Schedtop utility

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=Concept=
 
=Concept=
  
scheduler statistics visualization tool
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'''scheduler statistics visualization tool'''
  
This utility will process statistics from /proc/schedstat such that the
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This utility will process various scheduler related statistics (e.g. /proc/schedstat)
busiest stats will bubble up to the top. It can alternately be sorted by
+
such that the "busiest" stats (greatest delta) will bubble up to the top similar to
the largest stat, or by name. Stats can be included or excluded based on
+
the ubiquitous "top" utility. It can alternately be sorted by the stat's value, or
reg-ex pattern matching.
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by name. Stats can be inclusively or exclusively filtered based on reg-ex pattern
 +
matching.
  
 
=Usage=
 
=Usage=
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   -x [ --exclude ] arg    reg-ex exclusive filter (default="^$")
 
   -x [ --exclude ] arg    reg-ex exclusive filter (default="^$")
 
   -s [ --sort    ] arg    sort-by: n=name, v=value, d=delta (default='d')
 
   -s [ --sort    ] arg    sort-by: n=name, v=value, d=delta (default='d')
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 +
Press ''Cntrl-C'' to exit the utility
  
  

Revision as of 17:35, 21 October 2008

Contents

Concept

scheduler statistics visualization tool

This utility will process various scheduler related statistics (e.g. /proc/schedstat) such that the "busiest" stats (greatest delta) will bubble up to the top similar to the ubiquitous "top" utility. It can alternately be sorted by the stat's value, or by name. Stats can be inclusively or exclusively filtered based on reg-ex pattern matching.

Usage

schedtop <options>

 -h [ --help    ]         produces help message
 -p [ --period  ] arg     refresh period (default=1s)
 -i [ --include ] arg     reg-ex inclusive filter (default=".*")
 -x [ --exclude ] arg     reg-ex exclusive filter (default="^$")
 -s [ --sort    ] arg     sort-by: n=name, v=value, d=delta (default='d')

Press Cntrl-C to exit the utility


Kernel Configuration

You need to enable the scheduler statistics in your .config. This utility will only work with v14 of the stats (current as of this writing)

RPM Repositories

A variety of platforms can be found available here:

http://download.opensuse.org/repositories/home:/ghaskins

Direct links to a subset of the available builds:

OpenSUSE 11 x86_64 i586
OpenSUSE 10.3 x86_64 i586
SUSE Linux Enterprise 10 x86_64 i586
RHEL 5 x86_64 i586
Fedora 9 x86_64 i586

Source Code

GIT Tree:

   git clone git://git.kernel.org/pub/scm/linux/kernel/git/ghaskins/schedtop.git

Tarball:

   ftp://ftp.novell.com/dev/ghaskins/schedtop.tar.gz

or

Browse the Source

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