** Changed in: linux-aws (Ubuntu Jammy)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/2043811
Title:
AWS: arm64: pauth: don't sign leaf functions
Status in linux-aws package in Ubuntu:
Fix Released
Status in linux-aws source package in Jammy:
Fix Released
Bug description:
SRU Justification
[Impact]
From our experiments, we found that not signing leaf functions on AWS
Graviton instances helps improve application performance. We would
like to have the patch
https://github.com/torvalds/linux/commit/c68cf5285e1896a2b725ec01a1351f08610165b8
backported to Ubuntu 5.15, 5.19 and 6.2 kernels. We saw some of these
performance improvements: NGINX 1%, MySQL 2%, PyTorch 2%
[Test Plan]
AWS tested.
[Regression Potential]
Arm64 binaries may not work correctly.
[Other Info]
SF: #00372369
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