Re: Memory compression (again). . help?

[John Richard Moser <nigelenki@comcast.net>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



Magnus Damm wrote:
> On 2/28/06, John Richard Moser <nigelenki@comcast.net> wrote:
>> Hmm, I can't see where the kernel checks to see which pages are least
>> used. . . . anyone good with the VM can point me in the right direction?
> 
> The page reclaim code responsible for shrinking the LRUs code be found
> in mm/vmscan.c. That file contains a lot of code, my recommendation to
> you is to have a look at shrink_zone() which is responsible for
> rotating and shrinking the active and inactive lists.
> 

Thanks, I'll take a look.

> Also, If you want to compress pages that normally would be swapped
> out, then I recommend you to have a look at the functions in
> mm/swap_state.c and see how swap space gets allocated and freed.
> 

Mm.  Ok.

> If you need to know more about the Linux VM then I recommend you to
> buy the excellent book "Understanding the Linux Virtual Memory
> Manager" written by Mel Gorman, ISBN 0-13-145348-3. My copy of that
> book covers Linux-2.4 and has some comments about 2.6 too.
> 

I'll shoot from the hip, my foot grows back.

> / magnus
> 

- --
All content of all messages exchanged herein are left in the
Public Domain, unless otherwise explicitly stated.

    Creative brains are a valuable, limited resource. They shouldn't be
    wasted on re-inventing the wheel when there are so many fascinating
    new problems waiting out there.
                                                 -- Eric Steven Raymond

    We will enslave their women, eat their children and rape their
    cattle!
                                     -- Evil alien overlord from Blasto
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.1 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFEBDzdhDd4aOud5P8RApCXAKCASRwqJqXD/8rHh84x3tzkntC6jQCeMeqS
9B7IgG3aCEJOOXrOsxSMp3o=
=ZLh3
-----END PGP SIGNATURE-----