lkml.org 
[lkml]   [2004]   [Oct]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: ZONE_PADDING wastes 4 bytes of the new cacheline
On Thu, Oct 21, 2004 at 08:26:56PM -0700, Andrew Morton wrote:
> Well yes, I spose the answer as always is "show me a testcase". But the

I already gave you a testcase ages ago. Pretty simple. Get your hands on
a 2G box. boot, swapoff -a, load 1G in pagecache. malloc 1G, bzero 1G,
then open some dozen thousand files until the machine deadlocks despite
1G is perfcetly freeable in highmem.

> Any halfway setting will screw everyone.

this stuff run in production for 2 years at least, if anyone would be
screwed I'd already know. The only thing I know is that I've oom
deadlocks in my queue of bugs, and we'll see if this fixes them, it's
hard to tell since I don't know how much lowmem is pinned by highmem
capable allocs (like pagetables!).
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:07    [W:0.101 / U:6.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site