Gentoo Archives: gentoo-kernel

From: "M. Edward (Ed) Borasky" <znmeb@×××××××.net>
To: gentoo-kernel@l.g.o
Subject: [gentoo-kernel] 2.6.25 performance monitoring features
Date: Sun, 27 Apr 2008 18:06:32
I'm just getting up to speed on the 2.6.25 kernel. I've got it running, 
thanks to some hacking from VMware gurus (see Bugzilla for the details.) I'm 
very interested in some of the new performance monitoring features.

In particular,

1. I've "discovered" that the block device partition statistics have 
been enhanced, and that there may be some kernel configuration settings 
that need to be documented. This is what I'm personally working on at 
the moment; I'm writing a paper for Computer Measurement Group on the 
block layer statistics, so I will probably hunt this one down myself.

2. There is a tool called "latencytop" at It 
looks like the kernel patches to support it are in 2.6.25. How does one 
go about requesting "latencytop" in the Portage tree, dependent, of 
course, on 2.6.25 being stabilized?

3. The process memory map statistics have been improved. I probably 
won't even look at this one, but if someone else is interested in 
"pioneering", there are some userspace tools at
gentoo-kernel@l.g.o mailing list


Subject Author
Re: [gentoo-kernel] 2.6.25 performance monitoring features Graham Murray <graham@×××××××××××.uk>
Re: [gentoo-kernel] 2.6.25 performance monitoring features Daniel Drake <dsd@g.o>