** Changed in: linux-azure (Ubuntu Jammy)
Status: In Progress => Fix Committed
** Changed in: linux-azure (Ubuntu Lunar)
Status: In Progress => Fix Committed
** Changed in: linux-azure (Ubuntu Mantic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2040300
Title:
Azure: Improve SQL DB latency
Status in linux-azure package in Ubuntu:
Fix Released
Status in linux-azure source package in Jammy:
Fix Committed
Status in linux-azure source package in Lunar:
Fix Committed
Status in linux-azure source package in Mantic:
Fix Committed
Bug description:
SRU Justification
[Impact]
TCP pingpong threshold is 1 by default. But some applications, like SQL DB
may prefer a higher pingpong threshold to activate delayed acks in quick
ack mode for better performance.
There is no single value that fits all applications.
Add net.ipv4.tcp_pingpong_thresh sysctl tunable, so it can be tuned for
optimal performance based on the application needs.
[Test Case]
Microsoft tested
[Regression Potential]
Should be zero since default behavior is unchanged.
[Other Info]
SF: #00357415
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