CPU usage

[pslavkovsky]

Hi,

I have this utilzation on PIX 535:

CPU utilization for 5 seconds = 94%; 1 minute: 94%; 5 minutes: 93%

Where may be a reason this high utilization CPU?

Thanks.

Peter

[jmia]

Hi Peter -

Try command 'show process' to see what is taking up the CPU process.

Please read the following doc for troubleshooting:

http://www.cisco.com/warp/public/110/pixperformance.html

Let me know if this helps - Thanks, Jay

[pslavkovsky]

Hi, thanks for doc.

I try "show proc" and after minute I try again.

I measure RUNTIME.

Result is follow:

Hosts conn cleaner 31890

pix/intf1 1800

pix/intf0 1550

i82543_timer 1100

557poll 1260

ip/1:1 330

ip/0:0 380

It looks like Process "Hosts conn cleaner" most utilize CPU.

Whats now?

Peter

[jmia · Accepted solution]

Peter -

'Hosts conn cleaner' =

"Hosts conn cleaner Thread that removes connections marked for deletion. Also known as the garbage collector".

Have you got any syslog messages that you could provide? if you have syslog then can you see/notice a lot of translation/connection failures??

Try also, command 'clear xlate' and see if you still see counter for 'Host conn cleaner' going up. Let me know. Thanks - Jay

[scoclayton]

Still could be a lot of things. Any chance you can post a 'sh tech' from the PIX with your addresses and passwords removed?

Scott

[pslavkovsky]

I change in configuration follow:

I had "timeout conn 0:0:0" and conn count was 80.000

I have now timeout conn 3:00:00 and conn count is 10.000

Process "Hosts conn cleaner" is now 0 miliseconds

and utilozation of CPU:

CPU utilization for 5 seconds = 67%; 1 minute: 60%; 5 minutes: 57%

Is this utilization correct or still high?

Peter

[jmia]

Peter -

Can you also provide 'sh tech' output as Scott asked on his post please. (remember to remove passwords etc).

Thanks -

[pslavkovsky]

Hi,

now is

CPU utilization for 5 seconds = 2%; 1 minute: 2%; 5 minutes: 2%

It looks good.

Thank you very much.

Peter