Author: gjb
Date: Sun Apr 13 22:41:24 2014
New Revision: 264430
URL: http://svnweb.freebsd.org/changeset/base/264430
Log:
Document r260338
Sponsored by: The FreeBSD Foundation
Modified:
stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml
Modified: stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml
==============================================================================
--- stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml Sun Apr 13
22:41:22 2014 (r264429)
+++ stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml Sun Apr 13
22:41:24 2014 (r264430)
@@ -118,7 +118,13 @@
<sect2 xml:id="kernel">
<title>Kernel Changes</title>
- <para> </para>
+ <para revision="260338">The <literal>vfs.zfs.zio.use_uma</literal>
+ &man.sysctl.8; has been re-enabled. On multi-CPU machines with
+ enough RAM, this can easily double &man.zfs.8; performance or
+ reduce CPU usage in half. It was originally disabled due to
+ memory and <acronym>KVA</acronym> exhastion problem reports,
+ which should be resolved due to several change in the VM
+ subsystem.</para>
<sect3 xml:id="kernel-virtualization">
<title>Virtualization support</title>
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