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Diffstat (limited to 'cddl/contrib/dtracetoolkit/Java/j_who.d')
-rwxr-xr-x | cddl/contrib/dtracetoolkit/Java/j_who.d | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Java/j_who.d b/cddl/contrib/dtracetoolkit/Java/j_who.d new file mode 100755 index 0000000..8785cca --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Java/j_who.d @@ -0,0 +1,58 @@ +#!/usr/sbin/dtrace -Zs +/* + * j_who.d - trace Java calls by process using DTrace. + * Written for the Java hotspot DTrace provider. + * + * $Id: j_who.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_who.d # hit Ctrl-C to end + * + * FIELDS: + * PID Process ID of Java + * UID User ID of the owner + * CALLS Number of calls made (a measure of activity) + * ARGS Process name and arguments + * + * The argument list is truncated at 55 characters (up to 80 is easily + * available). To easily read the full argument list, use other system tools; + * on Solaris use "pargs PID". + * + * 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*:::Call*-entry +{ + @calls[pid, uid, curpsinfo->pr_psargs] = count(); +} + +dtrace:::END +{ + printf(" %6s %6s %6s %-55s\n", "PID", "UID", "CALLS", "ARGS"); + printa(" %6d %6d %@6d %-55.55s\n", @calls); +} |