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Diffstat (limited to 'Proc/threaded.d')
-rwxr-xr-x | Proc/threaded.d | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/Proc/threaded.d b/Proc/threaded.d new file mode 100755 index 000000000000..7f5770b54825 --- /dev/null +++ b/Proc/threaded.d @@ -0,0 +1,66 @@ +#!/usr/sbin/dtrace -s +/* + * threaded.d - sample multi-threaded CPU usage. + * Written using DTrace (Solaris 10 3/05). + * + * This measures thread IDs as a process runs across multiple CPUs. + * It is a simple script that can help determine if a multi-threaded + * application is effectively using it's threads, or if the threads have + * serialised. See the example file in Docs/Examples/threaded_example.txt + * for a demonstration. + * + * $Id: threaded.d 3 2007-08-01 10:50:08Z brendan $ + * + * USAGE: threaded.d + * + * FIELDS: + * PID process ID + * CMD process name + * value thread ID + * count number of samples + * + * SEE ALSO: prstat -L + * + * COPYRIGHT: Copyright (c) 2005 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 + * + * Author: Brendan Gregg [Sydney, Australia] + * + * 25-Jul-2005 Brendan Gregg Created this. + * 25-Jul-2005 " " Last update. + */ + +#pragma D option quiet + +/* + * Sample at 100 Hertz + */ +profile:::profile-100 +/pid != 0/ +{ + @sample[pid, execname] = lquantize(tid, 0, 128, 1); +} + +/* + * Print output every 1 second + */ +profile:::tick-1sec +{ + printf("%Y,\n", walltimestamp); + printa("\n PID: %-8d CMD: %s\n%@d", @sample); + printf("\n"); + trunc(@sample); +} |