This article describes the issue of the internet speed being very low and CPU utilization being high, when node-0 is the master; whereas the internet speed is fine, when node-1 is the master.
- The internet speed is very low, when node-0 is the master; whereas it is fine, when node-1 is the master.
- CPU utilization is very high, when node-0 is the master.
- When node-0 is the master, the speed is around 2 Mbps and when node-1 is the master, the speed is up to 45 Mbps.
This issue is due to high CPU utilization on node-0.
In the output of show system process extensive, the av_worker process is high.
Output:
------------------------------------------------------------------------------ root@> show chassis routing-engine no-forwarding Routing Engine status: Temperature 42 degrees C / 107 degrees F CPU temperature 42 degrees C / 107 degrees F Total memory 1024 MB Max 881 MB used ( 86 percent) Control plane memory 560 MB Max 521 MB used ( 93 percent) Data plane memory 464 MB Max 362 MB used ( 78 percent) CPU utilization: User 62 percent Background 0 percent Kernel 37 percent Interrupt 0 percent Idle 0 percent < This indicates High CPU utilization. If this value is 20% or above, then it is fine. However this value should be the maximum, if the device has huge traffic. Model RE-SRX240H Start time 2012-12-27 14:03:02 IST Uptime 48 minutes, 45 seconds Last reboot reason 0x200:normal shutdown root@> show system processes extensive no-forwarding last pid: 2748; load averages: 2.84, 2.26, 2.03 up 0+00:49:19 14:51:51 148 processes: 20 running, 112 sleeping, 5 zombie, 11 waiting Mem: 261M Active, 70M Inact, 596M Wired, 22M Cache, 112M Buf, 21M Free Swap: PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 1260 root 7 76 0 499M 49080K select 0 159:35 297.61% flowd_octeon_hm 1378 root 1 78 0 32596K 23464K select 0 8:15 5.22% av_worker 2745 root 1 98 0 31044K 7416K RUN 0 0:00 4.49% ifinfo 2565 root 1 -8 0 37616K 11756K piperd 0 0:01 2.98% mgd 2564 root 1 77 0 46700K 14084K select 0 0:01 1.46% cli 22 root 1 171 52 0K 16K RUN 0 6:58 0.00% idle: cpu0 1266 root -----------------------------------------------------------------------------------
When troubleshooting the throughput issue, perform the following procedure:
- Check the CPU utilization.
- If the CPU utilization high, then it has to be brought down.
In this case, CPU utilization is high due to the av_worker process. Perform the following procedure to reduce the CPU utilization:
1.De-activate the security UTM:
root# deactivate security utm e
2.De-activate the reference of the UTM policy in the security policy.
3.Commit.
4.Run the following commands:
root> request security utm anti-virus kaspersky-lab-engine pattern-delete root> request security utm anti-virus kaspersky-lab-engine pattern-update root> request security utm anti-virus kaspersky-lab-engine pattern-reload
5.Commit.
6.Now activate UTM again:
root#activate security utm
7.Activate the reference UTM policy again.
8.Commit.
After the above procedure is complete, the CPU utilization will come down and the internet speed issue will be resolved.