Re: [Qemu-devel] [PATCH v3 0/3] io-thread optimizations

[Edgar E. Iglesias]

On Mon, Aug 22, 2011 at 05:46:00PM +0200, Jan Kiszka wrote:
> Rebased as requested, also fixing a compiler warning about last_io being
> write-only on !CONFIG_IOTHREAD. That "__attribute__ ((unused))" in patch
> 2 can be removed again when CONFIG_IOTHREAD becomes mandatory.
> 
> Jan Kiszka (3):
>   Do not drop global mutex for polled main loop runs
>   Poll main loop after I/O events were received
>   Do not kick vcpus in TCG mode
> 
>  cpus.c   |    2 +-
>  sysemu.h |    2 +-
>  vl.c     |   22 ++++++++++++++++------
>  3 files changed, 18 insertions(+), 8 deletions(-)


I tested with SMP guests on SMP hosts and can confirm that this
brings a huge speed up. Last time I tested these patches I only
ran UP, and saw no difference.

Acked-by: Edgar E. Iglesias <address@hidden>