Comments on: Linux Performance Tools To Troubleshoot Problems

By: kanth

kanth — Mon, 06 Sep 2010 05:36:27 +0000

Q. Lets say you have a remote machine on which your server application runs. The remote server is linux based. Mention what all steps you would do to IDENTIFY and SOLVE each of the following two problems:
1. The server is not reachable
2. The server is running slow

By: ajay malhotra

ajay malhotra — Mon, 22 Feb 2010 19:51:14 +0000

I had the same problem with $ sar. On a CentOS box, install sysstat using $ yum install sysstat if you are missing sar altogether. Then let it run a couple of cron jobs (sa1 and sa2 - sa1 runs every 10 mins, sa2 runs close to midnight). If you can't wait till midnight then run $ /usr/lib64/sa/sa2 -A but be prepared to see limited information

By: Ram

Ram — Mon, 16 Mar 2009 10:53:15 +0000

sar 1 5

By: Matt

Matt — Tue, 03 Mar 2009 22:58:19 +0000

These tools seem to be find for looking at the overall performance of a server, but is there a tool that can be used to see specifically at a certain process and measure the impact of that process on the system?

By: Chiron613

Chiron613 — Thu, 15 Jan 2009 23:47:54 +0000

Hmm… many of these worked, except for sar. It keeps telling me:

Cannot open /var/log/sysstat/sa15: No such file or directory

I wonder what the problem is.

However, some of those other utilities are new to me. It’s nice to learn of them.

By: Mark Seger

Mark Seger — Sat, 08 Dec 2007 01:11:52 +0000

one link does it all! check out http://collectl.sourceforge.net/ for all your performance monitoring needs.
-mark

By: Anonymous

Anonymous — Tue, 11 Jul 2006 04:54:00 +0000

usefull, nice.

By: Anonymous

Anonymous — Thu, 06 Jul 2006 20:25:00 +0000

cool stuff