The tables in this topic provide examples of host CPU loading for the following boards:
Use this information to estimate how a fax application will affect your host system resources. The percentage of CPU resources used will vary from the statistics presented here depending on the following factors:
The image size, format, and resolution of the documents used in your fax application.
The host system configuration.
Other processing that occurs during NaturalFax processing.
The following statistics were taken from tests performed on a system with an AG 4000/3200 board and a Pentium II 300 MHz PC with 64 MB of RAM. The conversion enabled column indicates that all ports performed on-the-fly conversions. The ECM enabled column indicates that all ports used error correction mode.
|
Total number of ports |
Number of transmit ports |
Number of receive ports |
Conversion enabled |
ECM enabled |
Average system CPU usage |
|---|---|---|---|---|---|
|
60 |
30 |
30 |
No |
No |
12% |
|
60 |
30 |
30 |
Yes |
No |
20% |
|
60 |
30 |
30 |
No |
Yes |
13% |
|
60 |
30 |
30 |
Yes |
Yes |
21% |
|
90 |
45 |
45 |
No |
No |
17% |
|
90 |
45 |
45 |
Yes |
No |
28% |
|
90 |
45 |
45 |
No |
Yes |
18% |
|
90 |
45 |
45 |
Yes |
Yes |
30% |
|
120 |
60 |
60 |
No |
No |
20% |
|
120 |
60 |
60 |
Yes |
No |
34% |
|
120 |
60 |
60 |
No |
Yes |
24% |
|
120 |
60 |
60 |
Yes |
Yes |
38% |
The following table presents the host load test results from QX 2000-based systems with a Pentium 200 MHz processor with 64 MB of RAM. The conversion enabled column indicates that all ports performed on-the-fly conversions. The ECM enabled column indicates that all ports used error correction mode.
|
Total number of ports |
Number of transmit ports |
Number of receive ports |
Modem |
Rate |
Conversion enabled |
ECM enabled |
Average system CPU usage |
|---|---|---|---|---|---|---|---|
|
4 |
2 |
2 |
V.29 |
9.6 |
No |
No |
1.1% |
|
4 |
2 |
2 |
V.29 |
9.6 |
Yes ** |
Yes |
2.5% |
|
4 |
2 |
2 |
V.17 |
14.4 |
No |
No |
2% |
|
4 |
2 |
2 |
V.17 |
14.4 |
Yes * |
Yes |
3.7% |
|
4 |
2 |
2 |
V.17 |
14.4 |
Yes ** |
Yes |
4% |
|
32 |
16 |
16 |
V.17 |
14.4 |
No |
No |
28.5% |
|
32 |
16 |
16 |
V.29 |
9.6 |
No |
Yes |
21.5% |
|
32 |
16 |
16 |
V.29 |
9.6 |
No |
Yes |
21.5% |
|
32 |
16 |
16 |
V.29 |
9.6 |
Yes * |
No |
37.8% |
|
32 |
16 |
16 |
V.17 |
14,4 |
Yes * |
No |
53% |
|
32 |
16 |
16 |
V.29 |
9.6 |
Yes * |
Yes |
36% |
|
32 |
16 |
16 |
V.29 |
9.6 |
Yes ** |
Yes |
56% |
*Conversions from A3 to A4 page width format, LOW to SUPER_HIGH resolution, 1D to 2D encoding format.
** Conversions from A3 to A4 page width format, LOW to SUPER_HIGH resolution, 1D to MMR encoding format.
The following table presents statistics obtained from tests performed on a CompactPCI system with a CG 6000C board and a Pentium II 266 MHz board with 64 MB of RAM running Windows. The conversion enabled column indicates that all ports performed on-the-fly conversions. The ECM enabled column indicates that all ports used error correction mode.
|
Total number of ports |
Number of transmit ports |
Number of receive ports |
Conversion enabled |
ECM enabled |
Average system CPU usage |
|---|---|---|---|---|---|
|
60 |
30 |
30 |
No |
No |
15% |
|
60 |
30 |
30 |
Yes |
No |
24% |
|
60 |
30 |
30 |
No |
Yes |
16% |
|
60 |
30 |
30 |
Yes |
Yes |
28% |
|
90 |
45 |
45 |
No |
No |
22% |
|
90 |
45 |
45 |
Yes |
No |
38% |
|
90 |
45 |
45 |
No |
Yes |
25% |
|
90 |
45 |
45 |
Yes |
Yes |
43% |
|
120 |
60 |
60 |
No |
No |
30% |
|
120 |
60 |
60 |
Yes |
No |
51% |
|
120 |
60 |
60 |
No |
Yes |
32% |
|
120 |
60 |
60 |
Yes |
Yes |
58% |