[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-20 Thread Udo Lembke
Avi Kivity schrieb: On 05/19/2010 11:02 PM, Udo Lembke wrote: Unrelated, what are your smp issues? If i use one cpu i got a good io-performance: e.g. over 500MB/s at the profile "install" of the io-benchmark h2benchw.exe. ( aio=threads | SAS-Raid-0 | ftp://ftp.heise.de/pub/ct/ctsi/h2benchw.

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-19 Thread Avi Kivity
On 05/19/2010 11:02 PM, Udo Lembke wrote: Unrelated, what are your smp issues? If i use one cpu i got a good io-performance: e.g. over 500MB/s at the profile "install" of the io-benchmark h2benchw.exe. ( aio=threads | SAS-Raid-0 | ftp://ftp.heise.de/pub/ct/ctsi/h2benchw.zip | hwbenchw.exe -p

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-19 Thread Udo Lembke
Avi Kivity schrieb: On 05/19/2010 12:57 PM, Udo Lembke wrote: Jan Kiszka schrieb: ... --enable-io-thread? If you had it disabled, it would also answer my question if -smp works without problems without that feature. Jan Hi, i have a dumb question: what is the "--enable-io-thread"? Is this a

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-19 Thread Avi Kivity
On 05/19/2010 12:57 PM, Udo Lembke wrote: Jan Kiszka schrieb: ... --enable-io-thread? If you had it disabled, it would also answer my question if -smp works without problems without that feature. Jan Hi, i have a dumb question: what is the "--enable-io-thread"? Is this a kvm-switch? It's

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-19 Thread Udo Lembke
Jan Kiszka schrieb: ... --enable-io-thread? If you had it disabled, it would also answer my question if -smp works without problems without that feature. Jan Hi, i have a dumb question: what is the "--enable-io-thread"? Is this a kvm-switch? My kvm 0.12.4 don't accept this switch. I'm kno

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-14 Thread Alexander Graf
On 14.05.2010, at 17:54, Jan Kiszka wrote: > Alexander Graf wrote: >> On 14.05.2010, at 17:48, Avi Kivity wrote: >> >>> On 05/14/2010 05:06 PM, Alexander Graf wrote: On 12.05.2010, at 23:25, Marcelo Tosatti wrote: > Process INIT/SIPI requests and enable -smp> 1. >

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-14 Thread Jan Kiszka
Alexander Graf wrote: > On 14.05.2010, at 17:48, Avi Kivity wrote: > >> On 05/14/2010 05:06 PM, Alexander Graf wrote: >>> On 12.05.2010, at 23:25, Marcelo Tosatti wrote: >>> >>> Process INIT/SIPI requests and enable -smp> 1. >>> Does this enable real SMP or does it still only al

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-14 Thread Alexander Graf
On 14.05.2010, at 17:48, Avi Kivity wrote: > On 05/14/2010 05:06 PM, Alexander Graf wrote: >> On 12.05.2010, at 23:25, Marcelo Tosatti wrote: >> >> >>> Process INIT/SIPI requests and enable -smp> 1. >>> >> Does this enable real SMP or does it still only allow one vcpu to run at a >> ti

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-14 Thread Avi Kivity
On 05/14/2010 05:06 PM, Alexander Graf wrote: On 12.05.2010, at 23:25, Marcelo Tosatti wrote: Process INIT/SIPI requests and enable -smp> 1. Does this enable real SMP or does it still only allow one vcpu to run at a time? The realest ever. Still doesn't use in-kernel irqchip

[Qemu-devel] Re: [PATCH 10/12] kvm: enable smp > 1

2010-05-14 Thread Alexander Graf
On 12.05.2010, at 23:25, Marcelo Tosatti wrote: > Process INIT/SIPI requests and enable -smp > 1. Does this enable real SMP or does it still only allow one vcpu to run at a time? Alex