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libtiger 0.3.2 (Default branch)
11-25-2008
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PING_PONG(1) PING_PONG(1) NAME
ping_pong - measures the ping-pong byte range lock latency SYNOPSIS
ping_pong [options] <file> <num_locks> ping_pong [-r] [-w] [-m] DESCRIPTION
This measures the ping-pong byte range lock latency. It is especially useful on a cluster of nodes sharing a common lock manager as it will give some indication of the lock managers performance under stress. OPTIONS
-r do reads -w do writes -m use mmap EXAMPLES
Testing lock coherence ping_pong test.dat N Testing IO coherence ping_pong -rw test.dat N SEE ALSO
https://wiki.samba.org/index.php/Ping_pong, ctdb(1), ctdbd(1) COPYRIGHT
/LICENSE Copyright (C) Andrew Tridgell 2002 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see http://www.gnu.org/licenses/. 03/26/2011 PING_PONG(1)