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From: teigland@sourceware.org
To: cluster-cvs@sources.redhat.com
Subject: cluster/group/gfs_controld cpg.c lock_dlm.h ma ...
Date: Wed, 28 Nov 2007 20:49:00 -0000 [thread overview]
Message-ID: <20071128204908.32750.qmail@sourceware.org> (raw)
CVSROOT: /cvs/cluster
Module name: cluster
Changes by: teigland@sourceware.org 2007-11-28 20:49:08
Modified files:
group/gfs_controld: cpg.c lock_dlm.h main.c plock.c recover.c
Log message:
A performance optimization for plocks. This speeds up locks that are
repeatedly accessed by processes on a single node. Plocks used by
processes on multiple nodes work the same way as before. The
optimization is disabled by default, and can be enabled by setting
<gfs_controld plock_ownership="1"/>
in cluster.conf, or by starting gfs_controld with "-o1". It is disabled
by default because enabling it breaks compatibility with previous versions
of gfs_controld. If all nodes in the cluster are running this version,
then plock_ownership can be enabled.
The plock_ownership mode needs extensive testing. This also introduces
some minor changes when plock_ownership is disabled, so new testing is
also required in that mode. Abhi and I worked on this together.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/group/gfs_controld/cpg.c.diff?cvsroot=cluster&r1=1.13&r2=1.14
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/group/gfs_controld/lock_dlm.h.diff?cvsroot=cluster&r1=1.30&r2=1.31
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/group/gfs_controld/main.c.diff?cvsroot=cluster&r1=1.31&r2=1.32
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/group/gfs_controld/plock.c.diff?cvsroot=cluster&r1=1.33&r2=1.34
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/group/gfs_controld/recover.c.diff?cvsroot=cluster&r1=1.33&r2=1.34
next reply other threads:[~2007-11-28 20:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-28 20:49 teigland [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-12-05 22:11 teigland
2006-08-09 19:35 teigland
2006-06-15 15:27 teigland
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