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| author | gjb <gjb@FreeBSD.org> | 2014-08-25 19:45:40 +0000 |
|---|---|---|
| committer | gjb <gjb@FreeBSD.org> | 2014-08-25 19:45:40 +0000 |
| commit | f7ed64898b0ccd08889a396b2a9faa00d016c62d (patch) | |
| tree | 22f7727a5031fcbc1015b9892f82ce9a7017cbea | |
| parent | 2ede92f3be87140c0449935591fd2f687d3368e6 (diff) | |
| download | FreeBSD-src-f7ed64898b0ccd08889a396b2a9faa00d016c62d.zip FreeBSD-src-f7ed64898b0ccd08889a396b2a9faa00d016c62d.tar.gz | |
Document r269846, vfs.zfs.arc_average_blocksize.
Sponsored by: The FreeBSD Foundation
| -rw-r--r-- | release/doc/en_US.ISO8859-1/relnotes/article.xml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/release/doc/en_US.ISO8859-1/relnotes/article.xml b/release/doc/en_US.ISO8859-1/relnotes/article.xml index 209bcb6..90f6ef0 100644 --- a/release/doc/en_US.ISO8859-1/relnotes/article.xml +++ b/release/doc/en_US.ISO8859-1/relnotes/article.xml @@ -498,6 +498,18 @@ keep their active state</para> </listitem> </itemizedlist> + + <para revision="269846">The default &man.zfs.8; + <acronym>ARC</acronym> hash table size has been increased, + and a new &man.loader.8; tunable, + <literal>vfs.zfs.arc_average_blocksize</literal>, has been + added. Previously, the hash table could be too small, which + would lead to long hash chains and limit performance for + cached reads. The + <literal>vfs.zfs.arc_average_blocksize</literal> tunable + allows overriding the default block size. The previous + default was 65536, and default of the new &man.loader.8; + tunable is 8192.</para> </sect3> </sect2> |
