From: Nick Piggin <piggin@cyberone.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: cw@f00f.org, mfedyk@matchmail.com, torvalds@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: Large slab cache in 2.6.1
Date: Mon, 23 Feb 2004 12:06:47 +1100 [thread overview]
Message-ID: <40395227.9030606@cyberone.com.au> (raw)
In-Reply-To: <20040222170032.0219ea67.akpm@osdl.org>
Andrew Morton wrote:
>Nick Piggin <piggin@cyberone.com.au> wrote:
>
>>
>>>yep.
>>>
>>>
>>>
>>Yeah this is good. I thought the patch you were proposing was
>>to shrink slab on highmem pressure.
>>
>
>That as well.
>
>
Well this is the complexity I'm talking about. Sure it
is actually "simpler" code wise, but you're making it
conceptually more complex.
>>Apply some lowmem pressure due to highmem pressure THEN shrink
>>slab as a result of the lowmem pressure is much better.
>>
>
>Prove it to me ;)
>
>
Your slab wasn't being shrunk because the slab pressure
calculation was way off for highmem systems. My patch fixed
that, so lowmem pressure should shrink slab properly.
Then with your patch, highmem pressure will apply lowmem
pressure. So the end result is that the slab gets appropriate
pressure.
Can't you just prove to me why that doesn't work? ;)
next prev parent reply other threads:[~2004-02-23 1:06 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-22 0:50 Large slab cache in 2.6.1 Mike Fedyk
2004-02-22 1:09 ` Mike Fedyk
2004-02-22 1:20 ` William Lee Irwin III
2004-02-22 2:03 ` Mike Fedyk
2004-02-22 2:17 ` William Lee Irwin III
2004-02-22 2:38 ` Nick Piggin
2004-02-22 2:46 ` William Lee Irwin III
2004-02-22 2:40 ` Mike Fedyk
2004-02-22 2:58 ` Nick Piggin
2004-02-22 2:33 ` Nick Piggin
2004-02-22 2:46 ` Nick Piggin
2004-02-22 2:54 ` Nick Piggin
2004-02-22 2:36 ` Chris Wedgwood
2004-02-22 3:03 ` Linus Torvalds
2004-02-22 3:11 ` Chris Wedgwood
2004-02-22 3:28 ` Linus Torvalds
2004-02-22 3:29 ` Chris Wedgwood
2004-02-22 3:31 ` Chris Wedgwood
2004-02-22 4:01 ` Nick Piggin
2004-02-22 4:10 ` Nick Piggin
2004-02-22 4:30 ` Nick Piggin
2004-02-22 4:41 ` Mike Fedyk
2004-02-22 5:37 ` Nick Piggin
2004-02-22 5:44 ` Chris Wedgwood
2004-02-22 5:52 ` Nick Piggin
2004-02-22 5:50 ` Mike Fedyk
2004-02-22 6:01 ` Nick Piggin
2004-02-22 6:17 ` Andrew Morton
2004-02-22 6:35 ` Nick Piggin
2004-02-22 6:57 ` Andrew Morton
2004-02-22 7:20 ` Nick Piggin
2004-02-22 8:36 ` Chris Wedgwood
2004-02-22 9:13 ` Andrew Morton
2004-02-23 0:16 ` Nick Piggin
2004-02-23 0:26 ` Andrew Morton
2004-02-23 0:34 ` Nick Piggin
2004-02-23 0:46 ` Andrew Morton
2004-02-23 0:54 ` Nick Piggin
2004-02-23 1:00 ` Andrew Morton
2004-02-23 1:06 ` Nick Piggin [this message]
2004-02-22 6:45 ` Mike Fedyk
2004-02-22 6:58 ` Nick Piggin
2004-02-22 7:20 ` Mike Fedyk
2004-02-22 6:09 ` Andrew Morton
2004-02-22 17:05 ` Linus Torvalds
2004-02-23 0:29 ` Nick Piggin
2004-02-22 6:15 ` Andrew Morton
2004-02-22 16:08 ` Martin J. Bligh
2004-02-22 17:55 ` Jamie Lokier
2004-02-23 3:45 ` Mike Fedyk
2004-02-22 21:13 ` Dipankar Sarma
2004-02-22 14:03 ` Ed Tomlinson
2004-02-23 2:28 ` Mike Fedyk
2004-02-23 3:33 ` Ed Tomlinson
2004-02-22 3:21 ` Mike Fedyk
-- strict thread matches above, loose matches on Subject: below --
2004-02-22 11:00 Manfred Spraul
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