1N/A#!/usr/sbin/dtrace -s
1N/A/*
1N/A * priclass.d - priority distribution by scheduling class.
1N/A * Written using DTrace (Solaris 10 3/05)
1N/A *
1N/A * This is a simple DTrace script that samples at 1000 Hz the current
1N/A * thread's scheduling class and priority. A distribution plot is printed.
1N/A *
1N/A * With priorities, the higher the priority the better chance the thread
1N/A * has of being scheduled.
1N/A *
1N/A * This idea came from the script /usr/demo/dtrace/pri.d, which
1N/A * produces similar output for priority changes, not samples.
1N/A *
1N/A * $Id: priclass.d 3 2007-08-01 10:50:08Z brendan $
1N/A *
1N/A * USAGE: priclass.d # hit Ctrl-C to end sampling
1N/A *
1N/A * FIELDS:
1N/A * value process priority
1N/A * count number of samples of at least this priority
1N/A *
1N/A * Also printed is the scheduling class,
1N/A *
1N/A * TS time sharing
1N/A * IA interactive
1N/A * RT real time
1N/A * SYS system
1N/A * FSS fair share schedular
1N/A *
1N/A * BASED ON: /usr/demo/dtrace/pri.d
1N/A *
2N/A * SEE ALSO: DTrace Guide "profile Provider" chapter (docs.oracle.com)
1N/A * dispadmin(1M)
1N/A *
1N/A * PORTIONS: Copyright (c) 2006 Brendan Gregg.
1N/A *
1N/A * CDDL HEADER START
1N/A *
1N/A * The contents of this file are subject to the terms of the
1N/A * Common Development and Distribution License, Version 1.0 only
1N/A * (the "License"). You may not use this file except in compliance
1N/A * with the License.
1N/A *
1N/A * You can obtain a copy of the license at Docs/cddl1.txt
1N/A * or http://www.opensolaris.org/os/licensing.
1N/A * See the License for the specific language governing permissions
1N/A * and limitations under the License.
1N/A *
1N/A * CDDL HEADER END
1N/A *
1N/A * 12-Feb-2006 Brendan Gregg Created this.
1N/A * 22-Apr-2006 " " Last update.
1N/A */
1N/A
1N/A#pragma D option quiet
1N/A
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("Sampling... Hit Ctrl-C to end.\n");
1N/A}
1N/A
1N/Aprofile:::profile-1000hz
1N/A{
1N/A @count[stringof(curlwpsinfo->pr_clname)]
1N/A = lquantize(curlwpsinfo->pr_pri, 0, 170, 10);
1N/A}