lkml.org 
[lkml]   [2012]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[PATCH v4 0/3] KVM: perf: kvm events analysis tool
Changlog:
There are some changes from David Ahern's review:
- let the tool to be off-box analysis by getting cpu isa
from HEADER_CPUID feature and removing max-vcpu related code.

- attach per vcpu record structure to the thread by adding a void pointer
in "struct thread".

- remove unnecessary tool argument(-v).

The output example is following:
# ./perf kvm-events report --event mmio --vcpu 3
Warning: Error: expected type 5 but read 4
Warning: Error: expected type 5 but read 0
Warning: unknown op '}'


Analyze events for VCPU 3:

MMIO Access Samples Samples% Time% Avg time

0xfee00380:W 45534 78.00% 84.76% 5.27us ( +- 0.77% )
0xfee00300:W 4280 7.33% 9.37% 6.20us ( +- 1.91% )
0xfee00300:R 4280 7.33% 3.34% 2.21us ( +- 1.53% )
0xfee00310:W 4280 7.33% 2.52% 1.67us ( +- 0.71% )

Total Samples:58374, Total events handled time:283257.68us.



\
 
 \ /
  Last update: 2012-02-09 10:09    [W:0.106 / U:0.376 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site