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The PreFetch Action

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The PreFetch action produces a text file that summarizes the various metrics regarding context switches. The usage for this action is:

-a prefetch [-summary] 
            [-timeunit <unit> [<precision>]]
            [-min <duration>]
Option Description
summary
Display the prefetch scenarios in this trace
timeunit <unit> [<precision>]
Configure time presentation to use time unit <unit> and time precision <precision>. The units can be ns, us, ms, or s
min <duration>
Only show individual timings longer or equal to <duration>

If no activity is selected, summary is selected by default.