User Guide

Intel® VTune™ Profiler User Guide

ID 766319
Date 12/16/2022

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Document Table of Contents

<span class='option'>cpu-mask</span>

Specify CPU(s) for a collect or collect-with action.

GUI Equivalent

Configure Analysis window > WHAT pane > Advanced section > CPU mask option




CPU number or a range of numbers.


The hardware event-based sampling collector collects data on all CPUs in the system.

Actions Modified

collect, collect-with


This option specifies the CPU(s) for which data will be collected during hardware event-based sampling collection. Specify a list of comma-separated CPU IDs (with no spaces) and/or the range(s) of CPU IDs. A range is represented by a beginning and ending ID, separated by a dash.


This example collects samples on four CPUs (1, 3, 4, and 5) for a Linux sample application.

vtune -collect hotspots -knob sampling-mode=hw -cpu-mask 1,3-5  -- /home/test/sample

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