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CentOS 7.0 - man page for stap-merge (centos section 1)

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STAP-MERGE(1)									    STAP-MERGE(1)

NAME
       stap-merge - systemtap per-cpu binary merger

SYNOPSIS
       stap-merge [ OPTIONS ] [ INPUT FILENAMES ]

DESCRIPTION
       The  stap-merge	executable  applies when the -b option has been used while running a stap
       script.	The -b option will generate files per-cpu, based on  the  timestamp  field.  Then
       stap-merge will merge and sort through the per-cpu files based on the timestamp field.

OPTIONS
       The systemtap merge executable supports the following options.

       -v     Verbose mode, displays three extra fields per set of collected data.

	      [cpunumber,sequencenumberofdata,thelengthofthedataset]

       -o OUTPUT_FILENAME

	      Specify  the  name of the file you would like the output to be redirected into.  If
	      this option is not specified than the output will be pushed to standard out.

EXAMPLES
	      $ stap -v -b -e 'probe syscall.open { printf("%s(%d) open\n",
	      execname(), pid()) }'

       This should result in several stpd_cpu files (each labled with a number representing which
       cpu the file was produced from).

	      $ stap-merge -v stpd_cpu0 stpd_cpu1

       Running the stap-merge program in the same directory as the stap script earlier in the ex-
       ample, will produce an ordered sequence of packets with the three part label for each  set
       of  data.   This  result will be pushed through the standard output.  An output file could
       have been specified using the "-o" option.

FILES
       Important files and their corresponding paths can be located in the
	      stappaths(7) manual page.

SEE ALSO
       stapprobes(3stap),
       stappaths(7),
       staprun(8),
       stapvars(3stap),
       stapex(3stap),
       stap-server(8),
       gdb(1)

BUGS
       Use   the   Bugzilla   link   of   the	project   web	page   or   our   mailing   list.
       http://sourceware.org/systemtap/,<systemtap@sourceware.org>.

										    STAP-MERGE(1)
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