[lkml]   [2001]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Break 2.4 VM in five easy steps
On 05 Jun 2001 23:19:08 -0400, Derek Glidden wrote:
> On Wed, Jun 06, 2001 at 12:16:30PM +1000, Andrew Morton wrote:
> > "Jeffrey W. Baker" wrote:
> > >
> > > Because the 2.4 VM is so broken, and
> > > because my machines are frequently deeply swapped,
> >
> > The swapoff algorithms in 2.2 and 2.4 are basically identical.
> > The problem *appears* worse in 2.4 because it uses lots
> > more swap.
> I disagree with the terminology you're using. It *is* worse in 2.4,
> period. If it only *appears* worse, then if I encounter a situation
> where a 2.2 box has utilized as much swap as a 2.4 box, I should see the
> same results. Yet this happens not to be the case.

Did you try to put twice as much swap as you have RAM ? (e.g. add a 512M
swapfile to your box)
This is what Linus recommended for 2.4 (swap = 2 * RAM), saying that
anything less won't do any good: 2.4 overallocates swap even if it
doesn't use it all. So in your case you just have enough swap to map
your RAM, and nothing to really swap your apps.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:54    [W:0.299 / U:0.588 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site