usr/src/usr.bin/vmstat.sparc/mem.c

/*
 * Copyright (c) 1993 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)mem.c       5.1 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/malloc.h>

#include <errno.h>
#include <kvm.h>
#include <nlist.h>
#include <stdio.h>

#include "extern.h"

static struct nlist nl[] = {
#define X_KMEMSTATS     0
        { "_kmemstats" },
#define X_BUCKET        1
        { "_bucket" },
        0
};
/*
 * These names are defined in <sys/malloc.h>.
 */
char *kmemnames[] = INITKMEMNAMES;

void
domem()
{
        register struct kmembuckets *kp;
        register struct kmemstats *ks;
        register int i;
        int size;
        long totuse = 0, totfree = 0, totreq = 0;
        struct kmemstats kmemstats[M_LAST];
        struct kmembuckets buckets[MINBUCKET + 16];

        knlist(nl);
        kread(nl[X_BUCKET].n_value, &buckets, sizeof buckets, "kmembucket");
        (void)printf("Memory statistics by bucket size\n");
        (void)printf(
            "    Size   In Use   Free   Requests  HighWater  Couldfree\n");
        for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) {
                if (kp->kb_calls == 0)
                        continue;
                size = 1 << i;
                (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size,
                        kp->kb_total - kp->kb_totalfree,
                        kp->kb_totalfree, kp->kb_calls,
                        kp->kb_highwat, kp->kb_couldfree);
                totfree += size * kp->kb_totalfree;
        }

        kread(nl[X_KMEMSTATS].n_value, &kmemstats, sizeof kmemstats,
            "kmemstats");
        (void)printf("\nMemory statistics by type\n");
        (void)printf(
"       Type  In Use  MemUse   HighUse  Limit Requests  TypeLimit KernLimit\n");
        for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
                if (ks->ks_calls == 0)
                        continue;
                (void)printf("%11s %6ld %7ldK %8ldK %5ldK %8ld %6u %9u\n",
                    kmemnames[i] ? kmemnames[i] : "undefined",
                    ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
                    (ks->ks_maxused + 1023) / 1024,
                    (ks->ks_limit + 1023) / 1024, ks->ks_calls,
                    ks->ks_limblocks, ks->ks_mapblocks);
                totuse += ks->ks_memuse;
                totreq += ks->ks_calls;
        }
        (void)printf("\nMemory Totals:  In Use    Free    Requests\n");
        (void)printf("              %7ldK %6ldK    %8ld\n",
             (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
}