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Hello,

> Thanks, is the advantage of XFree86 over Xsun (on cgsix) only in
> supporting newer extensions like RENDER, or does XFree86 also offer
> better performance?

I did some measurements with x11perf.
Results are mixed:
- blitter operations, like filling and copying rectangles are faster=20
  with XFree86
- image transfers ( host to screen ) are faster with XFree86=20
- text rendering is faster with Xsun, but my XFree driver has no special
  text rendering code yet so XFree uses indirect colour expansion which
  gives a small performance hit
- line drawing is about the same speed
- more complex operations, like moving/drawing/hiding windows are faster
  on XFree86.

Speed differences aren't big though, usually about 5%.

I used an Ultra 1 with a TGX+, running -current XFree86 and Xsun from
xsrc, bleeding edge suncg6 driver I'm going to commit pretty soon which
implements line drawing and handles all blitter operations
asynchronously.

have fun
Michael

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