0002320: Follow-up to Bug#2189 - Getting optimal performance in a virtualized environment

ID	Project	Category	View Status	Date Submitted	Last Update

0002320	CentOS-5	kernel	public	2007-09-07 09:37	2007-09-08 19:34

Reporter	toracat	Assigned To
Priority	normal	Severity	feature	Reproducibility	N/A
Status	closed	Resolution	won't fix
Product Version	5.0

Summary	0002320: Follow-up to Bug#2189 - Getting optimal performance in a virtualized environment
Description	From Bug#2189: "In 2.4 kernels the system timer was normally clocked at 100 Hz, while in 2.6 the default system timer is set to 1000 Hz (some other distros are not following these "rules", and USER_HZ is still 100). 1000 Hz is definately a good thing for desktop computers requiring fast interactive responses, but there are environments where this causes bad side effects. It would be a great benefit if a 100Hz unicpu kernel was made available in one of the CentOS repositories." We will continue the discussion in this bug report.
Tags	No tags attached.

toracat 2007-09-07 10:02 manager ~0005967	The last point of discussion in the original report was naming of the 100Hz kernel. It looks like the name "kernel-vm" is going to be used. Kernels running at 100Hz have been rebuilt for c4 and c5 using this new name. Thanks to danieldk for creating the spec file for c5. Both c4 and c5 kernels are temporarily available from: http://www.scripps.edu/mem/biochem/ayagi/centos/kernels/kernel-vm/ c5 is at 2.6.18-8.1.8 and the latest for c4 is 2.6.9-55.0.6. I have made these available for anyone who wishes to test before the official version is built by CentOS. Akemi

Date Modified	Username	Field	Change
2007-09-07 09:37	toracat	New Issue
2007-09-07 09:37	toracat	Status	new => assigned
2007-09-07 10:02	toracat	Note Added: 0005967
2007-09-08 19:34	kbsingh@karan.org	Relationship added	duplicate of 0002189
2007-09-08 19:34	kbsingh@karan.org	Status	assigned => closed
2007-09-08 19:34	kbsingh@karan.org	Resolution	open => won't fix