1 files changed, 38 insertions, 0 deletions
diff --git a/Kernel/putnexts.d b/Kernel/putnexts.d
new file mode 100755
index 000000000000..cb99a7213636
--- /dev/null
+++ b/Kernel/putnexts.d
@@ -0,0 +1,38 @@
+#!/usr/sbin/dtrace -s
+/*
+ * putnexts.d - stream putnext() tracing with stacks. Solaris, DTrace.
+ *
+ * This shows who is calling putnext() to who, by listing the destination
+ * queue and the calling stack, by frequency count. This is especially useful
+ * for understanding streams based frameworks, such as areas of the Solaris
+ * TCP/IP stack.
+ *
+ * $Id: putnexts.d 14 2007-09-11 08:03:35Z brendan $
+ *
+ * USAGE:	putnext.d
+ *
+ * BASED ON: /usr/demo/dtrace/putnext.d
+ *
+ * PORTIONS: 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
+ *
+ * 12-Jun-2005  Brendan Gregg   Created this.
+ */
+
+fbt::putnext:entry
+{
+	@[stringof(args[0]->q_qinfo->qi_minfo->mi_idname), stack(5)] = count();
+}