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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | FILES | SEE ALSO | BUGS | COLOPHON |
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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
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 example, will produce an ordered sequence of
packets with the three part label for each set of data. This re‐
sult 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 2025-02-02. (At that
time, the date of the most recent commit that was found in the
repository was 2025-01-28.) If you discover 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)
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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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