KPA EtherCAT Master Stack Benchmark
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Master Stack Benchmark

 

Size of Process Data: 30 byte (18 byte Inputs / 12 byte Outputs)

Cycle Times
in μs		 INtime Linux Preemption patch QNX vxworks RTX wince winxp
Required 50 100 50 100 50 100 1000
Average 49 109 49 99 50 99 ~980
Jitter -1 9 -1 -1 0 -1 ~-20
Minimum 43 104 39 86 42 89 ~400
Maximum 57 123 59 113 57 111 ~10000

* - "50μs" is set as kernel clock time
** - "100μs" is set as kernel clock time (as "cheater" operation by decreasing of OS's timer period)


 

Size of Process Data: 1630 byte (1586 byte Inputs / 44 byte Outputs).

Cycle Times
in μs		 INtime Linux Preemption patch QNX vxworks RTX wince winxp
Required 200 200 200 200 200 200 1000
Average 199 208 197 199 200 200 ~980
Jitter -1 8 -3 -1 0 0 ~-20
Minimum 194 204 183 185 197 189 ~400
Maximum 205 221 209 214 203 210 ~10000

* - "50μs" is set as kernel clock time ** - "200μs" is set as kernel clock time (as "cheater" operation by decreasing of OS's timer period)

Note: All measurements were executed on PCs with x86 architecture. Power-PC architecture currently is also available for KPA EtherCAT Master for VxWorks and QNX RTOS's.

Test Platform
Processor: Intel® Xeon® 5150
NIC: Intel® PRO 100