trace-cmd-split - Online in the Cloud

PROGRAM:

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.

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