Messages in this thread | | | Date | Tue, 10 Apr 2001 22:30:41 -0700 | From | David Ashley <> | Subject | 2.4 kernel problem |
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XFree86 X window updates are slower on 2.4 than 2.2, by a significant amount. I've observed this comparing 2.2.18 with 2.4.1 and one of the 2.4.pre kernels. I've seen it with ATI Rage 128, Geforce 1 and GeForce 2 MX. I've seen it on two different computers, both Athlon based. Just any rectangular copies to an X window are slow on 2.4 and much faster under 2.2.18.
I'm using DRI and accelerated GLX servers so I get good 3d, but 2d is suffering in a *big* way. Here are some frames/second for a simple program:
Using shared memory Kernel frames/second yes 2.4 39 no 2.4 30 yes 2.2.18 245 no 2.2.18 88
I can't get any response from the XFree86 team. I know I'm not the only one with this trouble, something has been broken in the 2.4.
Thanks-- Dave dash@xdr.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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