Re: [gnet-devel] echoserver.exe cause 100% CUP time on WinXP

["Kuang-Chun Cheng" <kcc1967 gmail com>]

Hi,

I think I found the problem.
In $GNET_2_0_8/src/iochannel.c, function gnet_io_channel_readn()
use glib call, g_io_channel_read() ... this API cause 100%CPU problem
under Win32.

I'm using glib-2.16.3, and since the document of glib said that
g_io_channel_read() was deprecated since v2.2 ... so I simply change
g_io_channel_read() to g_io_channel_read_chars() ...
and the 100% CPU problem under Win32 goes away.

Can someone confirm this.   I can make a patch if anyone is
interesting with this
fix (or work around).   But since g_io_channel_read() return GIOError, and
g_io_channel_read_chars() return GIOStatus.  With return value of
gnet_io_channel_readn() will also change ... don't know if this break anything
else.   FYI.


Regards,
KC




On Fri, Apr 11, 2008 at 3:44 PM, Kuang-Chun Cheng <kcc1967 gmail com> wrote:
> Thanks, I will check that.
>
>
>  Best Regards
>  KC
>
>
>
>  On Fri, Apr 11, 2008 at 3:37 PM, Dov Grobgeld <dov grobgeld gmail com> wrote:
>  > Hi Kuang-Chan,
>  >
>  > I remember having a similar problems a few years back, but I forgot how I
>  > solved it! But what I do know is that my xmlrpc-server code in the gnet
>  > tarball is working on windows. Perhaps it can be of help to get your server
>  > to work.
>  >
>  > Regards,
>  > Dov
>  >
>  >
>  >
>  > On 11/04/2008, Kuang-Chun Cheng <kcc1967 gmail com> wrote:
>  > >
>  > >
>  > >
>  > > Hi,
>  > >
>  > > I had build gnet-2.0.8 by using cross mingw compiler under Linux.
>  > > And I found even the simple "echoserver.exe" will cause 100% CPU time
>  > > under WinXP when client connected to it (after accept return ...)
>  > >
>  > > I checked gnet-2.0.7 which also had the similar problem.
>  > >
>  > > gnet client did not have such probem, only server (GTcpSocket server).
>  > >
>  > > I don't know if it's my cross mingw problem, glib2 problem or gnet2
>  > problem.
>  > > Does anyone can suggest where should I looking at.
>  > > Any code in gnet2 might use 100% CPU when "accept" return ?
>  > >
>  > > I will start looking at the source code of gnet2 ... and hopefully
>  > > also can get some
>  > > information from here.  Thanks
>  > >
>  > > Best Regards,
>  > > KC
>  > > _______________________________________________
>  > > gnet-devel-list mailing list
>  > > gnet-devel-list gnome org
>  > > http://mail.gnome.org/mailman/listinfo/gnet-devel-list
>  > >
>  >
>  >
>