using mfs of size > 64Mb and system stability
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Jan 10 02:11:46 PST 2005
In message <20050110100840.29845.qmail at web30301.mail.mud.yahoo.com>, Barath S w
rites:
>Initially, I didn't go for swap based fs as I felt
>that the memory occupied will be from the swap area.
>As you are saying that the allocation will be from
>buffer/cache, I will test swap-mfs.
malloc backing should not be used for large disks.
If you _truly_ want to have a large disk which is memory backed,
you should consider using the "preload" backing as this will withdraw
the memory entirely from the kernels use.
In general, the benefit from using RAM disks is much smaller than
most people realize.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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