libX11 and xcb

[Peter Harris]

On 2010-04-12 16:25, Tiago Vignatti wrote:
> Jamey Sharp wrote:
>>
>> I re-ran performance tests when we switched to the "socket handoff" API,
>> and my results showed very little difference between libX11 built with
>> and without XCB. I think that testing was with a simple application that
>> sends NoOperation requests as fast as it can, which is a worst-case for
>> X protocol marshalling performance.
>>
> 
> I'd like to hear a bit more about this performance tests, Jamey. For
> instance what you used, how they were done, etc.
> 
> Do you have something to point? Some links maybe?

Looks like he used x11perf -noop to discern the worse-case overhead of
Xlib/XCB:

http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=50d5c83

Peter Harris
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