Is anyone seeing problems with bsnmpd reporting an incorrect

HOST-RESOURCES-MIB::hrProcessorLoad value under HEAD? I'm using the

default /etc/snmpd.config settings and am loading the

/usr/lib/snmp_hostres.so library just as I do in 6.3, but the value for

this MIB always reports CPU utilization at 100% regardless of the actual

load on the system. 6.3 and 6-STABLE both work correctly and report the

actual CPU utilization when queried.
I tested this on my 7-STABLE build system and see the same anomaly as I

do with HEAD. I last csuped CURRENT on 4/29 15:00 GMT. I'm thinking I'm

doing something wrong but wanted to see if anyone else was experiencing

this.
Thanks,

Proto

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IIRC, I noticed this when I changed to ULE from 4BSD_SCHED.
         ---Mike 
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Would match my environment as well, as I'm using ULE on all of the

affected systems. Just built a 4BSD kernel on my HEAD system and

HOST-RESOURCES-MIB::hrProcessorLoad reports a correct value again.
Anyone have an idea on a fix?
Thanks,

Proto

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On Tue, 6 May 2008, Michael Proto wrote:
MP>Mike Tancsa wrote:

MP>> At 08:55 PM 5/6/2008, Michael Proto wrote:

MP>> > Is anyone seeing problems with bsnmpd reporting an incorrect

MP>> > HOST-RESOURCES-MIB::hrProcessorLoad value under HEAD? I'm using the

MP>> > default /etc/snmpd.config settings and am loading the

MP>> > /usr/lib/snmp_hostres.so library just as I do in 6.3, but the value for

MP>> > this MIB always reports CPU utilization at 100% regardless of the actual

MP>> > load on the system. 6.3 and 6-STABLE both work correctly and report the

MP>> > actual CPU utilization when queried.

MP>>

MP>> IIRC, I noticed this when I changed to ULE from 4BSD_SCHED.

MP>>

MP>>         ---Mike

MP>> _______________________________________________

MP>> freebsd-current@freebsd.org mailing list

MP>> http://lists.freebsd.org/mailman/listinfo/freebsd-current

MP>> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"

MP>

MP>Would match my environment as well, as I'm using ULE on all of the

MP>affected systems. Just built a 4BSD kernel on my HEAD system and

MP>HOST-RESOURCES-MIB::hrProcessorLoad reports a correct value again.

MP>

MP>Anyone have an idea on a fix?
If anybody has a fix that works with both schedulers, I happily commit

this.
harti

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Here you are :)
--- hostres_processor_tbl.c.old	2008-05-07 17:23:47.000000000 +0700

+++ hostres_processor_tbl.c	2008-05-07 17:23:54.000000000 +0700

@@ -120,7 +120,7 @@ static double

 processor_getpcpu(struct kinfo_proc *ki_p)

 {
-	if (ccpu == 0 || fscale == 0)

+	if (fscale == 0)

 		return (0.0);
 #define	fxtofl(fixpt) ((double)(fixpt) / fscale)
--

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This worked (sorta). On my PCEngines ALIX platform CPU utilization on

HEAD dropped down to 0-2% from a constant 100%. It looks slightly

incorrect though, as there is 3-4% interrupt load at all times on that

system (as per top and vmstat). Still a much better representation than

before though.
So is this fix facetious and I'm not seeing it due to my lack of C prowess?
Thanks,

Proto

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This patch just fix "Stolen from /usr/src/bin/ps/print.c" :)

In ULE ccpu is 0.
--

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On Mon, 19 May 2008, Michael Proto wrote:
there are further problems. I talked with Jeffr about this and

forwarded him the details.
As we all have been in transit the last days/... give him a few more

days.
/bz
--

Bjoern A. Zeeb              Stop bit received. Insert coin for new game.

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The problem as dwhite told syrinx and I found out it that ccpu is 0

for ULE and there is a return 0.0 for that case.
The problem is that after removing that patch I see "something".
Pinning my a.out to the 2nd of my 2 single core opterons, top reports

CPU 1 100% a.out but snmp says 0 even if I leave that runnign for a

few minutes.
I am not sure if hostres is doing it all correct, nor am I sure

sched_ule.c/kern_proc.c are right. This needs more investigation.

Either syrinx or I will have a look. Worst I'll try to catch Jeff.
/bz
--

Bjoern A. Zeeb              Stop bit received. Insert coin for new game.

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