[PATCH 13/14] docs: Document memory allocation and emulator pinning limitation

[Michal Privoznik]

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 docs/formatdomain.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index c4077c6868..206875d68e 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -1117,7 +1117,9 @@ influence how virtual memory pages are backed by host pages.
    Using the optional ``mode`` attribute, specify when to allocate the memory by
    supplying either "immediate" or "ondemand". :since:`Since 8.2.0` it is
    possible to set the number of threads that hypervisor uses to allocate
-   memory via ``threads`` attribute.
+   memory via ``threads`` attribute. To speed allocation process up, when
+   pinning emulator thread it's recommended to include CPUs from desired NUMA
+   nodes so that allocation threads can have their affinity set.
 ``discard``
    When set and supported by hypervisor the memory content is discarded just
    before guest shuts down (or when DIMM module is unplugged). Please note that
-- 
2.39.2