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Re: where is my memory?
der Mouse wrote:
total memory = 2047 MB
avail memory = 1999 MB
total memory = 256 MB
avail memory = 239 MB
Some graphics chips, especially on lower-end machines, use main
memory, thus making it unavailable to the CPU.
It's not that simple. I've seen this for a very long time, including
on machines with no graphics chips at all, such as 4.3 on a VAX 750.
Here's a live example; this is quoted from /var/run/dmesg.boot on a
SPARCstation LX that's my desktop at one of my workplaces:
total memory = 48688 KB
avail memory = 41676 KB
That's with a cg6 with its own private framebuffer RAM.
Well, for VAXen, the difference between total memory, and available
format_bytes(pbuf, sizeof(pbuf), avail_end);
printf("total memory = %s\n", pbuf);
panicstr = NULL;
#if VAX46 || VAX48 || VAX49 || VAX53 || VAXANY
minaddr = 0;
* Allocate a submap for physio. This map effectively limits the
* number of processes doing physio at any one time.
phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
VM_PHYS_SIZE, 0, false, NULL);
format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free));
printf("avail memory = %s\n", pbuf);
So, obviously a malloc for physio... :-)
Don't know about any other ports, but the code is there for the
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