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Bug 188598 - Prevent excessive cpu wakeup cycles from NTP effectivly preventing CPU sleep states
Summary: Prevent excessive cpu wakeup cycles from NTP effectivly preventing CPU sleep ...
Status: RESOLVED DUPLICATE of bug 179292
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: New packages (show other bugs)
Hardware: All Linux
: High enhancement (vote)
Assignee: Gentoo Linux bug wranglers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-08-12 15:02 UTC by Phillip Lemon
Modified: 2007-08-12 15:05 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

Attachments
NTP Sleep patch from Redhat, FC7 / Linux Powertop (ntp-4.2.4-sleep.patch,8.33 KB, patch)
2007-08-12 15:04 UTC, Phillip Lemon 		Details | Diff
Update ebuild to use ntp-sleep.patch (ntp-4.2.4_p3.ebuild.patch,449 bytes, patch)
2007-08-12 15:05 UTC, Phillip Lemon 		Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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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