lkml.org 
[lkml]   [2005]   [Jul]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Kernel cached memory
Paolo Ornati wrote:

>On Mon, 25 Jul 2005 12:47:50 -0400
>Bill Davidsen <davidsen@tmr.com> wrote:
>
>
>
>>And IMHO Linux is *way* too willing to evicy clean pages of my
>>programs to use as disk buffer, so that when system memory is full I
>>pay the overhead of TWO disk i/o's, one to finally write the data to
>>the disk and one to read my program back in. If free software is
>>about choice, I wish there was more in the area of how memory is
>>used.
>>
>>
>
>isn't this tuned enough by "/proc/sys/vm/swappiness" ?
>
>
>
Let me generate some data points for discussion. But the general answer
is no, I just want to try to have some numbers to discuss. I also want
to go back to some 2.4.xx-aa kernels, Andrea had some very nice things
in his bdflush code, and he was kind enough to explain to me how to tune
them so I avoided the worst case events.

--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-07-25 19:56    [W:0.043 / U:0.808 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site