Date: Tue, 19 May 2015 19:35:36 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Review of patch that makes NFSv4 server hash table sizing tunable Message-ID: <1556767526.41012297.1432078536125.JavaMail.root@uoguelph.ca>
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I think the subject line says it. There is a patch.. https://reviews.freebsd.org/D2596 which makes the hash table sizes for the NFSv4 server tunable. It does not change the default sizes of the hash tables and, since these tables are only used by NFSv4, should have no effect on NFSv3. I do not believe there is sufficient experience with the NFSv4 server under heavy client load to autotune these hash tables, but hopefully tunable hash table sizing will provide further experience/testing of different sizes. Testing of a single client did not show that larger tables had any significant effect on performance, but a server handling many NFSv4 clients may need larger tables. Please review/comment on this patch, rick
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