Red Hat ENTERPRISE LINUX 3 - USING CPP Manual do Utilizador descarregar pdf (Página 52)

Red Hat Developer Day – 26 June 201252

Oprofile

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Requires root access to run (opcontrol binary)

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Root password will be asked for

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Set-up required before first profiling under Eclipse

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Find install location of org.eclipse.linuxtools.oprofile.core plug-in

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Go to natives/linux/scripts directory and run “sh ./install.sh” as root

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Oprofile options found in Profile Configuration

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Default Profile As -> Oprofile performs CPU_CLK_UNHALTED

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Snapshot at various intervals (sometimes no data collected)

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If data collected, shown in Oprofile View as tree

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Opening tree reveals percentage times in code

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Double-clicking on locations will bring up editor where location known

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Red Hat ENTERPRISE LINUX 3 - USING CPP Manual do Utilizador Página 52