[lkml]   [2004]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 2.4.23aa2 (bugfixes and important VM improvements for the high end)
On Thu, 4 Mar 2004, Andrea Arcangeli wrote:
> On Wed, Mar 03, 2004 at 08:07:04PM -0800, Andrew Morton wrote:

> > A kernel profile would be interesting. As would an optimisation effort,
> > which, as far as I know, has never been undertaken.
> yes, though I doubt you'll find anything interesting in the kernel,

Oh, but there is a big bottleneck left, at least in RHEL3.

All the CPUs use the _same_ mm_struct in kernel space, so
all VM operations inside the kernel are effectively single

Ingo had a patch to fix that, but it wasn't ready in time.
Maybe it is in the 2.6 patch set, maybe not ...

"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

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 14:01    [W:0.183 / U:0.112 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site