User Guide

Contents

cpu-mask

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

Syntax

-cpu-mask
=
<cpu_mask1>
,
<cpu_mask3>
-
<cpu_mask5>
...
Arguments
CPU number or a range of numbers.
Default
ALL
The hardware event-based sampling collector collects data on all CPUs in the system.
Actions Modified
Description
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

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.