Bug 17700

Summary:	Low performance of xscreensaver hack gflux (grab mode)
Product:	Mesa	Reporter:	Chris Rankin <rankincj>
Component:	Drivers/DRI/r300	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED INVALID	QA Contact:
Severity:	normal
Priority:	medium
Version:	git
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Chris Rankin 2008-09-21 14:17:24 UTC

Run the xscreensaver (5.07) hack as:

/usr/libexec/xscreensaver/gflux -mode grab -fps

I get 12 fps, 77% load, 460 polygons with my Radeon 9550. Compare this to my Matrox G400 MAX which gives me 20 fps, 60% load, 460 polygons.

Comment 1 Michel Dänzer 2008-09-22 02:45:35 UTC

vblank_mode=0 /usr/lib/xscreensaver/gflux -mode grab -fps -delay 0

gives me about 100 fps on a mobile RV350. Was this really using the r300 driver, not swrast?

Comment 2 Chris Rankin 2008-09-22 03:13:13 UTC

(In reply to comment #1)
> vblank_mode=0 /usr/lib/xscreensaver/gflux -mode grab -fps -delay 0
> 
> gives me about 100 fps on a mobile RV350. Was this really using the r300
> driver, not swrast?

Actually, I think this was because the r300_dri.so was broken, leaving me with swrast instead. With the latest Mesa-git I am getting 30 fps with 40% load.

Comment 3 Adam Jackson 2009-08-24 12:30:53 UTC

Mass version move, cvs -> git

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