How can I change memory allocation policy on Linux?
On Solaris it's done system-wide with lgrp_mem_default_policy (man page) and pmadvise (man page) is a per process equivalent that does not require root.
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Linux uses different memory management subsystems than Solaris, of course, so not every tuneable has an equivalent. Looks like the numactl utility is the closest analogue for this particular setting. Look at man 8 numactl and man 2 set_mempolicy.
mattdm
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+1 Look right. Let me check it out... – Aleksandr Levchuk Nov 16 '10 at 21:02
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Yes, this is it. – Aleksandr Levchuk Nov 16 '10 at 21:14
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I would add `apt-get install numactl` and `apt-get install libnuma-dev` (for man pages) to the answer. – Aleksandr Levchuk Nov 16 '10 at 21:18
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1Unless you're on Red Hat / Fedora, in which case that won't work. You didn't specify. :) (In fact, on those distributions, the numactl utility, with its man pages, are in the Base group and so installed by default on every system.) – mattdm Nov 16 '10 at 21:30