[PATCH 0/3] Optimize VBO size for GL and EGL
Bryce Harrington <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <[email protected]> |
Last year I posted a patch I'd used in some experiments I did with varying the VBO size.[1] I'd found that this had an appreciable (8%) performance impact on the firefox-fishbowl tests. Chris Wilson suggested some improvements[2] to enable this performance optimization to actually get taken advantage of. The first patch is the original proposed patch. The second makes the VBO size trackable on a per-backend basis. The third applies the actual optimization, changing the default VBO size for GL to 1M while leaving it at 16k for EGL. The firefox-fishbowl test case measures the performance of a large number of moving sprites. I do not know of any real-world use cases this improves, but presumably the fishbowl test suggests that this patch should have some benefit to cairogl-based animation. 1: http://www.bryceharrington.org/wordpress/2013/08/vbo-size/ 2: http://lists.cairographics.org/archives/cairo/2013-August/024576.html Bryce Harrington (3): cairo-gl: Make VBO size run-time settable gl: Track the VBO size as a property of the ctx gl: Increase default VBO size on GL to 1M src/cairo-egl-context.c | 6 ++++++ src/cairo-gl-composite.c | 3 ++- src/cairo-gl-device.c | 4 +++- src/cairo-gl-info.c | 20 ++++++++++++++++++++ src/cairo-gl-private.h | 9 +++++++-- 5 files changed, 38 insertions(+), 4 deletions(-) -- 1.7.9.5 -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo