1 files changed, 80 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Ruby/rb_malloc.d b/cddl/contrib/dtracetoolkit/Ruby/rb_malloc.d
new file mode 100755
index 0000000..891b840
--- /dev/null
+++ b/cddl/contrib/dtracetoolkit/Ruby/rb_malloc.d
@@ -0,0 +1,80 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * rb_malloc.d - Ruby operations and libc malloc statistics.
+ *               Written for the Ruby DTrace provider.
+ *
+ * $Id: rb_malloc.d 20 2007-09-12 09:28:22Z brendan $
+ *
+ * WARNING: This script is not 100% accurate; This prints libc malloc() byte
+ * distributions by "recent" Ruby operation, which we hope will be usually
+ * relevant. This is an experimental script that may be improved over time.
+ *
+ * USAGE: rb_malloc.d { -p PID | -c cmd }	# hit Ctrl-C to end
+ *
+ * FIELDS:
+ *		1		Filename of the Ruby program
+ *		2		Type of operation (method/objnew/startup)
+ *		3		Name of operation
+ *
+ * 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
+
+self string filename;
+
+dtrace:::BEGIN
+{
+	printf("Tracing... Hit Ctrl-C to end.\n");
+}
+
+ruby$target:::function-entry
+{
+	self->file = basename(copyinstr(arg2));
+	self->type = "method";
+	self->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
+}
+
+ruby$target:::object-create-start
+{
+	self->file = basename(copyinstr(arg1));
+	self->type = "objnew";
+	self->name = copyinstr(arg0);
+}
+
+pid$target:libc:malloc:entry
+/self->file != NULL/
+{
+	@mallocs[self->file, self->type, self->name] = quantize(arg0);
+}
+
+pid$target:libc:malloc:entry
+/self->file == NULL/
+{
+	@mallocs["ruby", "startup", "-"] = quantize(arg0);
+}
+
+
+dtrace:::END
+{
+	printf("Ruby malloc byte distributions by recent Ruby operation,\n");
+	printa("   %s, %s, %s %@d\n", @mallocs);
+}