jimzah/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src.git synced 2024-12-03 21:18:59 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Use the vm.zone sysctl rather that grope through the zone allocator's

Browse Source 
internal data structures.
This commit is contained in:
Dag-Erling Smørgrav 2001-01-23 00:31:56 +00:00
parent 97ace1c6ac
commit bec62dd817
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=71404
1 changed files with 14 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
usr.bin/vmstat/vmstat.c
View File

@ -59,7 +59,6 @@ static const char rcsid[] =
#include <sys/vmmeter.h>
#include <vm/vm_param.h>
#include <vm/vm_zone.h>
#include <ctype.h>
#include <err.h>
@ -866,59 +865,23 @@ domem()
void
dozmem()
{
static SLIST_HEAD(vm_zone_list, vm_zone) zlist;
vm_zone_t zonep;
int nmax = 512;
int zused_bytes = 0;
int ztotal_bytes = 0;
char *buf;
size_t bufsize;
printf(
"\n"
"%-16s%-8s%-8s%-8s\n",
"ZONE",
"used",
"total",
"mem-use"
);
SLIST_INIT(&zlist);
kread(X_ZLIST, &zlist, sizeof(zlist));
zonep = SLIST_FIRST(&zlist);
while (zonep != NULL && nmax) {
struct vm_zone zone;
char buf[32];
int n;
if (kvm_read(kd, (u_long)zonep, &zone, sizeof(zone)) != sizeof(zone))
buf = NULL;
bufsize = 1024;
for (;;) {
if ((buf = realloc(buf, bufsize)) == NULL)
err(1, "realloc()");
if (sysctlbyname("vm.zone", buf, &bufsize, 0, NULL) == 0)
break;
n = kvm_read(kd, (u_long)zone.zname, buf, sizeof(buf) - 1);
if (n < 0)
n = 0;
buf[n] = 0;
printf(
"%-15.15s %-7d %-7d %4d/%dK\n",
buf,
zone.ztotal - zone.zfreecnt,
zone.ztotal,
(zone.ztotal - zone.zfreecnt) * zone.zsize / 1024,
zone.ztotal * zone.zsize / 1024
);
zused_bytes += (zone.ztotal - zone.zfreecnt) * zone.zsize;
ztotal_bytes += zone.ztotal * zone.zsize;
--nmax;
zonep = SLIST_NEXT(&zone, zent);
if (errno != ENOMEM)
err(1, "sysctl()");
bufsize *= 2;
}
printf(
"------------------------------------------\n"
"%-15.15s %-7s %-7s %4d/%dK\n\n",
"TOTAL",
"",
"",
zused_bytes / 1024,
ztotal_bytes / 1024
);
buf[bufsize] = '\0'; /* play it safe */
(void)printf("%s\n\n", buf);
free(buf);
}
/*