lkml.org 
[lkml]   [2011]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjecthow to use 'perf kvm'?
Hello,

Can someone tell me how to use the subcommand 'kvm' of the perf tool?
I'm trying to use it this way:

perf kvm --guest --guestkallsyms kallsyms top

where kallsyms is copied from the kvm guest. But nothing useful is
displayed, only some headers:


-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
PerfTop: 0 irqs/sec kernel:-nan% us:-nan% guest kernel:-nan% guest us:-nan% exact: -nan% [1000Hz cycles], (all, 2 CPUs)
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

samples pcnt DSO
_______ _____

exiting.

Thanks in advance.

--
Han Pingtian
Quality Engineer
hpt @ #kernel-qe
Red Hat, Inc
Freedom ... courage ... Commitment ... ACCOUNTABILITY


\
 
 \ /
  Last update: 2011-03-04 09:27    [W:0.542 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site