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KPA EtherCAT主站协议栈基准 |
配置“简单”:
64Bytes帧, 1 LRD / 1 LWR, No DC, No Mailbox (EK1100 – EL1004 – EL2004)
配置“复杂”:
1满帧 (1514Bytes frame for PDO), LRD / LWR commands, DC, Mailbox via EVENT (EK1100-EL1004-EL2004-EL1252-EL3102-EL4102-EL6751-EL6751)
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测试平台:
CPU: Intel® Core i7-3770 CPU 3.40 GHz 3.39GHz
NIC: Intel® Gigabit CT desktop adapter
RAM: 8GB |
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1. 比较主站性能结果,运行在不同的RTOS,但是在相同的目标Intel Core i7 (单CPU核用于所有主站进程) |
配置“简单”:
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 |
 |
 |
 |
 |
主站周期, µs |
100 |
100 |
100 |
100 |
100 |
抖动, ±µs |
1 |
2 |
5 |
7 |
10 |
从站响应时间 (平均), µs |
22 |
32 |
43 |
43 |
33 |
CPU负荷 (平均), % |
13,3 |
21 |
16 |
21 |
21 |
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配置“复杂”:
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 |
 |
 |
 |
 |
主站周期, µs |
200 |
200 |
200 |
200 |
200 |
抖动, ±µs |
1 |
2 |
4 |
3 |
4 |
从站响应时间 (平均), µs |
154 |
150 |
170 |
171 |
166 |
CPU负荷 (平均), % |
3,8 |
12 |
10 |
13 |
13 |
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2. 最佳主站性能结果,运行在不同的RTOS,但是使用相同的目标 (单CPU核用于所有主站进程) |
配置“简单”:
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 |
 |
 |
 |
 |
主站周期, µs |
50 |
50 |
50 |
100 |
100 |
抖动, ±µs |
1 |
3 |
10 |
7 |
10 |
从站响应时间 (平均), µs |
22 |
32 |
43 |
43 |
33 |
CPU负荷 (平均), % |
27,5 |
41 |
31 |
21 |
21 |
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配置“复杂”:
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 |
 |
 |
 |
 |
主站周期, µs |
200 |
200 |
200 |
200 |
200 |
抖动, ±µs |
1 |
2 |
4 |
3 |
4 |
从站响应时间 (平均), µs |
154 |
150 |
170 |
171 |
166 |
CPU负荷 (平均), % |
3,8 |
12 |
10 |
13 |
13 |
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