X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/a3d08fcd5120d2aa8303b6349ca8b14e3f284af3..91447636331957f3d9b5ca5b508f07c526b0074d:/osfmk/kern/mach_factor.c

diff --git a/osfmk/kern/mach_factor.c b/osfmk/kern/mach_factor.c
deleted file mode 100644
index 9a0cdedca..000000000
--- a/osfmk/kern/mach_factor.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * @OSF_COPYRIGHT@
- */
-/* 
- * Mach Operating System
- * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
- * Carnegie Mellon requests users of this software to return to
- * 
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- * 
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-/*
- */
-/*
- *	File:	kern/mach_factor.c
- *	Author:	Avadis Tevanian, Jr.
- *	Date:	1986
- *
- *	Compute the Mach Factor.
- */
-
-#include <cpus.h>
-
-#include <mach/machine.h>
-#include <mach/processor_info.h>
-#include <kern/sched.h>
-#include <kern/assert.h>
-#include <kern/processor.h>
-#include <kern/thread.h>
-#if	MACH_KERNEL
-#include <mach/kern_return.h>
-#include <mach/port.h>
-#endif	/* MACH_KERNEL */
-
-uint32_t	avenrun[3] = {0, 0, 0};
-uint32_t	mach_factor[3] = {0, 0, 0};
-
-/*
- * Values are scaled by LOAD_SCALE, defined in processor_info.h
- */
-#define base(n)		((n) << SCHED_TICK_SHIFT)
-#define frac(n)		(((base(n) - 1) * LOAD_SCALE) /	base(n))
-
-static uint32_t		fract[3] = {
-	frac(5),		/* 5 second average */
-	frac(30),		/* 30 second average */
-	frac(60),		/* 1 minute average */
-};
-
-#undef base
-#undef frac
-
-void
-compute_mach_factor(void)
-{
-	register processor_set_t	pset = &default_pset;
-	register int				ncpus;
-	register int				nthreads, nshared;
-	register uint32_t			factor_now = 0;
-	register uint32_t			average_now = 0;
-	register uint32_t			load_now = 0;
-
-	if ((ncpus = pset->processor_count) > 0) {
-		/*
-		 *	Retrieve thread counts.
-		 */
-		nthreads = pset->run_count;
-		nshared = pset->share_count;
-
-		/*
-		 *	Don't include the current thread.
-		 */
-		nthreads -= 1;
-
-		/*
-		 *	Load average and mach factor calculations for
-		 *	those which ask about these things.
-		 */
-		average_now = nthreads * LOAD_SCALE;
-
-		if (nthreads > ncpus)
-			factor_now = (ncpus * LOAD_SCALE) / (nthreads + 1);
-		else
-			factor_now = (ncpus - nthreads) * LOAD_SCALE;
-
-		pset->mach_factor =	((pset->mach_factor << 2) + factor_now) / 5;
-		pset->load_average = ((pset->load_average << 2) + average_now) / 5;
-
-		/*
-		 *	Compute the load factor used by the timesharing
-		 *	algorithm.
-		 */
-		if (nshared > nthreads)
-			nshared = nthreads;
-
-		if (nshared > ncpus)
-			load_now = (nshared << SCHED_SHIFT) / ncpus;
-
-		pset->sched_load = (pset->sched_load + load_now) >> 1;
-	}
-	else {
-		pset->mach_factor = pset->load_average = 0;
-		pset->sched_load = 0;
-	}
-
-	/*
-	 * Compute old-style Mach load averages.
-	 */
-	{
-		register int		i;
-
-		for (i = 0; i < 3; i++) {
-			mach_factor[i] = ((mach_factor[i] * fract[i]) +
-						(factor_now * (LOAD_SCALE - fract[i]))) / LOAD_SCALE;
-
-			avenrun[i] = ((avenrun[i] * fract[i]) +
-						(average_now * (LOAD_SCALE - fract[i]))) / LOAD_SCALE;
-		}
-	}
-
-	/*
-	 * Call out to BSD for averunnable.
-	 */
-	{
-#define AVGTICK_PERIOD		(5 << SCHED_TICK_SHIFT)
-		static uint32_t		avgtick_count;
-		extern void			compute_averunnable(
-								int				nrun);
-
-		if (++avgtick_count == 1)
-			compute_averunnable(nthreads);
-		else
-		if (avgtick_count >= AVGTICK_PERIOD)
-			avgtick_count = 0;
-	}
-}