бинарное слияние systemtap на процессор (systemtap per-cpu binary merger)
Имя (Name)
stap-merge - systemtap per-cpu binary merger
Синопсис (Synopsis)
stap-merge [ OPTIONS ] [ INPUT FILENAMES ]
Описание (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.
Параметры (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.
Примеры (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 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.
Файлы (Files)
Important files and their corresponding paths can be located in
the
stappaths (7) manual page.
Смотри также (See also)
stapprobes(3stap),
stappaths(7),
staprun(8),
stapvars(3stap),
stapex(3stap),
stap-server(8),
gdb(1)
Ошибки (баги) (Bugs)
Use the Bugzilla link of the project web page or our mailing
list.
http://sourceware.org/systemtap/ ,<systemtap@sourceware.org>.
