record count

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trace-cmd-split

TRACE-CMD-SPLIT(1)														TRACE-CMD-SPLIT(1)

NAME

       trace-cmd-split - split a trace.dat file into smaller files

SYNOPSIS

       trace-cmd split [OPTIONS] [start-time [end-time]]

DESCRIPTION

       The trace-cmd(1) split is used to break up a trace.dat into small files. The start-time specifies where the new file will start at. Using
       trace-cmd-report(1) and copying the time stamp given at a particular event, can be used as input for either start-time or end-time. The
       split will stop creating files when it reaches an event after end-time. If only the end-time is needed, use 0.0 as the start-time.

       If start-time is left out, then the split will start at the beginning of the file. If end-time is left out, then split will continue to the
       end unless it meets one of the requirements specified by the options.

OPTIONS

       -i file
	   If this option is not specified, then the split command will look for the file named trace.dat. This options will allow the reading of
	   another file other than trace.dat.

       -o file
	   By default, the split command will use the input file name as a basis of where to write the split files. The output file will be the
	   input file with an attached '.#' to the end: trace.dat.1, trace.dat.2, etc.

	       This option will change the name of the base file used.

	       -o file	will create file.1, file.2, etc.

       -s seconds
	   This specifies how many seconds should be recorded before the new file should stop.

       -m milliseconds
	   This specifies how many milliseconds should be recorded before the new file should stop.

       -u microseconds
	   This specifies how many microseconds should be recorded before the new file should stop.

       -e events
	   This specifies how many events should be recorded before the new file should stop.

       -p pages
	   This specifies the number of pages that should be recorded before the new file should stop.

	       Note: only one of *-p*, *-e*, *-u*, *-m*, *-s* may be specified at a time.

	       If *-p* is specified, then *-c* is automatically set.

       -r
	   This option causes the break up to repeat until end-time is reached (or end of the input if end-time is not specified).

	       trace-cmd split -r -e 10000

	       This will break up trace.dat into several smaller files, each with at most
	       10,000 events in it.

       -c
	   This option causes the above break up to be per CPU.

	       trace-cmd split -c -p 10

	       This will create a file that has 10 pages per each CPU from the input.

SEE ALSO

       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1),
       trace-cmd-list(1), trace-cmd-listen(1)

AUTHOR

       Written by Steven Rostedt, <rostedt@goodmis.org[1]>

RESOURCES

       git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

COPYING

       Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).

NOTES

	1. rostedt@goodmis.org
	   mailto:rostedt@goodmis.org

								    06/11/2014							TRACE-CMD-SPLIT(1)

Shell Programming and Scripting