From: Nick Piggin <piggin@cyberone.com.au>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Andrew Morton <akpm@osdl.org>, linux-mm@kvack.org, Nikita@Namesys.COM
Subject: Re: [BENCHMARKS] Namesys VM patches improve kbuild
Date: Fri, 23 Jan 2004 10:32:03 +1100 [thread overview]
Message-ID: <40105D73.3070202@cyberone.com.au> (raw)
In-Reply-To: <20040122081623.GL1016@holomorphy.com>
William Lee Irwin III wrote:
>On Thu, Jan 22, 2004 at 06:19:01PM +1100, Nick Piggin wrote:
>
>>Hmm, I actually did misread it a bit. The ratio is:
>>nr_pages * zone->nr_active / (zone->nr_inactive * 2)
>>Which is nr_pages if the active list is size we want.
>>So its not so bad as I thought. Scaling by nr_pages would
>>seem to couple it strongly with free pages though. My
>>patch makes it more independent. No I don't know if thats
>>good or not, it would obviously need a lot of testing.
>>
>
>Could something symbolic be banged out to represent this "desired
>(in)active_list size" to reduce confusion? You're not the only one
>needing to review various calculations twice over or more at every
>turn.
>
That probably would help. I still don't like the ratio that much
but I guess it works. I'll see if I can get any improvements out
of my version.
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next prev parent reply other threads:[~2004-01-22 23:32 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-22 5:43 [BENCHMARKS] Namesys VM patches improve kbuild Nick Piggin
2004-01-22 6:36 ` Andrew Morton
2004-01-22 6:54 ` Nick Piggin
2004-01-22 7:04 ` Andrew Morton
2004-01-22 7:19 ` Nick Piggin
2004-01-22 8:16 ` William Lee Irwin III
2004-01-22 23:32 ` Nick Piggin [this message]
2004-01-22 10:35 ` Nikita Danilov
2004-01-22 23:01 ` Nick Piggin
2004-01-23 10:29 ` Nikita Danilov
2004-01-23 12:28 ` Nick Piggin
2004-01-23 15:09 ` Nick Piggin
2004-01-23 15:40 ` Nikita Danilov
2004-01-24 1:07 ` Nick Piggin
2004-01-26 11:19 ` Nikita Danilov
2004-01-26 11:25 ` Nick Piggin
2004-01-26 12:14 ` Nikita Danilov
2004-01-30 3:48 ` Nick Piggin
2004-01-30 3:56 ` Andrew Morton
2004-01-30 12:00 ` Nikita Danilov
2004-01-23 7:16 ` Nick Piggin
2004-01-23 9:42 ` Nikita Danilov
2004-01-23 12:15 ` Nick Piggin
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