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authorchristos <christos@NetBSD.org>2015-09-30 22:01:06 +0000
committerchristos <christos@NetBSD.org>2015-09-30 22:01:06 +0000
commite137d3e0cc26fa9bd0abf9c93f273405d3262454 (patch)
tree4ee836ef475344e4753a6ed6556d65a847f12a1e /external/cddl/dtracetoolkit/dist/JavaScript/js_objcpu.d
parentfb62d9db1152e5cb288c8d7b66f2d506bc3b5d10 (diff)
Import the dtrace toolkit from FreeBSD; simple scripts such as dtruss work
unmodified. For others we'll need to add the missing probes and adjust. This is not attached to the build.
Diffstat (limited to 'external/cddl/dtracetoolkit/dist/JavaScript/js_objcpu.d')
-rwxr-xr-xexternal/cddl/dtracetoolkit/dist/JavaScript/js_objcpu.d61
1 files changed, 61 insertions, 0 deletions
diff --git a/external/cddl/dtracetoolkit/dist/JavaScript/js_objcpu.d b/external/cddl/dtracetoolkit/dist/JavaScript/js_objcpu.d
new file mode 100755
index 00000000000..fbed6cc66a4
--- /dev/null
+++ b/external/cddl/dtracetoolkit/dist/JavaScript/js_objcpu.d
@@ -0,0 +1,61 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * js_objcpu.d - measure JavaScript object creation on-CPU time using DTrace.
+ * Written for the JavaScript DTrace provider.
+ *
+ * $Id: js_objcpu.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $
+ *
+ * This traces JavaScript activity from all browsers running on the system
+ * with JavaScript provider support.
+ *
+ * USAGE: js_objcpu.d # hit Ctrl-C to end
+ *
+ * Class names are printed if available.
+ *
+ * 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.
+ */
+
+#pragma D option quiet
+
+dtrace:::BEGIN
+{
+ printf("Tracing... Hit Ctrl-C to end.\n");
+}
+
+javascript*:::object-create-start
+{
+ self->vstart = vtimestamp;
+}
+
+javascript*:::object-create-done
+/self->vstart/
+{
+ this->oncpu = vtimestamp - self->vstart;
+ @total = sum(this->oncpu);
+ @dist[copyinstr(arg1)] = quantize(this->oncpu / 1000);
+ self->vstart = 0;
+}
+
+dtrace:::END
+{
+ normalize(@total, 1000000);
+ printa("Total object creation on-CPU time (ms): %@d\n\n", @total);
+ printf("Object creation on-CPU time distributions (us),\n");
+ printa(@dist);
+}