Re: /proc/sys/vm/freepages not writable.

From: Rik van Riel (riel@conectiva.com.br)
Date: Sun Sep 17 2000 - 12:35:42 EST

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On Sun, 17 Sep 2000, Patrick Mau wrote:

> I compiled kernel 2.4.0test9-pre1 (kernel names are a real mess
> these days ...) and noticed that /proc/sys/vm/freepages is no
> longer writable:
>
> [root@oscar] ll /proc/sys/vm/freepages
> -r--r--r-- 1 root root 0 Sep 17 02:25 /proc/sys/vm/freepages
>
> If this was intentional, why has it changed ?

It was intentional. Writing to this file hasn't worked well
since 2.3.50 or so, when the zoned VM was merged.

Also, the fact that the new VM keeps a list of directly
reclaimable inactive pages around that varies according
to the amount of VM activity should make tweaking this
value no longer needed...

regards,

Rik

-- "What you're running that piece of shit Gnome?!?!" -- Miguel de Icaza, UKUUG 2000

http://www.conectiva.com/ http://www.surriel.com/

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