Amazon-eks-ami: Make TSC the default system clock source

Created on 19 Apr 2019  路  5Comments  路  Source: awslabs/amazon-eks-ami

What would you like to be added:

Make the default system clock source "tsc" instead of "xen".

Why is this needed:

Docker containers that do frequent system time lookups can be badly affected by the overhead around the xen system clock source.

AWS's own tuning recommendations suggest this switch.

Is there any reason not to switch to tsc as the default for the EKS images?

enhancement good first issue
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picture cwhatley
👍1

Most helpful comment

I have a soon pending PR for this. I need to test it first.

https://github.com/JasonSwindle/amazon-eks-ami/commit/9d57d76229bd21ab78f827c5668e03b7d6a60621

picture JasonSwindle on 30 Apr 2019
👍2

All 5 comments

I have a soon pending PR for this. I need to test it first.

https://github.com/JasonSwindle/amazon-eks-ami/commit/9d57d76229bd21ab78f827c5668e03b7d6a60621

JasonSwindle picture JasonSwindle on 30 Apr 2019
👍2

This issue can be closed.

JasonSwindle picture JasonSwindle on 30 May 2019

Closed in #272

micahhausler picture micahhausler on 31 May 2019

This doesn't appear to be working anymore. See comments in #321

cwhatley picture cwhatley on 8 May 2020
😕1

seeing the same behavior in v1.15.11-eks-065dce

redbelow picture redbelow on 6 Aug 2020
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