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Date: Tue, 11 Mar 2014 21:32:31 -0400 (EDT)
From: Rick Macklem <rmacklem@uoguelph.ca>
To: Freebsd hackers list <freebsd-hackers@freebsd.org>
Message-ID: <829240556.20994461.1394587951698.JavaMail.root@uoguelph.ca>
Subject: kernel memory allocator: UMA or malloc?
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Cc: Garrett Wollman <wollman@freebsd.org>
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Hi,

I've been working on a patch provided by wollman@, where
he uses UMA instead of malloc() to allocate an iovec array
for use by the NFS server's read.

So, my question is:
When is it preferable to use UMA(9) vs malloc(9) if the
allocation is going to be a fixed size?

Thanks in advance for any info, rick