APPLIED: [PATCH 0/3][j/l/m linux-azure] Azure: Improve SQL DB latency

[Tim Gardner]

On 10/24/23 11:32 AM, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2040300
> 
> 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
> 
Applied to j/l/m linux-azure:master-next. Thanks.

-rtg
-- 
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Tim Gardner
Canonical, Inc