Azure: throughput performance regression after #1690177
Bug #1698371 reported by
Marcelo Cerri
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux-azure (Ubuntu) |
Fix Committed
|
Undecided
|
Marcelo Cerri | ||
| Xenial |
Fix Committed
|
Undecided
|
Unassigned | ||
Bug Description
SRU Justification:
Impact: After #1690177, throughput between instances in Azure decreased drastically. The performance dropped from around 10 Gbits/sec to 50 Mbits/sec.
Fix: The problem seems to be caused by this commit:
5740cde3743b vmbus: only reschedule tasklet if time limit exceeded
Testcase: Use iperf between to Azure instances with the Azure kernel to measure throughput.
| Changed in linux-azure (Ubuntu): | |
| status: | New → In Progress |
| Changed in linux-azure (Ubuntu): | |
| status: | In Progress → Fix Committed |
| Changed in linux-azure (Ubuntu Xenial): | |
| status: | New → Fix Committed |
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