Hi cafe, I'm pleased to announce timeplot-0.2.1. http://hackage.haskell.org/package/timeplot This is a tool for visualizing time series from log files. I'm myself using it for diagnosing performance of distributed systems: I aggregate their logs and plot various things, such as the number of tasks executing on each machine of the cluster, or quantiles of database query times, etc. See pretty pictures on haskellwiki: http://www.haskell.org/haskellwiki/Timeplot This version has several changes, which together raised the program's usefulness for me tremendously: - The program now builds and works on Windows! You just need gtk2hs. I got rid of strptime and pcre dependencies (strptime is built from bundled and patched source, and I use regex-tdfa by Chris Kuklewicz). - Support for millisecond precision on charts (thanks to the new 0.14 version of Tim Docker's excellent Chart library) - Support for millisecond precision in input (because I re-did strptime to compile from scratch with support for the %OS pattern, which recognizes fractional seconds) - Support for selecting a range of the input (however, non-interactively) with "-fromTime/-toTime" - Support for "duration" plots: given an event track (where events of something beginning or ending are recorded), you can produce all kinds of plots over the durations of these events. - Support for colored "status" plots: now event tracks represent not purely the presence or absence of an active event, but an event track can be colored, representing several states of a subsystem or subprocess. Please use the program and provide feedback :) I have a hope that it could become a reasonably widely used tool for the kinds of tasks that I use it for. -- Eugene Kirpichov Senior Software Engineer, Grid Dynamics http://www.griddynamics.com/