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Date: Mon, 3 Oct 2005 14:58:41 +0200
From: Christian MICHON <christian.michon@gmail.com>
Subject: Re: [Qemu-devel] [patch] non-blocking disk IO
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To: qemu-devel@nongnu.org

I managed to make it work (qemu+non blocking IO on windows host),
with a rough estimation of 10% speed increase at the early stage of
windows setup. I expect more once windows installs itself in true
multitasking mode. :)

What you need to do is:
- download pthreads-w32-2-6-0-release.tar.gz and compile it from scratch
 (make clean GC)
- you also need to add the following lines inside block.c (usleep is not
present in win32/mingw32)

 #ifdef WIN32
void usleep(unsigned long usec)
{
    Sleep(usec/1000);
}
#endif

- you need to update the link to include "-lpthreadGC2 -lz", and
keep a copy of the pthreadGC2.dll where qemu.exe will be
(to pu it just in from of "-lz" is just my personal suggestion)

HIH,
Christian

On 10/3/05, Elefterios Stamatogiannakis <estama@dblab.ece.ntua.gr> wrote:
> With which pthreads library have you compiled it under windows?
>
> I've tried it with the one here:
>
> ftp://sources.redhat.com/pub/pthreads-win32/
>
> but it didn't compile.
>
> teris.