https://bugs.freedesktop.org/show_bug.cgi?id=34929
Summary: [r300g] slowdown with r300g threading Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: fabio.ped@libero.it
I noticed that since r300g threading was enabled many applications slowed down. On setting RADEON_THREAD=0 openarena go from 94.9 to 100.0, glxgears (FWIW) from 1275 to 1632.
Applications running under gdb shows hundreds of:
[New Thread 0xb6af3b70 (LWP 4622)] [Thread 0xb6af3b70 (LWP 4622) exited] [New Thread 0xb6af3b70 (LWP 4623)] [Thread 0xb6af3b70 (LWP 4623) exited]
and slowdown even more (glxgears drop to ~100 FPS, supertuxkart drop by 50%).
I am running current mesa git + kernel 2.6.37.2 with a RV530 on an Intel Core Duo.