Re: [Qemu-devel] [PATCH] sysemu: support up to 1024 vCPUs

2016-05-11 Thread Greg Kurz
On Wed, 11 May 2016 16:20:08 +0200 Igor Mammedov wrote: > On Wed, 11 May 2016 16:00:04 +0200 > Greg Kurz wrote: > > > Some systems can already provide more than 255 hardware threads. > > > > Bumping the QEMU limit to 1024 seems reasonable: > > -

Re: [Qemu-devel] [PATCH] sysemu: support up to 1024 vCPUs

2016-05-11 Thread Igor Mammedov
On Wed, 11 May 2016 16:00:04 +0200 Greg Kurz wrote: > Some systems can already provide more than 255 hardware threads. > > Bumping the QEMU limit to 1024 seems reasonable: > - it has no visible overhead in top > - the limit itself has no effect on hot paths > >

[Qemu-devel] [PATCH] sysemu: support up to 1024 vCPUs

2016-05-11 Thread Greg Kurz
Some systems can already provide more than 255 hardware threads. Bumping the QEMU limit to 1024 seems reasonable: - it has no visible overhead in top - the limit itself has no effect on hot paths Signed-off-by: Greg Kurz --- This was tested with a pseries guest only.