No lock file: Preventing multiple instance of a script Post: 302574683

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LEARN ABOUT CENTOS

perf-lock

PERF-LOCK(1)							    perf Manual 						      PERF-LOCK(1)

NAME

       perf-lock - Analyze lock events

SYNOPSIS

       perf lock {record|report|script|info}

DESCRIPTION

       You can analyze various lock behaviours and statistics with this perf lock command.

	   'perf lock record <command>' records lock events
	   between start and end <command>. And this command
	   produces the file "perf.data" which contains tracing
	   results of lock events.

	   'perf lock report' reports statistical data.

	   'perf lock script' shows raw lock events.

	   'perf lock info' shows metadata like threads or addresses
	   of lock instances.

COMMON OPTIONS

       -i, --input=<file>
	   Input file name. (default: perf.data unless stdin is a fifo)

       -v, --verbose
	   Be more verbose (show symbol address, etc).

       -D, --dump-raw-trace
	   Dump raw trace in ASCII.

REPORT OPTIONS

       -k, --key=<value>
	   Sorting key. Possible values: acquired (default), contended, wait_total, wait_max, wait_min.

INFO OPTIONS

       -t, --threads
	   dump thread list in perf.data

       -m, --map
	   dump map of lock instances (address:name table)

SEE ALSO

       perf(1)

perf								    06/30/2014							      PERF-LOCK(1)