[lkml]   [2000]   [Sep]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Very aggressive swapping after 2 hours rest
On Sun, 17 Sep 2000, Andrea Arcangeli wrote:
> On Sun, Sep 17, 2000 at 02:33:48PM -0300, Rik van Riel wrote:
> > If you have a better idea for memory management, I'd
> > like to hear it ;)
> You know 2.4.0-test1-ac22-class++ beaten 2.4.0-test1-ac22-riel++
> under low memory scenario, right?

Btw, do you know /why/ this was the case?

I have a strong hunch this was because you moved some swap-out
pages out of the way of the rest of the pages on the LRU list.

The new VM, as integrated in -test9-pre1, does the same thing,
only for a lot more cases than your classzone patch did, achieving
the same effect, only stronger and effective in more different

Add to that page aging, and the drop-behind code that makes it
possible to do streaming IO without putting memory pressure on
the working set ....

(well, not in all cases ... drop_behind() and read-ahead don't
work for mmap() yet)


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

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

 \ /
  Last update: 2005-03-22 12:38    [W:0.137 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site