On Jul 21, 2005, at 3:04 PM, Mark Wielaard wrote:
Hi,
On Tue, 2005-07-19 at 09:12 -0500, Archie Cobbs wrote:
Casey Marshall wrote:
Attached is a patch I'd like to get some comments on, before I
check it
in, especially if anyone can spot holes in my C. This patch
+ /* FIXME: I'd bet dollars for donuts the compiler optimizes this
+ away. How can we load memory into core??? */
+ for (i = 0; i < size; i += pagesize)
+ {
+ foo += ((int *) address)[i];
+ }
}
You can force the memory to be accessed e.g. like this:
for (i = 0; ... )
*((volatile int *)address + i;
If the system has madvise you probably get the requested functionality
with madvise(address, size, MADV_WILLNEED).
Aha! Yes, I had thought there was a function that did that. Thanks
for the reminder, Mark.
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