Bug 497181
Summary: | [LTC 6.0 FEAT] Nominate power efficient idle loadbalancer [201925] | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 6 | Reporter: | IBM Bug Proxy <bugproxy> |
Component: | kernel | Assignee: | Kevin W Monroe <kmonroe> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | Martin Jenner <mjenner> |
Severity: | high | Docs Contact: | |
Priority: | low | ||
Version: | 6.0 | CC: | jjarvis, jlarrew, peterm |
Target Milestone: | rc | Keywords: | FutureFeature |
Target Release: | --- | ||
Hardware: | All | ||
OS: | All | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Enhancement | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2009-09-16 18:44:58 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 356741, 525727 |
Description
IBM Bug Proxy
2009-04-22 17:30:41 UTC
This is in 2.6.31 under the following commit ids: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f711f6090a81cbd396b63de90f415d33f563af9b http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e790fb0ba64bfec158e1219d899cb588275d12ab ------- Comment From arunbharadwaj.com 2010-05-10 13:18 EDT------- Hi, I have verified that this feature is present in RHEL6 snap 1 kernel and it is functionally working correct. Here is how I have tested this feature: On a fully idle SMP, start a small workload pinned to any one CPU. Observe that the interrupt rate on this CPU is high. Also observe that another CPU from the *same* package has a high interrupt rate. This is the ILB CPU. Since the ILB CPU is chosen from the same package as the busy CPU, this feature is functionally working correct. thanks arun |