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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | FILES | SEE ALSO | BUGS | COLOPHON |
STAP-MERGE(1) General Commands Manual STAP-MERGE(1)
stap-merge - systemtap per-cpu binary merger
stap-merge [ OPTIONS ] [ INPUT FILENAMES ]
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.
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.
$ 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 num‐
ber 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 example, 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.
Important files and their corresponding paths can be located in the
stappaths (7) manual page.
stapprobes(3stap),
stappaths(7),
staprun(8),
stapvars(3stap),
stapex(3stap),
stap-server(8),
gdb(1)
Use the Bugzilla link of the project web page or our mailing list.
http://sourceware.org/systemtap/ ,<systemtap@sourceware.org>.
This page is part of the systemtap (a tracing and live-system
analysis tool) project. Information about the project can be found
at ⟨https://sourceware.org/systemtap/⟩. If you have a bug report for
this manual page, send it to systemtap@sourceware.org. This page was
obtained from the project's upstream Git repository
⟨git://sourceware.org/git/systemtap.git⟩ on 2017-07-05. If you dis‐
cover any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
STAP-MERGE(1)