From 4297c1b2d07fec7f50b70e26e3adb4d062b19e15 Mon Sep 17 00:00:00 2001
From: gnn <gnn@FreeBSD.org>
Date: Sat, 12 May 2012 20:38:18 +0000
Subject: Add the remaining scripts from the DTraceToolkit, version 0.99, to
 the vendor tree.

http://www.brendangregg.com/dtrace.html#DTraceToolkit
---
 Python/py_malloc.d | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100755 Python/py_malloc.d

(limited to 'Python/py_malloc.d')

diff --git a/Python/py_malloc.d b/Python/py_malloc.d
new file mode 100755
index 0000000..7f0860e
--- /dev/null
+++ b/Python/py_malloc.d
@@ -0,0 +1,81 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * py_malloc.d - Python libc malloc analysis.
+ *               Written for the Python DTrace provider.
+ *
+ * $Id: py_malloc.d 19 2007-09-12 07:47:59Z brendan $
+ *
+ * This is an expiremental script to identify who is calling malloc() for
+ * memory allocation, and to print distribution plots of the requested bytes.
+ * If a malloc() occured while in a Python function, then that function is
+ * identified as responsible; else the caller of malloc() is identified as
+ * responsible - which will be a function from the Python engine.
+ *
+ * USAGE: py_malloc.d { -p PID | -c cmd }	# hit Ctrl-C to end
+ *
+ * Filename and function 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");
+}
+
+python$target:::function-entry
+{
+	self->file = basename(copyinstr(arg0));
+	self->name = copyinstr(arg1);
+}
+
+python$target:::function-return
+{
+	self->file = 0;
+	self->name = 0;
+}
+
+pid$target:libc:malloc:entry
+/self->file != NULL/
+{
+	@malloc_func_size[self->file, self->name] = sum(arg0);
+	@malloc_func_dist[self->file, self->name] = quantize(arg0);
+}
+
+pid$target:libc:malloc:entry
+/self->name == NULL/
+{
+	@malloc_lib_size[usym(ucaller)] = sum(arg0);
+	@malloc_lib_dist[usym(ucaller)] = quantize(arg0);
+}
+
+
+dtrace:::END
+{
+	printf("\nPython malloc byte distributions by engine caller,\n\n");
+	printa("   %A, total bytes = %@d %@d\n", @malloc_lib_size,
+	    @malloc_lib_dist);
+
+	printf("\nPython malloc byte distributions by Python file and ");
+	printf("function,\n\n");
+	printa("   %s, %s, bytes total = %@d %@d\n", @malloc_func_size,
+	    @malloc_func_dist);
+}
-- 
cgit v1.1