[j-nsp] j-series high cpu after upgrade
Rafal Grzeskowiak
rav at man.koszalin.pl
Wed Mar 9 09:11:42 EST 2011
Hi,
I experienced similar problems after upgrading 9.x to 10.x on J4350
(with BGP and flowd as well). The JTAC was helpless with this case.
Since I had 90+ percent of memory utilization, I decided to upgrade RAM
from 1 to 2GB and it solved the issue (CPU load has decreased).
New JUNOS (10.x) consumes much more resources than the previous versions.
BR,
r.
> Hi,
>
> I upgraded our J2320 from 9.5 to 10.2 this week - the box is now crawling
> with CPU consistently 90%. As far as I can see we're still well within the
> spec of the box though - aggregate traffic is< 100Mb/s; no. of flow
> sessions is between 10k-20k. It is not doing anything overly-complicated -
> firewalling between 5 zones, a handful of bgp sessions exchanging only a
> small number of routes. "Top" shows that it is flowd that is consuming the
> CPU but that doesn't really tell me anything useful:
>
>> show chassis routing-engine
> Routing Engine status:
> Temperature 35 degrees C / 95 degrees F
> CPU temperature 44 degrees C / 111 degrees F
> Total memory 512 MB Max 451 MB used ( 88 percent)
> Control plane memory 298 MB Max 271 MB used ( 91 percent)
> Data plane memory 214 MB Max 180 MB used ( 84 percent)
> CPU utilization:
> User 9 percent
> Real-time threads 91 percent
> Kernel 0 percent
> Idle 0 percent
> Model RE-J2320-2000
> Serial ID VH6168
> Start time 2011-03-08 22:56:09 GMT
> Uptime 14 hours, 40 minutes, 31 seconds
> Last reboot reason 0x2:watchdog
> Load averages: 1 minute 5 minute 15 minute
> 1.69 1.60 1.48
>
>> show chassis forwarding
> FWDD status:
> State Online
> Microkernel CPU utilization 11 percent
> Real-time threads CPU utilization 87 percent
> Heap utilization 84 percent
> Buffer utilization 0 percent
> Uptime: 3 hours, 25 minutes, 2 seconds
>
> Anyone any thoughts before I roll back?
>
> regards
> Liam.
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