HP-UX IPFilter Performance White Paper

6
Inbound TCP CPU Utilization
Figure 2 and Table 2 show CPU utilization rates for systems processing 512, 1024, and 8192 byte
inbound packets.
Figure 2 Inbound TCP CPU Utilization
Inbound TCP CPU Utilization
0
5
10
15
20
25
30
35
40
45
512 1024 8192
Packet Size (Bytes)
CPU Utilization (%)
No IPFilter
IPFilter without Rules
IPFilter with Rules
Table 2 Inbound TCP CPU Utilization
Packet Size CPU Utilization
without IPFilter (%)
CPU Utilization with IPFilter
and No Rules (%)
CPU Utilization with IPFilter
Rules (%)
512 30.7 31.49
(2.57% increase)
42.56
(38.63% increase)
1024 29.64 31.75
(7.12% increase)
37.25
(25.67% increase)
8192 19.15 19.33
(0.94% increase)
27
(41% increase)