Bug 555693
| Summary: | [LTC 6.0 FEAT] KVM network performance: vhost-net patches | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | IBM Bug Proxy <bugproxy> |
| Component: | kernel | Assignee: | Steve Best <sbest> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | low | ||
| Version: | 6.0 | CC: | aliguori, dyuan, jjarvis, jolsa, mgahagan, nobody+PNT0273897, rpacheco, sbest, snagar, tgraf |
| Target Milestone: | beta | Keywords: | FutureFeature |
| Target Release: | 6.0 | ||
| Hardware: | other | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-2.6.32 | Doc Type: | Enhancement |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-07-02 19:19:29 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, 532696 | ||
|
Description
IBM Bug Proxy
2010-01-15 08:20:41 UTC
So did this get accepted upstream in 2.6.33 and if so, is IBM planning to provide backports for this feature? We are just about out of runway to do this for RHEL 6.0. ------- Comment From sri.com 2010-02-04 14:16 EDT------- vhost-net patches are accepted into davem's net-next-2.6 tree and are targeted for 2.6.34. But, based on the discussions in the IBM/RH interlock calls, it looks like these patches are already in RHEL6 kernel tree. ------- Comment From xma.com 2010-02-04 14:30 EDT------- We also need to backport removing send queue patch for virtio_net. It could gain transmission performance. netperf TCP STREAM test shows 20% increase. ------- Comment From sri.com 2010-02-04 14:38 EDT------- Shirley, defer skb allocation patches to optimize virtio-net are tracked via another bugzilla. Bug 58968 - RH555698-[LTC 6.0 FEAT] KVM network performance: Defer skb allocation in virtio-net But there are no patches in this BZ nor in https://bugzilla.redhat.com/show_bug.cgi?id=555698 so if they did go into RHEL 6 kernel tree, where were they submitted? ------- Comment From sri.com 2010-02-04 17:07 EDT------- vhost-net patches were submitted by Michael Tsirkin of Redhat. Here are the links to the patches in net-next-2.6. http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=05c2828c72c4eabf62376adfe27bd24797621f62 http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=5da779c34ccff5e1e617892b6c8bd8260fb1f04c http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=3a4d5c94e959359ece6d6b55045c3f046677f55c http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=17660f81243e998f36257881ac3ae61685bf91c1 (In reply to comment #7) > ------- Comment From sri.com 2010-02-04 17:07 EDT------- > vhost-net patches were submitted by Michael Tsirkin of Redhat. Here are the > links to the patches in net-next-2.6. > > 1) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=05c2828c72c4eabf62376adfe27bd24797621f62 > 2) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=5da779c34ccff5e1e617892b6c8bd8260fb1f04c > 3) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=3a4d5c94e959359ece6d6b55045c3f046677f55c > 4) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=17660f81243e998f36257881ac3ae61685bf91c1 John Jarvis asked me to check to see if these 4 patches we in RHEL 6 and as of kernel-2.6.32-14.el6 patch 1, 2, 3 are in patch 4 is not in. (In reply to comment #9) > (In reply to comment #7) > > ------- Comment From sri.com 2010-02-04 17:07 EDT------- > > vhost-net patches were submitted by Michael Tsirkin of Redhat. Here are the > > links to the patches in net-next-2.6. > > > > > 1) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=05c2828c72c4eabf62376adfe27bd24797621f62 > > 2) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=5da779c34ccff5e1e617892b6c8bd8260fb1f04c > > 3) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=3a4d5c94e959359ece6d6b55045c3f046677f55c > > 4) http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=17660f81243e998f36257881ac3ae61685bf91c1 > > John Jarvis asked me to check to see if these 4 patches we in RHEL 6 and as of > kernel-2.6.32-14.el6 patch 1, 2, 3 are in patch 4 is not in. Patch 4 was just posted to rh-kernel mailing list by Michael Tsirkin the post is here [RHEL6 PATCH 8/8] vhost: fix TUN=m VHOST_NET=y http://post-office.corp.redhat.com/archives/rhkernel-list/2010-February/msg00472.html the bz for that post is https://bugzilla.redhat.com/show_bug.cgi?id=562837 I assume this patch will make it in RHEL6 and no additional work needs to be done for this bz. vhost-net is already in the RHEL6 kernel According to comment 14, change bug status to VERIFIED. ------- Comment From sri.com 2010-06-28 19:21 EDT------- Marking this feature as Verified. Red Hat Enterprise Linux Beta 2 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you. The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days |