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<sect2 id="ms-manual.forkingprograms" xreflabel="Forking Programs">
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<title>Forking Programs</title>
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<para>If your program forks, the child will inherit all the profiling data that
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has been gathered for the parent.</para>
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<para>If the output file format string (controlled by
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<option>--cachegrind-out-file</option>) does not contain <option>%p</option>,
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then the outputs from the parent and child will be intermingled in a single
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output file, which will almost certainly make it unreadable by