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<title>[14992] CalendarServer/trunk/contrib/tools/flow.d</title>
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<dt>Revision</dt> <dd><a href="http://trac.calendarserver.org//changeset/14992">14992</a></dd>
<dt>Author</dt> <dd>cdaboo@apple.com</dd>
<dt>Date</dt> <dd>2015-07-24 10:15:32 -0700 (Fri, 24 Jul 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Add dtrace function call tracer script.</pre>
<h3>Added Paths</h3>
<ul>
<li><a href="#CalendarServertrunkcontribtoolsflowd">CalendarServer/trunk/contrib/tools/flow.d</a></li>
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<h3>Diff</h3>
<a id="CalendarServertrunkcontribtoolsflowd"></a>
<div class="addfile"><h4>Added: CalendarServer/trunk/contrib/tools/flow.d (0 => 14992)</h4>
<pre class="diff"><span>
<span class="info">--- CalendarServer/trunk/contrib/tools/flow.d (rev 0)
+++ CalendarServer/trunk/contrib/tools/flow.d 2015-07-24 17:15:32 UTC (rev 14992)
</span><span class="lines">@@ -0,0 +1,74 @@
</span><ins>+#!/usr/sbin/dtrace -Zs
+/*
+ * py_flow.d - snoop Python execution showing function flow.
+ * Written for the Python DTrace provider.
+ *
+ * $Id: py_flow.d 51 2007-09-24 00:55:23Z brendan $
+ *
+ * This traces Python activity from all Python programs on the system
+ * running with Python provider support.
+ *
+ * USAGE: flow.d <PID> # hit Ctrl-C to end
+ *
+ * This watches Python function entries and returns, and indents child
+ * function calls.
+ *
+ * FIELDS:
+ * C CPU-id
+ * TIME(us) Time since boot, us
+ * FILE Filename that this function belongs to
+ * FUNC Function name
+ *
+ * LEGEND:
+ * -> function entry
+ * <- function return
+ *
+ * WARNING: Watch the first column carefully, it prints the CPU-id. If it
+ * changes, then it is very likely that the output has been shuffled.
+ *
+ * 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.
+ *
+ * This is a variation of py_flow.d that takes a pid.
+ */
+
+#pragma D option quiet
+#pragma D option switchrate=10
+
+self int depth;
+
+dtrace:::BEGIN
+{
+ printf("%3s %-16s %-16s -- %s\n", "C", "TIME(us)", "FILE", "FUNC");
+}
+
+python*:::function-entry
+/pid == $1/
+{
+ printf("%3d %-16d %-16s %*s-> %s\n", cpu, timestamp / 1000,
+ basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
+ self->depth++;
+}
+
+python*:::function-return
+/pid == $1/
+{
+ self->depth -= self->depth > 0 ? 1 : 0;
+ printf("%3d %-16d %-16s %*s<- %s\n", cpu, timestamp / 1000,
+ basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
+}
</ins><span class="cx">\ No newline at end of file
</span><span class="cx">Property changes on: CalendarServer/trunk/contrib/tools/flow.d
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnexecutable"></a>
<div class="addfile"><h4>Added: svn:executable</h4></div>
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