Collectl benchmarks and monitors system health and determine what your system was doing at some time in the past. You can choose to monitor any of a broad set of subsystems which currently include buddyinfo, cpu, disk, inodes, infiniband, lustre, memory, network, nfs, processes, quadrics, slabs, sockets and tcp. 

Collectl could report interrupts at the CPU level. It writes information to the rolling log file and it is also capable to export the data to different formats like s-expression, plot format etc which could be imported in different application to draw graph.

Collectl benchmarks and monitors system health and determine what your system was doing at some time in the past. You can choose to monitor any of a broad set of subsystems which currently include buddyinfo, cpu, disk, inodes, infiniband, lustre, memory, network, nfs, processes, quadrics, slabs, sockets and tcp.

Collectl - Monitors system health

Yamon is a very simple Perl program designed to check whether a server is up-and-running and send an alert to a human when something appears to be broken. It can check for Web server, Email server, DSL line etc.

Yamon - Yet Another Monitoring script 

Munin is a networked resource monitoring tool that can help analyze and monitor the performance of your computers, networks, SANs and applications. It is capable to identify "what's different today" and when the performance problem crops up? Munin has a master/node architecture in which the master connects to all the nodes at regular intervals and asks them for data. It then stores the data in RRD files, and (if needed) updates the graphs. Munin emphasis on Plug and Play. Check out its <A HREF="http://exchange.munin-monitoring.org/" target="_blank">plugin repository</A>. Demo: <A HREF="http://munin.ping.uio.no/" target="_blank">http://munin.ping.uio.no/</A>

Munin is a networked resource monitoring tool that can help analyze and monitor the performance of your computers, networks, SANs and applications. It is capable to identify "what's different today" and when the performance problem crops up?

Munin - resource monitoring tool

Centreon is one of the most flexible and performant monitoring software. It is based upon the most effective Open Source monitoring engine Nagios. Centreon gathers functionalities that are essential to the monitoring of critical infrastructures. It provides real time system monitoring, Load distribution and High availability. It is modular and it could be extended with Plugins like Centreon map, Centreon BI, Google map and much more. It alerts the admin via Email, SMS.

Centreon is one of the most flexible and performant monitoring software. It is based upon the most effective Open Source monitoring engine Nagios. Centreon gathers functionalities that are essential to the monitoring of critical infrastructures.

Centreon - Global IT monitoring

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Collectl - Monitors system health

Yamon - Yet Another Monitoring script

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Centreon - Global IT monitoring

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