Paessler: Easy to Use With Enterprise Power. Free Trial
A low-code dashboard makes monitoring intuitive for any admin, while scripting and custom sensors give experts full control.
You shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
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This is now also available here github.com/sharkcz/collectl.git
Collectl is a light-weight performance monitoringtool capable of reporting interactively as well as logging to disk. It reports statistics on cpu, disk, infiniband, lustre, memory, network, nfs, process, quadrics, slabs and more in easy to read format.
httest is a script based tool for testing and benchmarking web applications, web servers, proxy servers and web browsers. httest can emulate clients and servers in the same test script, very useful for testing proxys.
It's a very light Redhat Linux and Oracle OVM System Performance Monitoringtool written in Perl using rrdtool for Database and Graphing. Allows you to query the RRD database given a set of dates and generates a web based graphs. Easy to install. Uses less disk space than most performance monitoringtool. Data of each host monitored is kept for 2 years and occupy less that 25 MB of disk space.
WebInject is a tool for automated testing of web applications and web services. It can be used to test system components with HTTP interfaces, as a test harness to create a suite of functional and regression tests, or for service-level monitoring.