Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-04-22 Thread Satoru Moriya
Hi Vinod, Thank you for your report. (2013/04/22 14:16), Chegu Vinod wrote: > FYI... I had tried to use this change earlier and it did show some > improvements in perf. (due to reduced exits). > > But as expected mlockall () on large sized guests adds a considerable > delay in boot time. Yes, i

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-04-22 Thread Anthony Liguori
Applied. Thanks. Regards, Anthony Liguori

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-04-21 Thread Chegu Vinod
Hi Satoru, FYI... I had tried to use this change earlier and it did show some improvements in perf. (due to reduced exits). But as expected mlockall () on large sized guests adds a considerable delay in boot time. For e.g. on an 8 socket Westmere box => a 256G guest : took an additional ~2+

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-04-03 Thread Markus Armbruster
Seiji Aguchi writes: > Anthony, > >> Currently my company doesn't allow me to use git-send-email to send a email. >> So now I'm trying to find work around with IT. > > Satoru and I still talk if we can use git-send-email with my company IT. > But, it seems to take a long time... > > So, I attach

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-04-02 Thread Anthony Liguori
t; Sent: Wednesday, March 27, 2013 11:18 AM >> > To: Satoru Moriya; qemu-devel@nongnu.org >> > Cc: Jan Kiszka; mtosa...@redhat.com; Paolo Bonzini; Seiji Aguchi; >> > Tomoki Sekiyama; dle- deve...@lists.sourceforge.net; >> > satoru.moriya...@hitachi.com >> &g

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-04-02 Thread Seiji Aguchi
yama; dle-deve...@lists.sourceforge.net; > satoru.moriya...@hitachi.com > Subject: RE: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory > > > -Original Message- > > From: Anthony Liguori [mailto:aligu...@us.ibm.com] > > Sent: Wednesday, March 27, 2013

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-03-27 Thread Satoru Moriya
lists.sourceforge.net; satoru.moriya...@hitachi.com > Subject: Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory > > Satoru Moriya writes: > > > In certain scenario, latency induced by paging is significant and > > memory locking is needed. Also, in th

Re: [Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-03-27 Thread Anthony Liguori
Satoru Moriya writes: > In certain scenario, latency induced by paging is significant and > memory locking is needed. Also, in the scenario with untrusted > guests, latency improvement due to mlock is desired. > > This patch introduces a following new option to mlock guest and > qemu memory: > >

[Qemu-devel] [PATCH v4] Add option to mlock qemu and guest memory

2013-03-26 Thread Satoru Moriya
In certain scenario, latency induced by paging is significant and memory locking is needed. Also, in the scenario with untrusted guests, latency improvement due to mlock is desired. This patch introduces a following new option to mlock guest and qemu memory: -realtime mlock=on|off Signed-off-by: