Announcing collectl - new performance linux performance monitor

 
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Special Forums News, Links, Events and Announcements Announcing collectl - new performance linux performance monitor
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Old 10-26-2007
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.

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toolbar(3erl)						     Erlang Module Definition						     toolbar(3erl)

NAME
toolbar - GUI for Starting Tools and User Contributions DESCRIPTION
Toolbar makes it easier to use the different Erlang tools - and the user contributions - which are provided. It has a graphical user inter- face with an icon for each tool. Clicking the icon activates the corresponding tool. All tools to be included on Toolbar must have a configuration file containing information about the tool, for example its start function and help information location. Configuration files must have the .tool suffix. When started, Toolbar automatically checks for *.tool files in the current path and adds the corresponding tools. For each ebin directory found in the path, it will also look in a priv directory next to it. This is a feature of the Erlang file structure. EXPORTS
start() -> ok | already_started Creates a window containing tool icons. version() -> string() Returns the current version number of Toolbar. update() -> ok | {error,not_started} Makes a search for new tool files in the current path and adds the corresponding tools to Toolbar window. quit() -> ok | {error,not_started} create_tool_file() -> ok | {error,not_started} Starts the GUI used for creating and editing tool files. add_gs_contribs() -> ok | {error,not_started} Adds the path to the directory where the GS contributions are situated and add the tools found there, if any. Ericsson AB toolbar 1.4.1 toolbar(3erl)