System-wide totals via sysctl (struct vmtotal)
Hello Gang!
Currently, people, the vm.vmmeter sysctl is bogus and misleading. It
refers to struct vmtotal, which gives us the system wide totals, and
does not relate/refer to struct vmmeter in _any_ way.
It is silently skipped by sysctl -a listing, because there is no handler
for it:
# sysctl vm.vmmeter # nothing returned...
# sysctl -ao vm.vmmeter
vm.vmmeter: Format:S,vmtotal Length:48 Dump:
It has been this from the days of 3.0-CURRENT, and earlier, I think. PR
kern/5689 addressed this problem. Johan Karlsson assigned this PR to
phk@ in 2000 (submitted: 1998), but no action was taken by anyone anyway,
and eventually, patch was left to rot.
Well, I have updated the patch for 3.0-CURRENT, for our latest -current,
and also made one more change vmmeter-vmtotal, as requested in the PR.
The patches are attached with this mail. I would be very grateful is
someone can commit (and review) them for me.
Cheers.
P.S. http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/5689
--
Hiten Pandya ([EMAIL PROTECTED], [EMAIL PROTECTED])
http://www.unixdaemons.com/~hiten/
Index: sbin/sysctl/sysctl.c
===
RCS file: /home/ncvs/src/sbin/sysctl/sysctl.c,v
retrieving revision 1.48
diff -u -r1.48 sysctl.c
--- sbin/sysctl/sysctl.c2002/11/12 21:18:21 1.48
+++ sbin/sysctl/sysctl.c2002/12/08 14:58:56
@@ -54,6 +54,7 @@
#include sys/resource.h
#include sys/stat.h
#include sys/sysctl.h
+#include sys/vmmeter.h
#include ctype.h
#include err.h
@@ -323,6 +324,29 @@
}
static int
+S_vmtotal(int l2, void *p)
+{
+ struct vmtotal *v = (struct vmtotal *)p;
+
+ if (l2 != sizeof(*v)) {
+ warnx(S_vmtotal %d != %d, l2, sizeof(*v));
+ return (0);
+ }
+
+ printf(\nSystem wide totals computed every five seconds:\n);
+ printf(===\n);
+ printf(Processes: (RUNQ:\t %hu Disk Wait: %hu Page Wait: %hu Sleep: %hu)\n,
+ v-t_rq, v-t_dw, v-t_pw, v-t_sl);
+ printf(Virtual Memory:\t\t (Total: %hu Active %hu)\n, v-t_vm, v-t_avm);
+ printf(Real Memory:\t\t (Total: %hu Active %hu)\n, v-t_rm, v-t_arm);
+ printf(Shared Virtual Memory:\t (Total: %hu Active: %hu)\n, v-t_vmshr,
+v-t_avmshr);
+ printf(Shared Real Memory:\t (Total: %hu Active: %hu)\n, v-t_rmshr,
+v-t_armshr);
+ printf(Free Memory Pages:\t %hu\n, v-t_free);
+
+ return (0);
+}
+
+static int
T_dev_t(int l2, void *p)
{
dev_t *d = (dev_t *)p;
@@ -587,6 +611,8 @@
func = S_timeval;
else if (strcmp(fmt, S,loadavg) == 0)
func = S_loadavg;
+ else if (strcmp(fmt, S,vmtotal) == 0)
+ func = S_vmtotal;
else if (strcmp(fmt, T,dev_t) == 0)
func = T_dev_t;
else
Index: sys/vm/vm_meter.c
===
RCS file: /home/ncvs/src/sys/vm/vm_meter.c,v
retrieving revision 1.66
diff -u -r1.66 vm_meter.c
--- sys/vm/vm_meter.c 2002/10/02 20:31:47 1.66
+++ sys/vm/vm_meter.c 2002/12/08 14:59:01
@@ -222,7 +222,7 @@
return(error);
}
-SYSCTL_PROC(_vm, VM_METER, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD,
+SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE|CTLFLAG_RD,
0, sizeof(struct vmtotal), vmtotal, S,vmtotal,
System virtual memory statistics);
SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, VM meter stats);
Index: sys/vm/vm_param.h
===
RCS file: /home/ncvs/src/sys/vm/vm_param.h,v
retrieving revision 1.15
diff -u -r1.15 vm_param.h
--- sys/vm/vm_param.h 2001/10/10 23:06:54 1.15
+++ sys/vm/vm_param.h 2002/12/08 14:59:02
@@ -76,7 +76,7 @@
/*
* CTL_VM identifiers
*/
-#defineVM_METER1 /* struct vmmeter */
+#defineVM_TOTAL1 /* struct vmtotal */
#defineVM_LOADAVG 2 /* struct loadavg */
#define VM_V_FREE_MIN 3 /* cnt.v_free_min */
#define VM_V_FREE_TARGET 4 /* cnt.v_free_target */
@@ -91,7 +91,7 @@
#define CTL_VM_NAMES { \
{ 0, 0 }, \
- { vmmeter, CTLTYPE_STRUCT }, \
+ { vmtotal, CTLTYPE_STRUCT }, \
{ loadavg, CTLTYPE_STRUCT }, \
{ v_free_min, CTLTYPE_INT }, \
{ v_free_target, CTLTYPE_INT }, \
Index: usr.bin/systat/vmstat.c
===
RCS file: /home/ncvs/src/usr.bin/systat/vmstat.c,v
retrieving revision 1.52
diff -u -r1.52 vmstat.c
--- usr.bin/systat/vmstat.c 2002/06/06 23:01:50 1.52
+++ usr.bin/systat/vmstat.c 2002/12/08 14:59:05
@@ -784,7 +784,7 @@
size = sizeof(ls-Total);
mib[0] = CTL_VM;
- mib[1] = VM_METER;
+ mib[1] = VM_TOTAL;
if (sysctl(mib, 2, ls-Total, size, NULL, 0) 0) {
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