#!/usr/sbin/dtrace -Zs /* * py_mallocstk.d - Python libc malloc analysis with full stack traces. * Written for the Python DTrace provider. * * $Id: py_mallocstk.d,v 1.1.1.1 2015/09/30 22:01:06 christos Exp $ * * USAGE: py_mallocstk.d { -p PID | -c cmd } # hit Ctrl-C to end * * 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 /* tune as desired, */ #pragma D option jstackframes=64 #pragma D option jstackstrsize=1024 dtrace:::BEGIN { printf("Tracing... Hit Ctrl-C to end.\n"); } pid$target:libc:malloc:entry { @mallocs[jstack()] = quantize(arg0); } dtrace:::END { printf("\nPython malloc byte distributions by stack trace,\n\n"); printa(@mallocs); }