Keeping the 'cached' memory under control

Keeping the 'cached' memory under control

[monkeyiq]

Hi,
  Please CC me as Im not on the list atm.

  I had moved from using 2.4.5 to using the Alan Cox tree but
had recently moved back to raw 2.4.9. In doing this I noticed
that the VM in the Linus standard tree seems to chomp heaps of
RAM for cache and not give it back. This is a very painful 
thing having 200Mb showing in free as cached and 150Mb in swap,
with 4Mb free. It means that I must play games to get enough RAM
free to play a DVD without jerkyness of paging. 

  To keep this email short, I want to play with XFS and I want to
have a machine that is not paging whenever I move the mouse, If
anyone knows of patches for XFS for recent ac kernels I'l love to 
know. And if anyone has info on tuneing the VM to not hoard all the
memory in standard trees I'd like to know.

  Also my special internet keys didn't work on the ac tree from my
USB keyboard but using the same .config work fine in 2.4.9 anyone
experienced a similar thing? This is with vmlinuz-2.4.7-ac9 and some
2.4.8-ac kernels that I've tried.

Thanks, and sorry if these are pesky FAQs, but I couldn't find much
in the archive search about these, well, the first two anyway :/.
 
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Re: Keeping the 'cached' memory under control

[Alan Cox]

>   Also my special internet keys didn't work on the ac tree from my
> USB keyboard but using the same .config work fine in 2.4.9 anyone
> experienced a similar thing? This is with vmlinuz-2.4.7-ac9 and some
> 2.4.8-ac kernels that I've tried.

The -ac tree has a newer input device layer so check you have the hid not
hidbp based modules loaded  and report it to the input device maintainer