2 Commits

Author	SHA1	Message	Date
Michal Privoznik	c658764dec	qemu: Don't use -mem-prealloc among with .prealloc=yes ... https://bugzilla.redhat.com/show_bug.cgi?id=1624223 There are two ways to request memory preallocation on cmd line: -mem-prealloc and .prealloc attribute for a memory-backend-file. However, as it turns out it's not safe to use both at the same time. If -mem-prealloc is used then qemu will fully allocate the memory (this is done by actually touching every page that has been allocated). Then, if .prealloc=yes is specified, mbind(flags = MPOL_MF_STRICT | MPOL_MF_MOVE) is called which: a) has to (possibly) move the memory to a different NUMA node, b) can have no effect when hugepages are in play (thus ignoring user request to place memory on desired NUMA nodes). Prefer -mem-prealloc as it is more backward compatible compared to switching to "-numa node,memdev= + -object memory-backend-file". Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: John Ferlan <jferlan@redhat.com>	2018-12-13 09:55:38 +01:00
Pavel Hrdina	c8a8c7ebba	tests: extract hugepages-numa-default-dimm out of hugepages-numa ... Signed-off-by: Pavel Hrdina <phrdina@redhat.com>	2018-08-10 17:06:48 +02:00