[Xcb] GTK-XCB is in progress

[Josh Triplett]

Vincent Torri wrote:
> 
> On Tue, 7 Nov 2006, Yang JianJun wrote:
>> I have used gtkperf to test the gdk-xcb performance on PC, but the benchmark
>> data shows gdk-xcb is a bit slow than gdk-x11 :(
> 
> I've experienced the same thing when I ported evas. It might come from a 
> difference in the cache used by Xlib and XCB. I can't remember what you 
> should do to increase the XCB cache (it's an env variable to set), but 
> it's in the ML somewhere :)

The difference there came from the larger output buffer size used by Xlib.
XCB doesn't support setting this via an environment variable, but Xlib does.
XLIBBUFFERSIZE=4096 will make Xlib's buffer size match XCBs.  I'd love to know
how that affects the performance numbers you see.

- Josh Triplett

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