1 #!/usr/sbin/dtrace -Zs 2 /* 3 * py_calldist.d - measure Python elapsed times for functions. 4 * Written for the Python DTrace provider. 5 * 6 * $Id: py_calldist.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7 * 8 * This traces Python activity from all programs running on the system with 9 * Python provider support. 10 * 11 * USAGE: py_calldist.d # hit Ctrl-C to end 12 * 13 * This script prints distribution plots of elapsed time for Python 14 * operations. Use py_calltime.d for summary reports. 15 * 16 * FIELDS: 17 * 1 Filename of the Python program 18 * 2 Type of call (func) 19 * 3 Name of call 20 * 21 * Filename and function names are printed if available. 22 * 23 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 24 * 25 * CDDL HEADER START 26 * 27 * The contents of this file are subject to the terms of the 28 * Common Development and Distribution License, Version 1.0 only 29 * (the "License"). You may not use this file except in compliance 30 * with the License. 31 * 32 * You can obtain a copy of the license at Docs/cddl1.txt 33 * or http://www.opensolaris.org/os/licensing. 34 * See the License for the specific language governing permissions 35 * and limitations under the License. 36 * 37 * CDDL HEADER END 38 * 39 * 09-Sep-2007 Brendan Gregg Created this. 40 */ 41 42 #pragma D option quiet 43 44 dtrace:::BEGIN 45 { 46 printf("Tracing... Hit Ctrl-C to end.\n"); 47 } 48 49 python*:::function-entry 50 { 51 self->depth++; 52 self->exclude[self->depth] = 0; 53 self->function[self->depth] = timestamp; 54 } 55 56 python*:::function-return 57 /self->function[self->depth]/ 58 { 59 this->elapsed_incl = timestamp - self->function[self->depth]; 60 this->elapsed_excl = this->elapsed_incl - self->exclude[self->depth]; 61 self->function[self->depth] = 0; 62 self->exclude[self->depth] = 0; 63 this->file = basename(copyinstr(arg0)); 64 this->name = copyinstr(arg1); 65 66 @types_incl[this->file, "func", this->name] = 67 quantize(this->elapsed_incl / 1000); 68 @types_excl[this->file, "func", this->name] = 69 quantize(this->elapsed_excl / 1000); 70 71 self->depth--; 72 self->exclude[self->depth] += this->elapsed_incl; 73 } 74 75 dtrace:::END 76 { 77 printf("\nExclusive function elapsed times (us),\n"); 78 printa(" %s, %s, %s %@d\n", @types_excl); 79 80 printf("\nInclusive function elapsed times (us),\n"); 81 printa(" %s, %s, %s %@d\n", @types_incl); 82 } 83