This works GREAT.
Before the write-combining x11perf -ellipse500:
50000 reps @ 0.1062 msec ( 9420.0/sec): 500-pixel ellipse
With write-combining x11perf -ellipse500:
80000 reps @ 0.0661 msec ( 15100.0/sec): 500-pixel ellipse
Cool.
-- Jeffrey Hundstad
On 8 Jul, Jarno Paananen wrote: > Jeffrey Hundstad <jeffrey.hundstad@mankato.msus.edu> writes: > > | If I've read recent posts correctly there should also be an entry to > | make the video writes be combined, correct? It seems that my card has > | Region 0 and Region 1, I suppose graphic and texture areas (see > | below). Which should I use? Both? > > In TNT region 0 is control registers, region 1 frame buffer. > > | Should it be (I don't believe this is correct): > | > | echo "base=0xf5000000 size=0x1625600 type=write-combining" >! /proc/mtrr > | > | Also recently there was a post about excluding caching from I/O and > | non-used areas. How are these determined? > > No, the size is in hexadecimal and you should apply this to region 1, ie.: > > echo "base=0xfc000000 size=0x1000000 type=write-combining" >! /proc/mtrr > > You don't have to exclude anything as you are not changing the > control register region 0 in any way and it remains uncached as > it should be. > > // Jarno
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/