Re: Experiences & recommendations related to HUGEPAGES in RHEL 7

We use huge pages here as a standard. How do people test huge pages to isolate variables so you can measure the improvement from huge pages?

On Sat, Jul 15, 2017 at 3:09 AM, Stefan Koehler <contact_at_soocs.de> wrote:

> Hey,
> the reason behind your performance improvement is a better TLB usage - you
> don't need to work through the page table so often (translation physical
> address from a virtual address) if you are using HugePages.
>
> VMware explained how TLB is used with their software here (page 3&4):
> https://www.vmware.com/content/dam/digitalmarketing/
> vmware/en/pdf/techpaper/vsp_41_perf_memory_resource-
> management-white-paper.pdf
>
> _at_ Scott: I like a sentence that Mark Bobak said: "If you’re not using
> hugepages, you’re doing it wrong!"
>
> Best Regards
> Stefan Koehler
>
> Independent Oracle performance consultant and researcher
> Website: http://www.soocs.de
> Twitter: _at_OracleSK
>
> > Andrew Kerber <andrew.kerber_at_gmail.com> hat am 15. Juli 2017 um 01:21
> geschrieben:
> >
> > we have had good luck with them Our observation is a substantial (10%
> or better) performance improvement when using hugepages on Virtual Machines.
> >
> > Andrew W. Kerber
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

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