1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * rb_malloc.d - Ruby operations and libc malloc statistics.
1N/A * Written for the Ruby DTrace provider.
1N/A *
1N/A * $Id: rb_malloc.d 20 2007-09-12 09:28:22Z brendan $
1N/A *
1N/A * WARNING: This script is not 100% accurate; This prints libc malloc() byte
1N/A * distributions by "recent" Ruby operation, which we hope will be usually
1N/A * relevant. This is an experimental script that may be improved over time.
1N/A *
1N/A * USAGE: rb_malloc.d { -p PID | -c cmd } # hit Ctrl-C to end
1N/A *
1N/A * FIELDS:
1N/A * 1 Filename of the Ruby program
1N/A * 2 Type of operation (method/objnew/startup)
1N/A * 3 Name of operation
1N/A *
1N/A * Filename and method names are printed if available.
1N/A *
1N/A * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
1N/A *
1N/A * CDDL HEADER START
1N/A *
1N/A * The contents of this file are subject to the terms of the
1N/A * Common Development and Distribution License, Version 1.0 only
1N/A * (the "License"). You may not use this file except in compliance
1N/A * with the License.
1N/A *
1N/A * You can obtain a copy of the license at Docs/cddl1.txt
1N/A * or http://www.opensolaris.org/os/licensing.
1N/A * See the License for the specific language governing permissions
1N/A * and limitations under the License.
1N/A *
1N/A * CDDL HEADER END
1N/A *
1N/A * 09-Sep-2007 Brendan Gregg Created this.
1N/A */
1N/A
1N/A#pragma D option quiet
1N/A
1N/Aself string filename;
1N/A
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("Tracing... Hit Ctrl-C to end.\n");
1N/A}
1N/A
1N/Aruby$target:::function-entry
1N/A{
1N/A self->file = basename(copyinstr(arg2));
1N/A self->type = "method";
1N/A self->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
1N/A}
1N/A
1N/Aruby$target:::object-create-start
1N/A{
1N/A self->file = basename(copyinstr(arg1));
1N/A self->type = "objnew";
1N/A self->name = copyinstr(arg0);
1N/A}
1N/A
1N/Apid$target:libc:malloc:entry
1N/A/self->file != NULL/
1N/A{
1N/A @mallocs[self->file, self->type, self->name] = quantize(arg0);
1N/A}
1N/A
1N/Apid$target:libc:malloc:entry
1N/A/self->file == NULL/
1N/A{
1N/A @mallocs["ruby", "startup", "-"] = quantize(arg0);
1N/A}
1N/A
1N/A
1N/Adtrace:::END
1N/A{
1N/A printf("Ruby malloc byte distributions by recent Ruby operation,\n");
1N/A printa(" %s, %s, %s %@d\n", @mallocs);
1N/A}