Public bug reported:
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.
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Assignee: Marcelo Cerri (mhcerri)
Status: In Progress
** Changed in: linux-azure (Ubuntu)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1698371
Title:
Azure: throughput performance regression after #1690177
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