Messages in this thread |  | | | Date | Tue, 13 Dec 2005 09:10:31 +0100 | | From | Helge Hafting <> | | Subject | Re: Linux in a binary world... a doomsday scenario |
Nix wrote: [...]
>FWIW when glxgears is running, X consumes about 2% more CPU time >than normal: it's almost impossible to detect. > > Sure - the load is low - and so is performance. As if the machine isn't really trying - perhaps the driver is waiting when there is no need to wait.
>It sounds to me almost like direct rendering is disabled, which will of >course have catastropic effects on performance. What does glxinfo say? > > No. While it is bad, it is not as bad as sw rendering. Tuxracer with sw rendering is unbearable - 2 seconds per frame or so!
>> Most people don't seem to have performance problems, >>with their radeons, so perhaps my card is a bit different and >>don't fit the driver. >> >> > >The X startup log can also be useful here. I've noticed that if you >get the AGPMode wrong in either direction, the results can be >catastrophic: if it's too low the card is terribly slow and if it's >too high you soon get the X server hanging as it waits forever for >the card to respond to something it hasn't had time to receive (or >something like that, anyway). > > Well, there is no AGPmode for a PCI card, is there?
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