[rhelv6-list] THP: Why are they on by default?

[solarflow99]

I really miss the mailing lists, I wish they had a way of gating them with
the lousy web forums.
On Feb 17, 2016 8:57 AM, "Troels Arvin" <troels at arvin.dk> wrote:

> I've just had a situation with an RHEL 7 server where transparent
> hugepages (THP) might have contributed to a problem. And there are many
> projects/products which recommend turning THP off, eg:
>
> https://docs.oracle.com/database/121/UNXAR/appi_vlm.htm
> http://www.cloudera.com/documentation/enterprise/latest/topics/
> cdh_admin_performance.html
> https://docs.mongodb.org/manual/tutorial/transparent-huge-pages/
> http://www.chriscalender.com/disabling-transparent-hugepages-for-tokudb/
> http://www-01.ibm.com/support/docview.wss?uid=swg21677458
>
> I have also seen reports about THP ruining the performance on
> workstations.
>
> So which workloads actually benefit significantly from THP?
>
> Does someone know if Red Hat has considered turning them off by default?
>
> (There doesn't seem to be a mailing list for RHEL 7, so I'm using this
> mailing list instead. Which should be OK, as I believe there isn't much
> difference WRT THP between RHEL 6 and 7.)
>
>
> --
> Troels Arvin
>
>
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>
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