NAME

js_flowinfo.d - JavaScript function flow with info using DTrace.

SYNOPSIS

js_flowinfo.d

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.

OS

Any

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.

EXAMPLES

Default output,: # js_flowinfo.d

FIELDS

C: CPU-id
PID: Process ID
DELTA(us): Elapsed time from previous line to this line
FILE: Filename of the JavScript program
LINE: Line number of filename
TYPE: Type of call (func)
FUNC: Function name

LEGEND

->: function entry
<-: function return

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.

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.

EXIT

js_flowinfo.d will run until Ctrl-C is hit.

AUTHOR

Brendan Gregg [CA, USA]