Date: Tue, 08 Oct 1996 05:15:13 -0700 From: Geert-Jan Plattel <walter@IAEhv.nl> To: questions@freebsd.org Subject: hard resident memory limit? Message-ID: <325A45D1.446B@iaehv.nl>
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Hi guys, We've got this freebox with 128 MB. It is recognized and everything. We use this memory to grab about 115 Megabytes of videodata, using the appropriate MatroxMeteor driver. That's all ok. I got rid off the limits like memoryuse. Nevertheless the system always ends up swapping the pages I need so badly. Quick grabbing is made impossible by this. Is there some hard limit? I don't know how to alter those. I couldn't find it in the documentation. I can only mlock as root? Is this normal? Can and should I change this? As root I can only mlock about 14 MB. Then some 'magic' limit of 40MB is reached. Why? Where can I change this limit? To provide a 'live'display of video, I have the XSHM running. And the grabber driver needs mmapped pages to drop the frames. I tried to mmap the shared memory from the XImage to the video grab board. This way I can XPutIMage the framedata directly without doing an extra bcopy? But this never works. Is there some permission problem? Thanks in advance. Geert-Jan Plattel
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