Re: file caching - how to always cache one file

Eric W. Biederman (ebiederm+eric@ccr.net)
19 May 1999 20:16:28 -0500


>>>>> "M" == <mark@hoist.nlcomm.com> writes:

M> Hello there.

M> I have a server here with one large database file that I would like to
M> always be read cached, even if it isn't accessed for awhile..

Have a root owned daemon do:
fd = open(file, ....)
mmap(fd, ....)
mockall();
or just mlock the map.

Not quite trivial, but simipler than a kernel patch.
Eric

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