cpu-mask
cpu-mask
Specify CPU(s) for a collect or collect-with action.
GUI Equivalent
Configure Analysis
window >
WHAT
pane >
Advanced
section >
CPU mask
option
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.
Example
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