[PATCH 1/4] conf: Introduce memory allocation threads

Michal Prívozník mprivozn at redhat.com
Wed Mar 23 07:48:00 UTC 2022


On 3/22/22 16:05, Michal Privoznik wrote:
> Since its commit v5.0.0-rc0~75^2~1^2~3 QEMU is capable of
> specifying number of threads used to allocate memory. While it
> defaults to the number of vCPUs, users might want to use a
> different value (especially for humongous guests with gigantic
> pages).

Err, this statement is not correct. The default value is 1 and not
number of vCPUs. If it was numbed of vCPUs then these patches would be
that necessary. I've reworded this paragraph locally to:

Since its commit v5.0.0-rc0~75^2~1^2~3 QEMU is capable of
specifying number of threads used to allocate memory. It defaults
to 1, which may be too low for humongous guests with gigantic
pages.


Thank to David Hildebrand for pointing this out to me.

Michal



More information about the libvir-list mailing list