FS#1789 - Kernel 2.6.9: IO Scheduler (kswapd) hogs CPU

Attached to Project: Arch Linux
Opened by Leslie Polzer (skypher) - Monday, 15 November 2004, 08:23 GMT
Task Type Bug Report
Category Packages: Current
Status Closed
Assigned To No-one
Architecture not specified
Severity High
Priority Normal
Reported Version 0.7 Wombat
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 0
Private No

Details

With 2.6.9 UT2004 (and probably other CPU-intensive stuff) gets only half the CPU time because kswapd is going crazy.
A patch from Con Koliva fixed this for me:

http://ck.kolivas.org/patches/2.6/2.6.9/2.6.9-ck2/patches/vm-pages_scanned-active_list.patch

"+vm-pages_scanned-active_list.patch A nasty bug that caused kswapd to get stuck consuming heaps of cpu which was in mainline 2.6.9 was tracked down by some of my users (thanks!) and fixed by Nick Piggin (thanks!)."

Maybe this should be applied to the stock kernel package in Arch.
This task depends upon

Closed by  Judd Vinet (judd)
Monday, 03 January 2005, 20:15 GMT
Reason for closing:  Fixed

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