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#!/usr/sbin/dtrace -Zs
/*
* rb_cpudist.d - measure Ruby on-CPU times for types of operation.
* Written for the Ruby DTrace provider.
*
* $Id: rb_cpudist.d 28 2007-09-13 10:49:37Z brendan $
*
* This traces Ruby activity from all programs running on the system with
* Ruby provider support.
*
* USAGE: rb_cpudist.d # hit Ctrl-C to end
*
* This script prints distribution plots of elapsed time for Ruby
* operations. Use rb_cputime.d for summary reports.
*
* FIELDS:
* 1 Filename of the Ruby program
* 2 Type of call (method/obj-new/gc)
* 3 Name of call
*
* 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
dtrace:::BEGIN
{
printf("Tracing... Hit Ctrl-C to end.\n");
}
ruby*:::function-entry
{
self->depth++;
self->exclude[self->depth] = 0;
self->function[self->depth] = vtimestamp;
}
ruby*:::function-return
/self->function[self->depth]/
{
this->oncpu_incl = vtimestamp - self->function[self->depth];
this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth];
self->function[self->depth] = 0;
self->exclude[self->depth] = 0;
this->file = basename(copyinstr(arg2));
this->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
@types_incl[this->file, "func", this->name] =
quantize(this->oncpu_incl / 1000);
@types_excl[this->file, "func", this->name] =
quantize(this->oncpu_excl / 1000);
self->depth--;
self->exclude[self->depth] += this->oncpu_incl;
}
ruby*:::object-create-start
{
self->object = vtimestamp;
}
ruby*:::object-create-done
/self->object/
{
this->oncpu = vtimestamp - self->object;
self->object = 0;
this->file = basename(copyinstr(arg1));
this->file = this->file != NULL ? this->file : ".";
@types[this->file, "obj-new", copyinstr(arg0)] =
quantize(this->oncpu / 1000);
self->exclude[self->depth] += this->oncpu;
}
ruby*:::gc-begin
{
self->gc = vtimestamp;
}
ruby*:::gc-end
/self->gc/
{
this->oncpu = vtimestamp - self->gc;
self->gc = 0;
@types[".", "gc", "-"] = quantize(this->oncpu / 1000);
self->exclude[self->depth] += this->oncpu;
}
dtrace:::END
{
printf("\nOn-CPU times (us),\n");
printa(" %s, %s, %s %@d\n", @types);
printf("\nExclusive function on-CPU times (us),\n");
printa(" %s, %s, %s %@d\n", @types_excl);
printf("\nInclusive function on-CPU times (us),\n");
printa(" %s, %s, %s %@d\n", @types_incl);
}
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