Read about a recent update to the Chime visualization tool for DTrace: http://blogs.sun.com/tomee/entry/chime_automatic_drilldown This update adds "drilldown" capability to displays generated from the command line, as in the example discussed in the blog: % chime -ktn ''syscall:::entry { @[execname] = count(); }'' -T "System Calls" You request more detail about selected items of interest, and Chime tweaks your DTrace program to get it. For those who missed earlier updates, Chime also includes many scripts from the DTraceToolkit. Feedback is welcome at chime-discuss at opensolaris.org. Thanks, Tom