On Tue, 20 Jan 2004, Nikolai Zhubr wrote: > Yet another note, in 16bpp (+dri) it appeared to increase > from 85 to 254/sec. Strange thing. Yes, I would expect the 32bpp to be half the performance of 16bpp. That driver also has (or at least had) and option of running in 24bpp. You might try it there. Back from when I ran Matrox cards on P3s, I thought I recall getting closer to 150/sec. I had the SGRAM versions of the cards though. The SDRAM versions might be slower. You might also see if the resolution/refresh rate has anything to do with it. If it does, it would imply that memory bandwidth is running out. Back when I worked on the driver there was an "OverclockMem" option that would give you more memory bandwidth. Mark. > > > Thank you Mark, > > it is AGP one. From Xfree86.log: > > (--) MGA(0): Chipset: "mgag200" > > (**) MGA(0): Depth 24, (--) framebuffer bpp 32 > > (==) MGA(0): RGB weight 888 > > (==) MGA(0): Using AGP 1x mode > > (--) MGA(0): Linear framebuffer at 0xE3000000 > > (--) MGA(0): MMIO registers at 0xE2000000 > > (--) MGA(0): Pseudo-DMA transfer window at 0xE1800000 > > cat /proc/mtrr: > > reg00: base=0x00000000 ( 0MB), size= 256MB: write-back, count=1 > > reg01: base=0xe3000000 (3632MB), size= 16MB: write-combining, count=3 > > Somewhat strange that count=3 but still the region looks correct to me. > > Any hints on what could be a bottleneck are appreciated. > > --- > > (Please CC me, I'm not subscribed to XFree86 ML) > > Best regards, > > Nikolai Zhubr > > > > Mark Vojkovich wrote: > > > That looks reasonable for a PCI card. If that's > > > an AGP card, that's low and you'll want to make sure > > > that mtrrs are setup correctly. /proc/mtrr should > > > show a write-combined region for the video ram. > > > > > > Mark. > > > > > > On Mon, 19 Jan 2004, Nikolai Zhubr wrote: > > > > Hi, > > > > could someone please point me what would be > > > > reasonable x11perf -shmput500 results for > > > > matrox G200 on P3-800? I'm using XFree 4.3.0 > > > > here and I get 85/sec. Is it the best G200 can > > > > do? > > > > Lots of thanks. > > > > (Please CC me, I'm not subscribed) > > > > --- > > > > Best regards, > > > > Nikolai Zhubr > > > > _______________________________________________ > > > > XFree86 mailing list > > > > XFree86@xxxxxxxxxxx > > > > http://XFree86.Org/mailman/listinfo/xfree86 > > _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86
