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authorScott Lystig Fritchie <[email protected]>2011-11-17 00:44:30 -0600
committerPatrik Nyblom <[email protected]>2012-03-22 18:16:13 +0100
commit0331c29e0e494d4c1e4fdd05e48a3f88a8caea0b (patch)
tree4c08b3be38f82fa19c88faf68e65e5aae591cd4f /lib/dtrace/examples/messages.systemtap
parent0721ac40f91295bb3995f86966e5dd031028ca85 (diff)
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Add DTrace support for OS X, Solaris, and Linux (via SystemTap), 2/4
Add D scripts in the `lib/dtrace/examples` directory. Add SystemTap README and sample scripts, contributed by Andreas Schultz <[email protected]>.
Diffstat (limited to 'lib/dtrace/examples/messages.systemtap')
-rw-r--r--lib/dtrace/examples/messages.systemtap87
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diff --git a/lib/dtrace/examples/messages.systemtap b/lib/dtrace/examples/messages.systemtap
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+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Scott Lystig Fritchie and Andreas Schultz, 2011. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+/*
+ * Note: This file assumes that you're using the non-SMP-enabled Erlang
+ * virtual machine, "beam". The SMP-enabled VM is called "beam.smp".
+ * Note that other variations of the virtual machine also have
+ * different names, e.g. the debug build of the SMP-enabled VM
+ * is "beam.debug.smp".
+ *
+ * To use a different virtual machine, replace each instance of
+ * "beam" with "beam.smp" or the VM name appropriate to your
+ * environment.
+ */
+
+probe begin
+{
+ printf("\n");
+ printf("NOTE: message-queue message size 4294967295 means an external\n");
+ printf(" message that the code isn't smart enough to determine\n");
+ printf(" the actual size.\n");
+ printf("\n");
+}
+
+probe process("beam").mark("message-send")
+{
+ if ($arg4 == 0 && $arg5 == 0 && $arg6 == 0) {
+ printf("send: %s -> %s: %d words\n",
+ user_string($arg1), user_string($arg2), $arg3);
+ } else {
+ printf("send: %s label %d token {%d,%d} -> %s: %d words\n",
+ user_string($arg1),
+ $arg4, $arg5, $arg6,
+ user_string($arg2), $arg3);
+ }
+}
+
+probe process("beam").mark("message-send-remote")
+{
+ if ($arg5 == 0 && $arg6 == 0 && $arg7 == 0) {
+ printf("send : %s -> %s %s: %d words\n",
+ user_string($arg1), user_string($arg2), user_string($arg3), $arg4);
+ } else {
+ printf("send : %s label %d token {%d,%d} -> %s %s: %d words\n",
+ user_string($arg1),
+ $arg5, $arg6, $arg7,
+ user_string($arg2), user_string($arg3), $arg4);
+ }
+}
+
+probe process("beam").mark("message-queued")
+{
+ if ($arg4 == 0 && $arg5 == 0 && $arg6 == 0) {
+ printf("queued: %s: %d words, queue len %d\n", user_string($arg1), $arg2, $arg3);
+ } else {
+ printf("queued: %s label %d token {%d,%d}: %d words, queue len %d\n",
+ user_string($arg1), $arg4, $arg5, $arg6,
+ $arg2, $arg3);
+ }
+}
+
+probe process("beam").mark("message-receive")
+{
+ if ($arg4 == 0 && $arg5 == 0 && $arg6 == 0) {
+ printf("receive: %s: %d words, queue len %d\n",
+ user_string($arg1), $arg2, $arg3);
+ } else {
+ printf("receive: %s label %d token {%d,%d}: %d words, queue len %d\n",
+ user_string($arg1), $arg4, $arg5, $arg6,
+ $arg2, $arg3);
+ }
+}