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Re: [Qemu-devel] [PATCH] qemu-thread: add a fast path to the Win32 QemuE
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH] qemu-thread: add a fast path to the Win32 QemuEvent |
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Date: |
Thu, 10 Sep 2015 21:36:06 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
On 10/09/2015 21:30, Stefan Weil wrote:
> The real time varies because the test includes user
> interactions (pressing enter, starting test,
> terminating QEMU after test).
>
> The user time (mainly emulation) does not vary much.
>
> The system time is significantly reduced (less than
> 50 % in both runs with patch compared to both runs
> without patch).
Makes sense. You tested it better than I did. :)
> I also had an (unrelated) crash with the unpatched code:
>
> wine: Unhandled page fault on read access to 0x0000004c at address
> 0x43ed3d (thread 0009), starting debugger...
>
> It happened once in three runs, so this needs separate
> investigations.
>
> Would you suggest additional tests?
No, I think it's good.
> I'll take your patch in my queue (git://qemu.weilnetz.de/qemu.git wxx).
Thanks!
Paolo