81 lines
2.0 KiB
D
Executable File
81 lines
2.0 KiB
D
Executable File
#!/usr/sbin/dtrace -Zs
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/*
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* rb_malloc.d - Ruby operations and libc malloc statistics.
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* Written for the Ruby DTrace provider.
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*
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* $Id: rb_malloc.d 20 2007-09-12 09:28:22Z brendan $
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*
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* WARNING: This script is not 100% accurate; This prints libc malloc() byte
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* distributions by "recent" Ruby operation, which we hope will be usually
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* relevant. This is an experimental script that may be improved over time.
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*
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* USAGE: rb_malloc.d { -p PID | -c cmd } # hit Ctrl-C to end
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*
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* FIELDS:
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* 1 Filename of the Ruby program
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* 2 Type of operation (method/objnew/startup)
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* 3 Name of operation
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*
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* Filename and method names are printed if available.
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*
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* COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at Docs/cddl1.txt
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* CDDL HEADER END
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*
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* 09-Sep-2007 Brendan Gregg Created this.
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*/
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#pragma D option quiet
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self string filename;
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dtrace:::BEGIN
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{
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printf("Tracing... Hit Ctrl-C to end.\n");
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}
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ruby$target:::function-entry
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{
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self->file = basename(copyinstr(arg2));
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self->type = "method";
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self->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
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}
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ruby$target:::object-create-start
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{
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self->file = basename(copyinstr(arg1));
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self->type = "objnew";
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self->name = copyinstr(arg0);
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}
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pid$target:libc:malloc:entry
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/self->file != NULL/
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{
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@mallocs[self->file, self->type, self->name] = quantize(arg0);
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}
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pid$target:libc:malloc:entry
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/self->file == NULL/
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{
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@mallocs["ruby", "startup", "-"] = quantize(arg0);
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}
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dtrace:::END
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{
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printf("Ruby malloc byte distributions by recent Ruby operation,\n");
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printa(" %s, %s, %s %@d\n", @mallocs);
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}
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