Analyzers
Talk to fellow users of Intel Analyzer tools (Intel VTune™ Profiler, Intel Advisor)
5205 Discussions

vtune and CPU isolation

Jin_M_
Beginner
‎08-21-2014 02:45 PM
569 Views

Can anyone please share if vtune can inspect processes on an isolated CPU? I have a CentOS 5.x host and Vtune 9.1u2. Irqbalance service is running with two CPUs masked in /etc/sysconfig/irqbalance. It seems vtune cannot get information out of a process if it pins to the isolated CPU.

 

Thank you.

0 Kudos

Link Copied

1 Reply
Bernard
Valued Contributor I
‎08-24-2014 12:06 AM
569 Views
If I understood it properly VTune kernel driver is prevented from reading/writing MSR registers on isolated CPU.
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.