17 4:18 ` Nick Piggin
2010-11-17 5:56 ` Nick Piggin
2010-11-17 6:04 ` Nick Piggin [this message]
2010-11-09 21:44 ` Nick Piggin
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