#!/usr/sbin/dtrace -Zs /* * rb_stat.d - Ruby operation stats using DTrace. * Written for the Ruby DTrace provider. * * $Id: rb_stat.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ * * This traces activity from all Ruby programs on the system that are * running with Ruby provider support. * * USAGE: rb_stat.d [interval [count]] * * FIELDS: * EXEC/s Ruby programs executed per second, including * those without Ruby provider support * METHOD/s Methods called, per second * OBJNEW/s Objects created, per second * OBJFRE/s Objects freed, per second * RAIS/s Raises, per second * RESC/s Rescues, per second * GC/s Garbage collects, per second * * The numbers are counts for the interval specified. The default interval * is 1 second. * * If you see a count in "EXECS" but not in the other columns, then your * Ruby software is probably not running with the DTrace Ruby provider. * See Ruby/Readme. * * Filename and method names are printed if available. * * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. * * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at Docs/cddl1.txt * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * CDDL HEADER END * * 09-Sep-2007 Brendan Gregg Created this. */ #pragma D option quiet #pragma D option defaultargs inline int SCREEN = 21; dtrace:::BEGIN { execs = methods = objnew = objfree = gc = raised = rescue = 0; lines = SCREEN + 1; interval = $1 ? $1 : 1; counts = $2 ? $2 : -1; secs = interval; first = 1; } profile:::tick-1sec { secs--; } /* * Print Header */ dtrace:::BEGIN, profile:::tick-1sec /first || (secs == 0 && lines > SCREEN)/ { printf("%-20s %8s %8s %8s %8s %6s %6s %6s\n", "TIME", "EXEC/s", "METHOD/s", "OBJNEW/s", "OBJFRE/s", "RAIS/s", "RESC/s", "GC/s"); lines = 0; first = 0; } /* * Tally Data */ proc:::exec-success /execname == "ruby"/ { execs++; } ruby*:::function-entry { methods++; } ruby*:::object-create-start { objnew++; } ruby*:::object-free { objfree++; } ruby*:::raise { raised++; } ruby*:::rescue { rescue++; } ruby*:::gc-begin { gc++; } /* * Print Output */ profile:::tick-1sec /secs == 0/ { printf("%-20Y %8d %8d %8d %8d %6d %6d %6d\n", walltimestamp, execs / interval, methods / interval, objnew / interval, objfree / interval, raised / interval, rescue / interval, gc / interval); execs = methods = objnew = objfree = gc = raised = rescue = 0; secs = interval; lines++; counts--; } /* * End */ profile:::tick-1sec /counts == 0/ { exit(0); }