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use more sysctl

This commit is contained in:
christos 2012-11-23 03:37:27 +00:00
parent abc21e6c39
commit 9a3978f67e
1 changed files with 7 additions and 17 deletions
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24
usr.bin/systat/bufcache.c
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@ -1,4 +1,4 @@
/* $NetBSD: bufcache.c,v 1.22 2008/04/28 20:24:15 martin Exp $ */
/* $NetBSD: bufcache.c,v 1.23 2012/11/23 03:37:27 christos Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: bufcache.c,v 1.22 2008/04/28 20:24:15 martin Exp $");
__RCSID("$NetBSD: bufcache.c,v 1.23 2012/11/23 03:37:27 christos Exp $");
#endif /* not lint */
#include <sys/param.h>
@ -74,16 +74,10 @@ struct ml_entry {
struct mount ml_mount;
};
static struct nlist namelist[] = {
#define X_BUFMEM 0
{ .n_name = "_bufmem" },
{ .n_name = NULL },
};
static struct vcache vcache[VCACHE_SIZE];
static LIST_HEAD(mount_list, ml_entry) mount_list;
static u_long bufmem;
static uint64_t bufmem;
static u_int nbuf, pgwidth, kbwidth;
static struct uvmexp_sysctl uvmexp;
@ -133,8 +127,11 @@ showbufcache(void)
int tbuf, i, lastrow;
double tvalid, tsize;
struct ml_entry *ml;
size_t len;
NREAD(X_BUFMEM, &bufmem, sizeof(bufmem));
len = sizeof(bufmem);
if (sysctlbyname("vm.bufmem", &bufmem, &len, NULL, 0))
error("can't get \"vm.bufmmem\": %s", strerror(errno));
mvwprintw(wnd, 0, 0,
" %*d metadata buffers using %*ld kBytes of "
@ -218,13 +215,6 @@ showbufcache(void)
int
initbufcache(void)
{
if (namelist[0].n_type == 0) {
if (kvm_nlist(kd, namelist)) {
nlisterr(namelist);
return(0);
}
}
fetchuvmexp();
pgwidth = (int)(floor(log10((double)uvmexp.npages)) + 1);
kbwidth = (int)(floor(log10(uvmexp.npages * getpagesize() / 1024.0)) +