Re: [Qemu-devel] [Qemu-ppc] [PATCH RFC v1 0/3] Enable MTTCG on PPC64

[G 3]

On Apr 6, 2017, at 9:26 AM, Cédric Le Goater wrote:

> Hello Nikunj,
>
> On 04/06/2017 12:22 PM, Nikunj A Dadhania wrote:
> > The series enables Multi-Threaded TCG on PPC64
> >
> > Patch 01: Use atomic_cmpxchg in store conditional
> >       02: Handle first write to page during atomic operation
> >       03: Generate memory barriers for sync/isync and load/store  
> > conditional
> >
> > Patches are based on ppc-for-2.10
> >
> > Tested using following:
> > ./ppc64-softmmu/qemu-system-ppc64 -cpu POWER8 -vga none -nographic  
> > -machine pseries,usb=off -m 2G  -smp 8,cores=8,threads=1 -accel  
> > tcg,thread=multi  f23.img
>
> I tried it with a Ubuntu 16.04.2 guest using stress --cpu 8. It looked
> good : the CPU usage of QEMU reached 760% on the host.

What was your guest operating system?