1 #!/usr/sbin/dtrace -Zs 2 /* 3 * py_mallocstk.d - Python libc malloc analysis with full stack traces. 4 * Written for the Python DTrace provider. 5 * 6 * $Id: py_mallocstk.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7 * 8 * USAGE: py_mallocstk.d { -p PID | -c cmd } # hit Ctrl-C to end 9 * 10 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 11 * 12 * CDDL HEADER START 13 * 14 * The contents of this file are subject to the terms of the 15 * Common Development and Distribution License, Version 1.0 only 16 * (the "License"). You may not use this file except in compliance 17 * with the License. 18 * 19 * You can obtain a copy of the license at Docs/cddl1.txt 20 * or http://www.opensolaris.org/os/licensing. 21 * See the License for the specific language governing permissions 22 * and limitations under the License. 23 * 24 * CDDL HEADER END 25 * 26 * 09-Sep-2007 Brendan Gregg Created this. 27 */ 28 29 #pragma D option quiet 30 31 /* tune as desired, */ 32 #pragma D option jstackframes=64 33 #pragma D option jstackstrsize=1024 34 35 dtrace:::BEGIN 36 { 37 printf("Tracing... Hit Ctrl-C to end.\n"); 38 } 39 40 pid$target:libc:malloc:entry 41 { 42 @mallocs[jstack()] = quantize(arg0); 43 } 44 45 dtrace:::END 46 { 47 printf("\nPython malloc byte distributions by stack trace,\n\n"); 48 printa(@mallocs); 49 } 50