Bug 903889
| Summary: | The value of steal time in "top" command always is "0.0% st" after guest migration | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | huiqingding <huding> |
| Component: | qemu-kvm | Assignee: | Marcelo Tosatti <mtosatti> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | high | ||
| Version: | 7.0 | CC: | acathrow, areis, bsarathy, hhuang, juli, juzhang, mkenneth, mtosatti, qzhang, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-1.5.3-7.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 903123 | Environment: | |
| Last Closed: | 2014-06-13 10:11:03 UTC | Type: | Bug |
| 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: | 903123 | ||
| Bug Blocks: | |||
| Attachments: | |||
Created attachment 687122 [details]
The result of top command in the second source guest.
Created attachment 687123 [details]
After migration, the result of top command in the first guest.
Created attachment 687124 [details]
After migration, the result of top command in the second guest.
Hello Huiqing & Orion. Why is this reported against procps-ng? It's very likely a matter of the kernel or qemu-kvm. 'top' only translates values reported by the kernel in a well readable form. As I'm reading the parent bug, the root cause seems to be in the qemu-kvm component. Switching ... Regards, Jaromir. Fix included in qemu-kvm-1.5.3-7.el7 Reproduce: Version: 3.10.0-41.el7.x86_64 qemu-kvm-1.4.0-4.el7.x86_64 Reproduce this bug with the same command line as the comments 0 descript. After migration, the value of steal time in both destination guests are "0.0% st". ----------- The steps as the comments 0 descript. Version: qemu-kvm-1.5.3-11.el7.x86_64 3.10.0-41.el7.x86_64 Before migration: %Cpu(s): 1.7 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 48.3 hi, 0.0 si, 50.0 st %Cpu(s): 1.7 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 48.2 hi, 0.0 si, 50.2 st After migration: %Cpu(s): 0.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 49.8 hi, 0.0 si, 50.2 st %Cpu(s): 0.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 50.2 hi, 0.0 si, 49.8 st After migration, the value of steal time in both destination guests almost do not changed. Based on above test results, I think this bug has been verified. This request was resolved in Red Hat Enterprise Linux 7.0. Contact your manager or support representative in case you have further questions about the request. |
Created attachment 687121 [details] The result of top command of the source first guest.