Bug 879287
| Summary: | [rhevm-backend] - Database - VM Interface transmit rate % values are higher than 100% | ||||||
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| Product: | Red Hat Enterprise Virtualization Manager | Reporter: | David Botzer <dbotzer> | ||||
| Component: | ovirt-engine | Assignee: | Nobody's working on this, feel free to take it <nobody> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | |||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 3.1.0 | CC: | dyasny, iheim, lpeer, pstehlik, Rhev-m-bugs, yeylon, ykaul | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2012-11-22 15:15:05 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: | |||||||
| Attachments: |
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The way percentage is calculated is tx or rx rate related to speed. For para-virtual drivers speed is not something we can measure, it's all copies in memory, so we have 'heuristic' that reports the VM speed for para-virtual driver is 1000 (and for e1000 the speed is 100). This means that if tx or rx > 1000 you'll get more than 100% which the expected behaviour. |
Created attachment 649853 [details] NICtXrX-values Description of problem: The values for VM Interface Transmit rate in percentage exceeds 100% thus it is calculated incorrectly / false data Version-Release number of selected component (if applicable): 3.1/si24.4 How reproducible: always Steps to Reproduce: 1.install rhevm+dwh+reports 2.Run iperf traffic between two VMs e.x python loadUtils.py net -s L@ip:usr:pass -c L@ip:usr:pass -p 55598 -- -- -a 1K 3.check the values in history db View -> v3_1_vm_interface_samples_history_view Actual results: Values in "transmit_rate_percent" & "receive_rate_percent" are higher than 100% Graphs and calculated fields are incorrect/false Expected results: Values in "transmit_rate_percent" & "receive_rate_percent" Should exceed 100% Additional info: