Red Hat Bugzilla – Bug 55986
iostat statistics in KB/s
Last modified: 2007-04-18 12:38:12 EDT
Description of Problem:
The iostat manpage says, in the BUGS section:
Statistics in KB/s for each block device are not available by default due
to Linux poor disk accounting. For the same reason, a kernel patch
need to be applied for extended statistics to be displayed.
Our performance tuning group only has tools to analyze system performance
in KB/s, not sectors/s. What is the procedure for enabling this (the man
page says it's not available "by default" which means it should be
available by some mechanism)?
Version-Release number of selected component (if applicable):
Steps to Reproduce:
So the request is?
It's a Morgan Stanley feature request. They'd like to have this ability added.
The extended information patch is part of the kernel, and the information has
been removed from the man page to avoid confusion.
sysstat-4.0.3-1 from http://people.redhat.com/teg/sysstat/ has this capability.