diff options
Diffstat (limited to 'cddl/contrib/dtracetoolkit/Java/j_thread.d')
-rwxr-xr-x | cddl/contrib/dtracetoolkit/Java/j_thread.d | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Java/j_thread.d b/cddl/contrib/dtracetoolkit/Java/j_thread.d new file mode 100755 index 0000000..08d2de8 --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Java/j_thread.d @@ -0,0 +1,64 @@ +#!/usr/sbin/dtrace -Zs +/* + * j_thread.d - snoop Java thread execution using DTrace. + Written for the Java hotspot DTrace provider. + * + * $Id: j_thread.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). + * + * USAGE: j_thread.d # hit Ctrl-C to end + * + * FIELDS: + * TIME Time string + * PID Process ID + * TID Thread ID + * THREAD Thread name + * + * LEGEND: + * => thread start + * <= thread end + * + * 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 +#pragma D option switchrate=10 + +dtrace:::BEGIN +{ + printf("%-20s %6s/%-5s -- %s\n", "TIME", "PID", "TID", "THREAD"); +} + +hotspot*:::thread-start +{ + this->thread = (char *)copyin(arg0, arg1 + 1); + this->thread[arg1] = '\0'; + printf("%-20Y %6d/%-5d => %s\n", walltimestamp, pid, tid, + stringof(this->thread)); +} + +hotspot*:::thread-stop +{ + this->thread = (char *)copyin(arg0, arg1 + 1); + this->thread[arg1] = '\0'; + printf("%-20Y %6d/%-5d <= %s\n", walltimestamp, pid, tid, + stringof(this->thread)); +} |