.TH js_flow.d 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS" .SH NAME js_flow.d - snoop JavaScript execution showing function flow using DTrace. .SH SYNOPSIS .B js_flow.d .SH DESCRIPTION This traces activity from all browsers on the system that are running with JavaScript provider support. Filename and function names are printed if available. .SH OS Any .SH STABILITY Evolving - uses the DTrace JavaScript provider, which may change as additional features are introduced. Check JavaScript/Readme to see what version these scripts are based on. .SH EXAMPLES .TP Default output, # .B js_flow.d .PP .SH FIELDS .TP C CPU-id .TP TIME(us) Time since boot, us .TP FILE Filename that this function belongs to .TP FUNC Function name .SH LEGEND .TP \-> function entry .TP <\- function return .SH WARNING Watch the first column carefully, it prints the CPU-id. If it changes, then it is very likely that the output has been shuffled. .PP .SH DOCUMENTATION See the DTraceToolkit for further documentation under the Examples, Notes and Docs directories. The example files may be especially useful as they aim to demonstrate how to interpret the output. .SH EXIT js_flow.d will run until Ctrl-C is hit. .SH AUTHOR Brendan Gregg [CA, USA] .SH SEE ALSO dtrace(1M) |