vendor/dtracetoolkit/dtracetoolkit-20120512vendor/dtracetoolkit

1 files changed, 66 insertions, 0 deletions

diff --git a/Proc/threaded.d b/Proc/threaded.d
new file mode 100755
index 000000000000..7f5770b54825
--- /dev/null
+++ b/Proc/threaded.d
@@ -0,0 +1,66 @@
+#!/usr/sbin/dtrace -s
+/*
+ * threaded.d - sample multi-threaded CPU usage.
+ *              Written using DTrace (Solaris 10 3/05).
+ *
+ * This measures thread IDs as a process runs across multiple CPUs.
+ * It is a simple script that can help determine if a multi-threaded
+ * application is effectively using it's threads, or if the threads have
+ * serialised. See the example file in Docs/Examples/threaded_example.txt
+ * for a demonstration.
+ *
+ * $Id: threaded.d 3 2007-08-01 10:50:08Z brendan $
+ *
+ * USAGE:	threaded.d
+ *
+ * FIELDS:
+ *		PID		process ID
+ *		CMD		process name
+ *		value		thread ID
+ *		count		number of samples
+ *
+ * SEE ALSO:	prstat -L
+ *
+ * COPYRIGHT: Copyright (c) 2005 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
+ *
+ * Author: Brendan Gregg  [Sydney, Australia]
+ *
+ * 25-Jul-2005	Brendan Gregg	Created this.
+ * 25-Jul-2005	   "      "	Last update.
+ */
+
+#pragma D option quiet
+
+/*
+ * Sample at 100 Hertz
+ */
+profile:::profile-100
+/pid != 0/
+{
+	@sample[pid, execname] = lquantize(tid, 0, 128, 1);
+}
+
+/*
+ * Print output every 1 second
+ */
+profile:::tick-1sec
+{
+	printf("%Y,\n", walltimestamp);
+	printa("\n     PID: %-8d CMD: %s\n%@d", @sample);
+	printf("\n");
+	trunc(@sample);
+}