Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48

Ian Romanick
2007-05-23T18:28:17Z

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Xavier Bestel wrote:
> On Wed, 2007-05-23 at 07:23 +0200, Michael Gerdau wrote:
>> For me the huge difference you have for sd to the others increases the
>> likelyhood the glxgears benchmark does not measure scheduling of graphic
>> but something else.
>
> I think some people forget that X11 has its own scheduler for graphics
> operations.

And in the direct-rendering case, this scheduler is not used for OpenGL.
The client-side driver submits rendering commands directly to its
kernel module. It is possible that some kernel modules perform some
sort of scheduling, but none of the open-source drivers implement such a
thing.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)

iD8DBQFGVIZ7X1gOwKyEAw8RAottAJ9oQtnKVZ+xwrZXxyndanwkswp3IACeNY2v
JJeDU3cgBtn1dBOr3erl3Ww=
=YnG7
-----END PGP SIGNATURE-----