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authorgnn <gnn@FreeBSD.org>2012-05-12 20:38:18 +0000
committergnn <gnn@FreeBSD.org>2012-05-12 20:38:18 +0000
commit4297c1b2d07fec7f50b70e26e3adb4d062b19e15 (patch)
treeaec2772e8855e6dbaea6d8136ed0c47bcb825dee /Java/j_methodcalls.d
parent111c75a23278cd9317f0a13867c22ee0f6c95b26 (diff)
downloadFreeBSD-src-4297c1b2d07fec7f50b70e26e3adb4d062b19e15.zip
FreeBSD-src-4297c1b2d07fec7f50b70e26e3adb4d062b19e15.tar.gz
Add the remaining scripts from the DTraceToolkit, version 0.99, to the
vendor tree. http://www.brendangregg.com/dtrace.html#DTraceToolkit
Diffstat (limited to 'Java/j_methodcalls.d')
-rwxr-xr-xJava/j_methodcalls.d60
1 files changed, 60 insertions, 0 deletions
diff --git a/Java/j_methodcalls.d b/Java/j_methodcalls.d
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+++ b/Java/j_methodcalls.d
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+#!/usr/sbin/dtrace -Zs
+/*
+ * j_methodcalls.d - count Java method calls DTrace.
+ * Written for the Java hotspot DTrace provider.
+ *
+ * $Id: j_methodcalls.d 19 2007-09-12 07:47:59Z brendan $
+ *
+ * This traces activity from all Java processes on the system with hotspot
+ * provider support (1.6.0) and the flag "+ExtendedDTraceProbes". eg,
+ * java -XX:+ExtendedDTraceProbes classfile
+ *
+ * USAGE: j_methodcalls.d # hit Ctrl-C to end
+ *
+ * FIELDS:
+ * PID Process ID
+ * COUNT Number of calls during sample
+ * CLASS.METHOD Java class and method name
+ *
+ * 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");
+}
+
+hotspot*:::method-entry
+{
+ this->class = (char *)copyin(arg1, arg2 + 1);
+ this->class[arg2] = '\0';
+ this->method = (char *)copyin(arg3, arg4 + 1);
+ this->method[arg4] = '\0';
+ this->name = strjoin(strjoin(stringof(this->class), "."),
+ stringof(this->method));
+ @calls[pid, this->name] = count();
+}
+
+dtrace:::END
+{
+ printf(" %6s %8s %s\n", "PID", "COUNT", "CLASS.METHOD");
+ printa(" %6d %@8d %s\n", @calls);
+}
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