[apple/system_cmds.git] / vm_stat.tproj / vm_stat.c

/*
 * Copyright (c) 1999-2009 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (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.
 * 
 * The 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@
 */
/*
 *	File:	vm_stat.c
 *	Author:	Avadis Tevanian, Jr.
 *
 *	Copyright (C) 1986, Avadis Tevanian, Jr.
 *
 *
 *	Display Mach VM statistics.
 *
 ************************************************************************
 * HISTORY
 *  6-Jun-86  Avadis Tevanian, Jr. (avie) at Carnegie-Mellon University
 *	Use official Mach interface.
 *
 *  25-mar-99	A.Ramesh at Apple
 *		Ported to MacOS X
 *  
 *  22-Jan-09	R.Branche at Apple
 *  		Changed some fields to 64-bit to alleviate overflows
 ************************************************************************
 */

#include <err.h>
#include <stddef.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>

#include <mach/mach.h>
#include <mach/vm_page_size.h>

vm_statistics64_data_t	vm_stat, last;
char	*pgmname;
mach_port_t myHost;

void usage(void);
void snapshot(void);
void sspstat(char *str, uint64_t n);
void banner(void);
void print_stats(void);
void get_stats(vm_statistics64_t stat);

void pstat(uint64_t n, int width);

int
main(int argc, char *argv[])
{

	double delay = 0.0;
	int count = 0;

	pgmname = argv[0];

	setlinebuf (stdout);

	int c;
	while ((c = getopt (argc, argv, "c:")) != -1) {
		switch (c) {
			case 'c':
				count = (int)strtol(optarg, NULL, 10);
				if (count < 1) {
					warnx("count must be positive");
					usage();
				}
				break;
			default:
				usage();
				break;
		}
	}

	argc -= optind; argv += optind;

	if (argc == 1) {
		delay = strtod(argv[0], NULL);
		if (delay < 0.0)
			usage();
	} else if (argc > 1) {
		usage();
	}

	myHost = mach_host_self();

	if (delay == 0.0) {
		snapshot();
	} else {
		print_stats();
		for (int i = 1; i < count || count == 0; i++ ){
			usleep((int)(delay * USEC_PER_SEC));
			print_stats();
		}
	}
	exit(EXIT_SUCCESS);
}

void
usage(void)
{
	fprintf(stderr, "usage: %s [[-c count] interval]\n", pgmname);
	exit(EXIT_FAILURE);
}

void
snapshot(void)
{

	get_stats(&vm_stat);
	printf("Mach Virtual Memory Statistics: (page size of %llu bytes)\n", (mach_vm_size_t)vm_kernel_page_size);

	sspstat("Pages free:", (uint64_t) (vm_stat.free_count - vm_stat.speculative_count));
	sspstat("Pages active:", (uint64_t) (vm_stat.active_count));
	sspstat("Pages inactive:", (uint64_t) (vm_stat.inactive_count));
	sspstat("Pages speculative:", (uint64_t) (vm_stat.speculative_count));
	sspstat("Pages throttled:", (uint64_t) (vm_stat.throttled_count));
	sspstat("Pages wired down:", (uint64_t) (vm_stat.wire_count));
	sspstat("Pages purgeable:", (uint64_t) (vm_stat.purgeable_count));
	sspstat("\"Translation faults\":", (uint64_t) (vm_stat.faults));
	sspstat("Pages copy-on-write:", (uint64_t) (vm_stat.cow_faults));
	sspstat("Pages zero filled:", (uint64_t) (vm_stat.zero_fill_count));
	sspstat("Pages reactivated:", (uint64_t) (vm_stat.reactivations));
	sspstat("Pages purged:", (uint64_t) (vm_stat.purges));
	sspstat("File-backed pages:", (uint64_t) (vm_stat.external_page_count));
	sspstat("Anonymous pages:", (uint64_t) (vm_stat.internal_page_count));
	sspstat("Pages stored in compressor:", (uint64_t) (vm_stat.total_uncompressed_pages_in_compressor));
	sspstat("Pages occupied by compressor:", (uint64_t) (vm_stat.compressor_page_count));
	sspstat("Decompressions:", (uint64_t) (vm_stat.decompressions));
	sspstat("Compressions:", (uint64_t) (vm_stat.compressions));
	sspstat("Pageins:", (uint64_t) (vm_stat.pageins));
	sspstat("Pageouts:", (uint64_t) (vm_stat.pageouts));
	sspstat("Swapins:", (uint64_t) (vm_stat.swapins));
	sspstat("Swapouts:", (uint64_t) (vm_stat.swapouts));
}

void
sspstat(char *str, uint64_t n)
{
	printf("%-30s %16llu.\n", str, n);
}

void
banner(void)
{
	get_stats(&vm_stat);
	printf("Mach Virtual Memory Statistics: ");
	printf("(page size of %llu bytes)\n", (mach_vm_size_t)vm_kernel_page_size);
	printf("%8s %8s %8s %8s %8s %8s %8s %8s %8s %8s %8s %8s %11s %9s %8s %8s %8s %8s %8s %8s %8s %8s\n",
	       "free",
	       "active",
	       "specul",
	       "inactive",
	       "throttle",
	       "wired",
	       "prgable",
	       "faults",
	       "copy",
	       "0fill",
	       "reactive",
	       "purged",
	       "file-backed",
	       "anonymous",
	       "cmprssed",
	       "cmprssor",
	       "dcomprs",
	       "comprs",
	       "pageins",
	       "pageout",
	       "swapins",
	       "swapouts");
	bzero(&last, sizeof(last));
}

void
print_stats(void)
{
	static int count = 0;

	if (count++ == 0)
		banner();

	if (count > 20)
		count = 0;

	get_stats(&vm_stat);
	pstat((uint64_t) (vm_stat.free_count - vm_stat.speculative_count), 8);
	pstat((uint64_t) (vm_stat.active_count), 8);
	pstat((uint64_t) (vm_stat.speculative_count), 8);
	pstat((uint64_t) (vm_stat.inactive_count), 8);
	pstat((uint64_t) (vm_stat.throttled_count), 8);
	pstat((uint64_t) (vm_stat.wire_count), 8);
	pstat((uint64_t) (vm_stat.purgeable_count), 8);
	pstat((uint64_t) (vm_stat.faults - last.faults), 8);
	pstat((uint64_t) (vm_stat.cow_faults - last.cow_faults), 8);
	pstat((uint64_t) (vm_stat.zero_fill_count - last.zero_fill_count), 8);
	pstat((uint64_t) (vm_stat.reactivations - last.reactivations), 8);
	pstat((uint64_t) (vm_stat.purges - last.purges), 8);
	pstat((uint64_t) (vm_stat.external_page_count), 11);
	pstat((uint64_t) (vm_stat.internal_page_count), 9);
	pstat((uint64_t) (vm_stat.total_uncompressed_pages_in_compressor), 8);
	pstat((uint64_t) (vm_stat.compressor_page_count), 8);
	pstat((uint64_t) (vm_stat.decompressions - last.decompressions), 8);
	pstat((uint64_t) (vm_stat.compressions - last.compressions), 8);
	pstat((uint64_t) (vm_stat.pageins - last.pageins), 8);
	pstat((uint64_t) (vm_stat.pageouts - last.pageouts), 8);
	pstat((uint64_t) (vm_stat.swapins - last.swapins), 8);
	pstat((uint64_t) (vm_stat.swapouts - last.swapouts), 8);
	putchar('\n');
	last = vm_stat;
}

void
pstat(uint64_t n, int width)
{
	char buf[80];
	if (width >= sizeof(buf)) {
		width = sizeof(buf) -1;
	}

	/* Now that we have the speculative field, there is really not enough
	 space, but we were actually overflowing three or four fields before
	 anyway.  So any field that overflows we drop some insignifigant
	 digets and slap on the appropriate suffix
	*/
	int w = snprintf(buf, sizeof(buf), "%*llu", width, n);
	if (w > width) {
		w = snprintf(buf, sizeof(buf), "%*lluK", width -1, n / 1000);
		if (w > width) {
			w = snprintf(buf, sizeof(buf), "%*lluM", width -1, n / 1000000);
			if (w > width) {
				w = snprintf(buf, sizeof(buf), "%*lluG", width -1, n / 1000000000);
			}
		}
	}
	fputs(buf, stdout);
	putchar(' ');
}

void
get_stats(vm_statistics64_t stat)
{
	unsigned int count = HOST_VM_INFO64_COUNT;
	kern_return_t ret;
	if ((ret = host_statistics64(myHost, HOST_VM_INFO64, (host_info64_t)stat, &count) != KERN_SUCCESS)) {
		fprintf(stderr, "%s: failed to get statistics. error %d\n", pgmname, ret);
		exit(EXIT_FAILURE);
	}
}
Commit	Line	Data
1815bff5	1	/*
ef8ad44b	2	* Copyright (c) 1999-2009 Apple Computer, Inc. All rights reserved.
1815bff5 A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
2fc1e207 A	6	* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
1815bff5 A	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2fc1e207 A	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
1815bff5 A	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/*
	25	* File: vm_stat.c
	26	* Author: Avadis Tevanian, Jr.
	27	*
	28	* Copyright (C) 1986, Avadis Tevanian, Jr.
	29	*
	30	*
	31	* Display Mach VM statistics.
	32	*
	33	************************************************************************
	34	* HISTORY
	35	* 6-Jun-86 Avadis Tevanian, Jr. (avie) at Carnegie-Mellon University
	36	* Use official Mach interface.
	37	*
	38	* 25-mar-99 A.Ramesh at Apple
	39	* Ported to MacOS X
ef8ad44b A	40	*
	41	* 22-Jan-09 R.Branche at Apple
	42	* Changed some fields to 64-bit to alleviate overflows
1815bff5 A	43	************************************************************************
	44	*/
	45
fc6d9e4b	46	#include <err.h>
83f6dbe8 A	47	#include <stddef.h>
83f6dbe8 A	48	#include <stdlib.h>
1815bff5 A	49	#include <unistd.h>
	50	#include <stdio.h>
	51
	52	#include <mach/mach.h>
1a7e3f61	53	#include <mach/vm_page_size.h>
1815bff5	54
ef8ad44b	55	vm_statistics64_data_t vm_stat, last;
1815bff5 A	56	char *pgmname;
1815bff5 A	57	mach_port_t myHost;
1815bff5	58
83f6dbe8	59	void usage(void);
83f6dbe8	60	void snapshot(void);
ef8ad44b A	61	void sspstat(char *str, uint64_t n);
ef8ad44b A	62	void banner(void);
83f6dbe8	63	void print_stats(void);
ef8ad44b A	64	void get_stats(vm_statistics64_t stat);
	65
	66	void pstat(uint64_t n, int width);
1815bff5 A	67
1815bff5 A	68	int
83f6dbe8	69	main(int argc, char *argv[])
1815bff5 A	70	{
1815bff5 A	71
fc6d9e4b A	72	double delay = 0.0;
fc6d9e4b A	73	int count = 0;
1815bff5	74
fc6d9e4b	75	pgmname = argv[0];
1815bff5 A	76
	77	setlinebuf (stdout);
	78
fc6d9e4b A	79	int c;
	80	while ((c = getopt (argc, argv, "c:")) != -1) {
	81	switch (c) {
	82	case 'c':
	83	count = (int)strtol(optarg, NULL, 10);
	84	if (count < 1) {
	85	warnx("count must be positive");
	86	usage();
	87	}
	88	break;
	89	default:
	90	usage();
	91	break;
	92	}
	93	}
	94
	95	argc -= optind; argv += optind;
	96
	97	if (argc == 1) {
	98	delay = strtod(argv[0], NULL);
	99	if (delay < 0.0)
1815bff5	100	usage();
fc6d9e4b A	101	} else if (argc > 1) {
fc6d9e4b A	102	usage();
1815bff5 A	103	}
	104
	105	myHost = mach_host_self();
	106
fc6d9e4b	107	if (delay == 0.0) {
1815bff5	108	snapshot();
fc6d9e4b A	109	} else {
	110	print_stats();
	111	for (int i = 1; i < count \|\| count == 0; i++ ){
	112	usleep((int)(delay * USEC_PER_SEC));
1815bff5	113	print_stats();
1815bff5 A	114	}
1815bff5 A	115	}
83f6dbe8	116	exit(EXIT_SUCCESS);
1815bff5 A	117	}
	118
	119	void
83f6dbe8	120	usage(void)
1815bff5	121	{
fc6d9e4b	122	fprintf(stderr, "usage: %s [[-c count] interval]\n", pgmname);
83f6dbe8	123	exit(EXIT_FAILURE);
1815bff5 A	124	}
1815bff5 A	125
ef8ad44b A	126	void
	127	snapshot(void)
	128	{
	129
	130	get_stats(&vm_stat);
1a7e3f61	131	printf("Mach Virtual Memory Statistics: (page size of %llu bytes)\n", (mach_vm_size_t)vm_kernel_page_size);
ef8ad44b A	132
	133	sspstat("Pages free:", (uint64_t) (vm_stat.free_count - vm_stat.speculative_count));
	134	sspstat("Pages active:", (uint64_t) (vm_stat.active_count));
	135	sspstat("Pages inactive:", (uint64_t) (vm_stat.inactive_count));
	136	sspstat("Pages speculative:", (uint64_t) (vm_stat.speculative_count));
fc6d9e4b	137	sspstat("Pages throttled:", (uint64_t) (vm_stat.throttled_count));
ef8ad44b	138	sspstat("Pages wired down:", (uint64_t) (vm_stat.wire_count));
fc6d9e4b	139	sspstat("Pages purgeable:", (uint64_t) (vm_stat.purgeable_count));
ef8ad44b A	140	sspstat("\"Translation faults\":", (uint64_t) (vm_stat.faults));
	141	sspstat("Pages copy-on-write:", (uint64_t) (vm_stat.cow_faults));
	142	sspstat("Pages zero filled:", (uint64_t) (vm_stat.zero_fill_count));
	143	sspstat("Pages reactivated:", (uint64_t) (vm_stat.reactivations));
fc6d9e4b A	144	sspstat("Pages purged:", (uint64_t) (vm_stat.purges));
	145	sspstat("File-backed pages:", (uint64_t) (vm_stat.external_page_count));
	146	sspstat("Anonymous pages:", (uint64_t) (vm_stat.internal_page_count));
	147	sspstat("Pages stored in compressor:", (uint64_t) (vm_stat.total_uncompressed_pages_in_compressor));
	148	sspstat("Pages occupied by compressor:", (uint64_t) (vm_stat.compressor_page_count));
	149	sspstat("Decompressions:", (uint64_t) (vm_stat.decompressions));
	150	sspstat("Compressions:", (uint64_t) (vm_stat.compressions));
ef8ad44b A	151	sspstat("Pageins:", (uint64_t) (vm_stat.pageins));
ef8ad44b A	152	sspstat("Pageouts:", (uint64_t) (vm_stat.pageouts));
fc6d9e4b A	153	sspstat("Swapins:", (uint64_t) (vm_stat.swapins));
fc6d9e4b A	154	sspstat("Swapouts:", (uint64_t) (vm_stat.swapouts));
ef8ad44b A	155	}
	156
	157	void
	158	sspstat(char *str, uint64_t n)
	159	{
fc6d9e4b	160	printf("%-30s %16llu.\n", str, n);
ef8ad44b A	161	}
ef8ad44b A	162
1815bff5	163	void
83f6dbe8	164	banner(void)
1815bff5 A	165	{
	166	get_stats(&vm_stat);
	167	printf("Mach Virtual Memory Statistics: ");
1a7e3f61	168	printf("(page size of %llu bytes)\n", (mach_vm_size_t)vm_kernel_page_size);
fc6d9e4b A	169	printf("%8s %8s %8s %8s %8s %8s %8s %8s %8s %8s %8s %8s %11s %9s %8s %8s %8s %8s %8s %8s %8s %8s\n",
	170	"free",
	171	"active",
	172	"specul",
	173	"inactive",
	174	"throttle",
	175	"wired",
	176	"prgable",
	177	"faults",
	178	"copy",
	179	"0fill",
	180	"reactive",
	181	"purged",
	182	"file-backed",
	183	"anonymous",
	184	"cmprssed",
	185	"cmprssor",
	186	"dcomprs",
	187	"comprs",
	188	"pageins",
	189	"pageout",
	190	"swapins",
	191	"swapouts");
1815bff5 A	192	bzero(&last, sizeof(last));
	193	}
	194
1815bff5	195	void
83f6dbe8	196	print_stats(void)
1815bff5	197	{
83f6dbe8	198	static int count = 0;
1815bff5 A	199
	200	if (count++ == 0)
	201	banner();
	202
	203	if (count > 20)
	204	count = 0;
	205
	206	get_stats(&vm_stat);
fc6d9e4b A	207	pstat((uint64_t) (vm_stat.free_count - vm_stat.speculative_count), 8);
	208	pstat((uint64_t) (vm_stat.active_count), 8);
	209	pstat((uint64_t) (vm_stat.speculative_count), 8);
ef8ad44b	210	pstat((uint64_t) (vm_stat.inactive_count), 8);
fc6d9e4b A	211	pstat((uint64_t) (vm_stat.throttled_count), 8);
	212	pstat((uint64_t) (vm_stat.wire_count), 8);
	213	pstat((uint64_t) (vm_stat.purgeable_count), 8);
ef8ad44b A	214	pstat((uint64_t) (vm_stat.faults - last.faults), 8);
	215	pstat((uint64_t) (vm_stat.cow_faults - last.cow_faults), 8);
	216	pstat((uint64_t) (vm_stat.zero_fill_count - last.zero_fill_count), 8);
	217	pstat((uint64_t) (vm_stat.reactivations - last.reactivations), 8);
fc6d9e4b A	218	pstat((uint64_t) (vm_stat.purges - last.purges), 8);
	219	pstat((uint64_t) (vm_stat.external_page_count), 11);
	220	pstat((uint64_t) (vm_stat.internal_page_count), 9);
	221	pstat((uint64_t) (vm_stat.total_uncompressed_pages_in_compressor), 8);
	222	pstat((uint64_t) (vm_stat.compressor_page_count), 8);
	223	pstat((uint64_t) (vm_stat.decompressions - last.decompressions), 8);
	224	pstat((uint64_t) (vm_stat.compressions - last.compressions), 8);
ef8ad44b A	225	pstat((uint64_t) (vm_stat.pageins - last.pageins), 8);
ef8ad44b A	226	pstat((uint64_t) (vm_stat.pageouts - last.pageouts), 8);
fc6d9e4b A	227	pstat((uint64_t) (vm_stat.swapins - last.swapins), 8);
fc6d9e4b A	228	pstat((uint64_t) (vm_stat.swapouts - last.swapouts), 8);
ef8ad44b	229	putchar('\n');
1815bff5 A	230	last = vm_stat;
	231	}
	232
	233	void
ef8ad44b A	234	pstat(uint64_t n, int width)
	235	{
	236	char buf[80];
	237	if (width >= sizeof(buf)) {
	238	width = sizeof(buf) -1;
	239	}
	240
ef8ad44b A	241	/* Now that we have the speculative field, there is really not enough
	242	space, but we were actually overflowing three or four fields before
	243	anyway. So any field that overflows we drop some insignifigant
	244	digets and slap on the appropriate suffix
	245	*/
	246	int w = snprintf(buf, sizeof(buf), "%*llu", width, n);
	247	if (w > width) {
	248	w = snprintf(buf, sizeof(buf), "%*lluK", width -1, n / 1000);
	249	if (w > width) {
	250	w = snprintf(buf, sizeof(buf), "%*lluM", width -1, n / 1000000);
	251	if (w > width) {
	252	w = snprintf(buf, sizeof(buf), "%*lluG", width -1, n / 1000000000);
	253	}
	254	}
	255	}
	256	fputs(buf, stdout);
	257	putchar(' ');
	258	}
	259
	260	void
	261	get_stats(vm_statistics64_t stat)
1815bff5	262	{
ef8ad44b	263	unsigned int count = HOST_VM_INFO64_COUNT;
381af97e A	264	kern_return_t ret;
	265	if ((ret = host_statistics64(myHost, HOST_VM_INFO64, (host_info64_t)stat, &count) != KERN_SUCCESS)) {
	266	fprintf(stderr, "%s: failed to get statistics. error %d\n", pgmname, ret);
83f6dbe8	267	exit(EXIT_FAILURE);
1815bff5	268	}
1815bff5	269	}