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diff --git a/Documentation/trace-cmd/trace-cmd-split.1.txt b/Documentation/trace-cmd/trace-cmd-split.1.txt new file mode 100644 index 00000000..25385796 --- /dev/null +++ b/Documentation/trace-cmd/trace-cmd-split.1.txt @@ -0,0 +1,107 @@ +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. + +*-C* 'cpu':: + This option will split for a single CPU. Only the cpu named will be extracted + from the file. + + trace-cmd split -C 1 + + This will split out all the events for cpu 1 in the file. + +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> + +RESOURCES +--------- +https://git.kernel.org/pub/scm/utils/trace-cmd/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). + |