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author | gnn <gnn@FreeBSD.org> | 2012-05-12 21:25:48 +0000 |
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committer | gnn <gnn@FreeBSD.org> | 2012-05-12 21:25:48 +0000 |
commit | 2325662608ef525d2b16f218c7f92205ae571d5c (patch) | |
tree | 349c87edcb2d1f2a1040b9630b1fddf85a3484a0 /cddl/contrib/dtracetoolkit/JavaScript/js_objcpu.d | |
parent | 0778d9c814eb131045e6c28e219184601f3c9e19 (diff) | |
parent | 4297c1b2d07fec7f50b70e26e3adb4d062b19e15 (diff) | |
download | FreeBSD-src-2325662608ef525d2b16f218c7f92205ae571d5c.zip FreeBSD-src-2325662608ef525d2b16f218c7f92205ae571d5c.tar.gz |
Import dtracetoolkit into cddl/contrib
Diffstat (limited to 'cddl/contrib/dtracetoolkit/JavaScript/js_objcpu.d')
-rwxr-xr-x | cddl/contrib/dtracetoolkit/JavaScript/js_objcpu.d | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/JavaScript/js_objcpu.d b/cddl/contrib/dtracetoolkit/JavaScript/js_objcpu.d new file mode 100755 index 0000000..6611f59 --- /dev/null +++ b/cddl/contrib/dtracetoolkit/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 63 2007-10-04 04:34:38Z brendan $ + * + * 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); +} |