Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem

• To: "Rik van Riel" <[email protected]>
• Subject: Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
• From: "yunfeng zhang" <[email protected]>
• Date: Sun, 25 Feb 2007 09:47:41 +0800
• Cc: [email protected], "Hugh Dickins" <[email protected]>, [email protected]
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• In-reply-to: <[email protected]>
• References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
• Sender: [email protected]

To a two-CPU architecture, its page distribution just like theoretically

ABABAB....

So every readahead of A process will create 4 unused readahead pages unless you
are sure B will resume soon.

Have you ever compared the results among UP, 2 or 4-CPU?
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• References:
  • [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: "yunfeng zhang" <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: Hugh Dickins <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: "yunfeng zhang" <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: "yunfeng zhang" <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: "yunfeng zhang" <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: Rik van Riel <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: "yunfeng zhang" <[email protected]>
  • Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
    • From: Rik van Riel <[email protected]>

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