FWSM 3.1(8) - Security context high CPU usage

limtohsoon · ‎01-17-2008

Hi Sir,

Below is output of "sh cpu usage context all" on a FWSM version 3.1(8):

FWSM# sh cpu usage context all

5 sec 1 min 5 min Context Name

10.0% 9.0% 8.9% system

0.0% 0.0% 0.0% admin

47.5% 46.4% 45.8% fwsm-context1

0.0% 0.0% 0.0% fwsm-context2

0.1% 0.0% 0.0% fwsm-context3

1.3% 1.2% 1.2% fwsm-context4

0.4% 0.4% 0.4% fwsm-context5

0.2% 0.1% 0.1% fwsm-context6

0.3% 0.2% 0.2% fwsm-context7

0.1% 0.1% 0.1% fwsm-context8

0.0% 0.0% 0.0% fwsm-context9

0.2% 0.0% 0.0% fwsm-context10

Any way to see the breakdown of the CPU processes that contribute to the high utilization of fwsm-context1?

Users have been complaining slow access to servers connected to fwsm-context1 after the FWSM was upgraded from 2.3(3) to 3.1(8). Unfortunately I don't have the benchmark of the CPU usage on version 2.3.

Thank you.

B.Rgds,

Lim TS

jsivulka · ‎01-23-2008

In FWSM 3.x, "show cpu context all" shows where ALL the CPU cycles are

spent and each column should add to 100%. As a result, the numbers for

"system" and "" represent both idle and "work" cycles. If you

do that command in a totally idle system, you'll see that the columns

add to 100% and all the CPU cycles are spent in system and kernel, even

though there's no "real work" being done and "show cpu" shows 0% across

the board.