IPC speed and compare

Been facing a similar question myself.

I've found the following pages helpful - IPC performance: Named Pipe vs Socket (in particular) and Sockets vs named pipes for local IPC on Windows?.

It sounds like the concensus is that shared memory is the way to go if you're really concerned about performance, but if the current system you have is a message queue it might be a rather... different structure. A socket and/or named pipe might be easier to implement, and if either meets your specs then you're done there.

Best results you'll get with Shared Memory solution.

Recently I met with the same IPC benchmarking. And I think my results will be useful for all who want to compare IPC performance.

Pipe benchmark:

Message size:       128
Message count:      1000000
Total duration:     27367.454 ms
Average duration:   27.319 us
Minimum duration:   5.888 us
Maximum duration:   15763.712 us
Standard deviation: 26.664 us
Message rate:       36539 msg/s

FIFOs (named pipes) benchmark:

Message size:       128
Message count:      1000000
Total duration:     38100.093 ms
Average duration:   38.025 us
Minimum duration:   6.656 us
Maximum duration:   27415.040 us
Standard deviation: 91.614 us
Message rate:       26246 msg/s

Message Queues benchmark:

Message size:       128
Message count:      1000000
Total duration:     14723.159 ms
Average duration:   14.675 us
Minimum duration:   3.840 us
Maximum duration:   17437.184 us
Standard deviation: 53.615 us
Message rate:       67920 msg/s

Shared Memory benchmark:

Message size:       128
Message count:      1000000
Total duration:     261.650 ms
Average duration:   0.238 us
Minimum duration:   0.000 us
Maximum duration:   10092.032 us
Standard deviation: 22.095 us
Message rate:       3821893 msg/s

TCP sockets benchmark:

Message size:       128
Message count:      1000000
Total duration:     44477.257 ms
Average duration:   44.391 us
Minimum duration:   11.520 us
Maximum duration:   15863.296 us
Standard deviation: 44.905 us
Message rate:       22483 msg/s

Unix domain sockets benchmark:

Message size:       128
Message count:      1000000
Total duration:     24579.846 ms
Average duration:   24.531 us
Minimum duration:   2.560 us
Maximum duration:   15932.928 us
Standard deviation: 37.854 us
Message rate:       40683 msg/s

ZeroMQ benchmark:

Message size:       128
Message count:      1000000
Total duration:     64872.327 ms
Average duration:   64.808 us
Minimum duration:   23.552 us
Maximum duration:   16443.392 us
Standard deviation: 133.483 us
Message rate:       15414 msg/s