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It is well known that, the callgrind analysis tool of the valgrind suit, provides the possibility to start and stop the colection of data via command line instruction callgrind_control -i on or callgrind_control -i off. For instance, the following code will collect data only after the hour.

(sleep 3600; callgrind_control -i on) &
valgrind --tool=callgrind --instr-atstart=no ./myprog

Is there a similar option for the cachegrind tool? if so, how can I use it (I do not find anything in the documentation)? If no, how can I start collecting data after a certain amount of time with cachegrind?

Antonio Ragagnin
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1 Answers1

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As far as I know, there is no such function for Cachegrind.

However, Callgrind is an extension of Cachegrind, which means that you can use Cachegrind features on Callgrind.

For example:

valgrind --tool=callgrind --cache-sim=yes --branch-sim=yes ./myprog

Will measure your programs cache and branch performance as if you where using Cachegrind.

K-J
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