Announcing collectl - new performance linux performance monitor
About 4 years ago I wrote this tool inspired by Rob Urban's collect tool for DEC's Tru64 Unix. What makes this tool as different as collect was in its day is its ability to run at a low overhead and collect tons of stuff. I've expanded the general concept and even include data not available in any other tool such as Infiniband or Lustre data. Collectl can collect it all and present it in a consistent output format. There's even an option to let you generate the data in plottable format.
Far to many features to talk about here but they are discussed on the website for collectl
Ever wonder why ALL tools that monitor linux network stats at 1 second intervals report the wrong numbers? The short answer is because the stats are only updated once ever 0.9765 seconds and unless you have a monitor that can run at fractional intervals like collectl, you'll get wrong numbers! You can read more about it on collectl's website but don't take my word for it. Download it and try it out.
IN solaris, for network high-availability we are using IPMP concept, can u tell me in REDHAT LINUX what we are using... also pls share good step to read & understand the that concept...
Also performance issue in linux what are step & cmd can u tell me??? (2 Replies)
Hi,
May i know the tools which will give the below details in a consolidated fashion for some 'X' duration in single and multicore processors,
1) How many times and how long scheduler code and kernel threads are executing ?
2) Details about each process, time spent in each state (run, wait... (0 Replies)
One of our database server is suddenly became very slow and i have no clue what to do .Please help. I m sharing the performance inforamtion regarding cpu,harddisk,ram .
########CPU Information########
Machine Uptime Information:
uptime
10:25:06 up 16:50, 1 user, load average: 5.84, 5.65,... (10 Replies)
Dear experts ,
Pls advice for any good Tool to monitor the CPU and performance of AIX the system ..
to keep monitoring to show me the utilization of that system .. (12 Replies)
I am getting absolutely dreadful iowait stats on my disks when I am trying to install some applications.
I have 2 physical disks on which I have created 2 separate logical volume groups and a logical volume in each. I have dumped some stats as below
My dual core CPU is not being over utilised... (3 Replies)
Hello,
there. We want to write application on HP-UX to monitor system resource,such as CPU,Network Traffic Load,Disk Usage,etc. Anyone know these API functions except the system command ? thanks. (6 Replies)
Hi everyone,
The last two days I'm researching results of NFS operations on Linux, and I noticed some time difference when read and write.
cat /proc/version : Linux version 2.6.9-42.ELsmp (bhcompile@hs20-bc1-1.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-2)) #1 SMP Wed Jul 12... (1 Reply)
I am an old HP 3000 systems administrator who had to retire the 3000 for some nice pseries AIX boxes. We are a Symitar site and the powers that be do not think we are ready for root acess. I need to find ways within my chains to view system statistics. Being able to wow someone in management... (3 Replies)
PT-SIFT(1p) User Contributed Perl Documentation PT-SIFT(1p)NAME
pt-sift - Browses files created by pt-collect.
SYNOPSIS
Usage: pt-sift FILE|PREFIX|DIRECTORY
pt-sift browses the files created by pt-collect. If you specify a FILE or PREFIX, it browses only files with that prefix. If you specify
a DIRECTORY, then it browses all files within that directory.
RISKS
The following section is included to inform users about the potential risks, whether known or unknown, of using this tool. The two main
categories of risks are those created by the nature of the tool (e.g. read-only tools vs. read-write tools) and those created by bugs.
pt-sift is a read-only tool. It should be very low-risk.
At the time of this release, we know of no bugs that could cause serious harm to users.
The authoritative source for updated information is always the online issue tracking system. Issues that affect this tool will be marked
as such. You can see a list of such issues at the following URL: http://www.percona.com/bugs/pt-sift <http://www.percona.com/bugs/pt-
sift>.
See also "BUGS" for more information on filing bugs and getting help.
DESCRIPTION
pt-sift downloads other tools that it might need, such as pt-diskstats, and then makes a list of the unique timestamp prefixes of all the
files in the directory, as written by the pt-collect tool. If the user specified a timestamp on the command line, then it begins with that
sample of data; otherwise it begins by showing a list of the timestamps and prompting for a selection. Thereafter, it displays a summary
of the selected sample, and the user can navigate and inspect with keystrokes. The keystroke commands you can use are as follows:
d Sets the action to start the pt-diskstats tool on the sample's disk performance statistics.
i Sets the action to view the first INNODB STATUS sample in less.
m Displays the first 4 samples of SHOW STATUS counters side by side with the pt-mext tool.
n Summarizes the first sample of netstat data in two ways: by originating host, and by connection state.
j Select the next timestamp as the active sample.
k Select the previous timestamp as the active sample.
q Quit the program.
1 Sets the action for each sample to the default, which is to view a summary of the sample.
0 Sets the action to just list the files in the sample.
* Sets the action to view all of the sample's files in the less program.
OPTIONS
This tool does not have any command-line options.
ENVIRONMENT
This tool does not use any environment variables.
SYSTEM REQUIREMENTS
This tool requires Bash v3 and the following programs: pt-diskstats, pt-pmp, pt-mext, and pt-align. If these programs are not in your
PATH, they will be fetched from the Internet if curl is available.
BUGS
For a list of known bugs, see http://www.percona.com/bugs/pt-sift <http://www.percona.com/bugs/pt-sift>.
Please report bugs at https://bugs.launchpad.net/percona-toolkit <https://bugs.launchpad.net/percona-toolkit>. Include the following
information in your bug report:
o Complete command-line used to run the tool
o Tool "--version"
o MySQL version of all servers involved
o Output from the tool including STDERR
o Input files (log/dump/config files, etc.)
If possible, include debugging output by running the tool with "PTDEBUG"; see "ENVIRONMENT".
DOWNLOADING
Visit http://www.percona.com/software/percona-toolkit/ <http://www.percona.com/software/percona-toolkit/> to download the latest release of
Percona Toolkit. Or, get the latest release from the command line:
wget percona.com/get/percona-toolkit.tar.gz
wget percona.com/get/percona-toolkit.rpm
wget percona.com/get/percona-toolkit.deb
You can also get individual tools from the latest release:
wget percona.com/get/TOOL
Replace "TOOL" with the name of any tool.
AUTHORS
Baron Schwartz
ABOUT PERCONA TOOLKIT
This tool is part of Percona Toolkit, a collection of advanced command-line tools developed by Percona for MySQL support and consulting.
Percona Toolkit was forked from two projects in June, 2011: Maatkit and Aspersa. Those projects were created by Baron Schwartz and
developed primarily by him and Daniel Nichter, both of whom are employed by Percona. Visit <http://www.percona.com/software/> for more
software developed by Percona.
COPYRIGHT, LICENSE, AND WARRANTY
This program is copyright 2010-2011 Baron Schwartz, 2011-2012 Percona Inc. Feedback and improvements are welcome.
THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2; OR the Perl Artistic License. On UNIX and similar systems, you can issue `man perlgpl' or `man
perlartistic' to read these licenses.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
VERSION
pt-sift 2.1.2
perl v5.14.2 2012-06-15 PT-SIFT(1p)
