IRIS on AWS EC2 and Hugepages

Question

Question

#AWS #Red Hat Enterprise Linux (RHEL) #System Administration #Health Connect #InterSystems IRIS #InterSystems IRIS for Health

Hi all, I need an advice (or a guide):

In an EC2 environment running RHEL, which memory management model makes sense to use. Standard Huge Pages or Transparent Huge Pages?

Product version: IRIS 2023.1

Discussion (4)2

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Mark Bolinsky · May 10

Transparent HugePages (THP) are not the same as standard HugePages, and this is especially important for IRIS and its shared memory segment. THP do not handle shared memory segments. Please see my article that discusses this in detail: https://community.intersystems.com/post/linux-transparent-hugepages-and-impact-intersystems-iris

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score 0 · Answer 1 · 2024-05-06T14:57:20-04:00

Hi Cristiano, it is not recommended to use transparent huge pages:

https://docs.intersystems.com/irisforhealth20241/csp/docbook/DocBook.UI.Page.cls?KEY=ARES#ARES_memory_plan_pages_linux

score 0 · Answer 2 · 2024-05-07T04:02:20-04:00

Thanks @Vic Sun

I showed this documentation and others to those responsible for the Infrastructure area, but they told me that it doesn't make sense to use Standard Huge Pages, as we lose the benefit of hyperconvergence. I will ask the WRC opinion on this topic.

score 0 · Answer 3 · 2024-05-13T09:53:20-04:00

Cristiano Silva · May 13

Thanks @Mark Bolinsky great article.

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