[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [libvirt] [PATCH] Qemu: ask for memory preallocation with large pages



On Thu, Jan 07, 2010 at 05:31:59PM +0000, Daniel P. Berrange wrote:
> On Thu, Jan 07, 2010 at 02:53:20PM +0100, Daniel Veillard wrote:
> > The -mem-prealloc flag should be used when using large pages
> > This ensures qemu tries to allocate all required memory immediately,
> > rather than when first used. The latter mode will crash qemu
> > if hugepages aren't available when accessed, while the former
> > should gracefully fallback to non-hugepages.
> > 
> > * src/qemu/qemu_conf.c: add -mem-prealloc flag to qemu command line
> >   when using large pages
> 
> ACK, definitely don't want VMs crashing when attempting to page in
> huge pages which don't exist anymore

  okay, pushed,

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel veillard com  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]