1TRACE-CMD-SPLIT(1) [FIXME: manual] TRACE-CMD-SPLIT(1)
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6 trace-cmd-split - split a trace.dat file into smaller files
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9 trace-cmd split [OPTIONS] [start-time [end-time]]
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12 The trace-cmd(1) split is used to break up a trace.dat into small
13 files. The start-time specifies where the new file will start at. Using
14 trace-cmd-report(1) and copying the time stamp given at a particular
15 event, can be used as input for either start-time or end-time. The
16 split will stop creating files when it reaches an event after end-time.
17 If only the end-time is needed, use 0.0 as the start-time.
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19 If start-time is left out, then the split will start at the beginning
20 of the file. If end-time is left out, then split will continue to the
21 end unless it meets one of the requirements specified by the options.
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24 -i file
25 If this option is not specified, then the split command will look
26 for the file named trace.dat. This options will allow the reading
27 of another file other than trace.dat.
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29 -o file
30 By default, the split command will use the input file name as a
31 basis of where to write the split files. The output file will be
32 the input file with an attached ´.#\´ to the end: trace.dat.1,
33 trace.dat.2, etc.
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35 This option will change the name of the base file used.
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37 -o file will create file.1, file.2, etc.
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39 -s seconds
40 This specifies how many seconds should be recorded before the new
41 file should stop.
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43 -m milliseconds
44 This specifies how many milliseconds should be recorded before the
45 new file should stop.
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47 -u microseconds
48 This specifies how many microseconds should be recorded before the
49 new file should stop.
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51 -e events
52 This specifies how many events should be recorded before the new
53 file should stop.
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55 -p pages
56 This specifies the number of pages that should be recorded before
57 the new file should stop.
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59 Note: only one of *-p*, *-e*, *-u*, *-m*, *-s* may be specified at a time.
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61 If *-p* is specified, then *-c* is automatically set.
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63 -r
64 This option causes the break up to repeat until end-time is reached
65 (or end of the input if end-time is not specified).
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67 trace-cmd split -r -e 10000
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69 This will break up trace.dat into several smaller files, each with at most
70 10,000 events in it.
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72 -c
73 This option causes the above break up to be per CPU.
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75 trace-cmd split -c -p 10
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77 This will create a file that has 10 pages per each CPU from the input.
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80 trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1),
81 trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1),
82 trace-cmd-reset(1), trace-cmd-list(1), trace-cmd-listen(1)
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85 Written by Steven Rostedt, <rostedt@goodmis.org[1]>
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88 git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
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91 Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted
92 under the terms of the GNU Public License (GPL).
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95 1. rostedt@goodmis.org
96 mailto:rostedt@goodmis.org
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100[FIXME: source] 03/23/2017 TRACE-CMD-SPLIT(1)