lkml.org 
[lkml]   [2004]   [Nov]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: Kernel memory requirements and BK
Art Haas wrote:

> With the 2.6.9 and 2.6.10-rc kernels, BK bombs out with
> out-of-memory errors once the repository checking begins.

There's nothing wrong with BK's performance that can't be
solved by a terahertz processor and a terabyte of RAM. ;)

But these patches might help:

===============================================================================
# vm_pages_scanned_active_list.patch
#
# Stop kswapd from looping.
#
# Patch by Nick Piggin 24 Oct 2004
# Signed-off-by: Andrew Morton <akpm@osdl.org>
# Signed-off-by: Linus Torvalds <torvalds@osdl.org>
# Status: in 2.6.10
#
--- 2.6.9/mm/vmscan.c
+++ 2.6.9.1/mm/vmscan.c
@@ -574,7 +574,6 @@ static void shrink_cache(struct zone *zo
nr_taken++;
}
zone->nr_inactive -= nr_taken;
- zone->pages_scanned += nr_taken;
spin_unlock_irq(&zone->lru_lock);

if (nr_taken == 0)
@@ -675,6 +674,7 @@ refill_inactive_zone(struct zone *zone,
}
pgscanned++;
}
+ zone->pages_scanned += pgscanned;
zone->nr_active -= pgmoved;
spin_unlock_irq(&zone->lru_lock);

===============================================================================
# spurious_oomkill.patch
#
# Prevent spurious out of memory process kills.
# Reported to work by testers on lkml.
#
# Patch by Rik van Riel <riel@redhat.com>
# Status: NOT in 2.6.10
#
--- 2.6.9/mm/vmscan.c
+++ 2.6.9.1/mm/vmscan.c
@@ -379,7 +379,7 @@

referenced = page_referenced(page, 1);
/* In active use or really unfreeable? Activate it. */
- if (referenced && page_mapping_inuse(page))
+ if (referenced && sc->priority && page_mapping_inuse(page))
goto activate_locked;

#ifdef CONFIG_SWAP
@@ -715,7 +715,7 @@
if (page_mapped(page)) {
if (!reclaim_mapped ||
(total_swap_pages == 0 && PageAnon(page)) ||
- page_referenced(page, 0)) {
+ (page_referenced(page, 0) && sc->priority)) {
list_add(&page->lru, &l_active);
continue;
}
===============================================================================
--Chuck Ebbert 06-Nov-04 23:55:23
-
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:0.033 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site