Bug 188598

Summary:	Prevent excessive cpu wakeup cycles from NTP effectivly preventing CPU sleep states
Product:	Gentoo Linux	Reporter:	Phillip Lemon <lucidcomms>
Component:	New packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED DUPLICATE
Severity:	enhancement
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	NTP Sleep patch from Redhat, FC7 / Linux Powertop Update ebuild to use ntp-sleep.patch

Description Phillip Lemon 2007-08-12 15:02:14 UTC

By default, the ntp time synchronization daemon will wake up once per second, and will make the kernel do work on it's behalf even more. Red Hat has created a patch to ntp to fix this issue and ships it in their rawhide and FC7 ntp packages.

Reproducible: Always

Steps to Reproduce:
1.Install ntp
2.Intall powertop
3.Observe runtime analysis

Comment 1 Jakub Moc (RETIRED) gentoo-dev

2007-08-12 15:04:13 UTC


*** This bug has been marked as a duplicate of bug 179292 ***

Comment 2 Phillip Lemon 2007-08-12 15:04:45 UTC

Created attachment 127871 [details, diff]
NTP Sleep patch from Redhat, FC7 / Linux Powertop

Comment 3 Phillip Lemon 2007-08-12 15:05:14 UTC

Created attachment 127872 [details, diff]
Update ebuild to use ntp-sleep.patch