Date: Thu, 27 May 2010 16:48:42 -0700 From: Dave Hayes <dave@jetcafe.org> To: freebsd-stable@freebsd.org Subject: Locking a file backed mdconfig into memory Message-ID: <201005272348.o4RNmgWh014243@hugeraid.jetcafe.org>
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On FreeBSD 7.3-STABLE I'm mounting a DVD and doing something like this: mdconfig -a -t vnode -o reserve -o readonly -f /dvd/file so that /dvd/file becomes the backing storage for my memory disk. Now if the system is under severe memory pressure, will this memory get swapped out, causing a read from the DVD? How would I tell the system to never swap this file out of ram, even under severe memory pressure? The idea is to load this backing storage once and only once from the DVD into memory and leave it there. Thanks in advance. -- Dave Hayes - Consultant - Altadena CA, USA - dave@jetcafe.org >>> The opinions expressed above are entirely my own <<< Have you noticed how economical the human race is with it's idols? It sets them up, enjoys them, then falls upon them and devours them until nothing is left. Even the complete consumption of the idol, if it is another human being, is not the end. There are then hundreds of years worth of argument and analysis to be worked through...
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