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by bregma
2265 days ago
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MsgSend() in QNX Neutrino does not circumvent the kernel, just the scheduler. If you're clever and lucky you can get an entire round trip to and from the service in a single timeslice. On the other hand, MsgSend() always blocks, so the call could be preempted depending on service priority or if there is an I/O wait or whatever, and that would mean the scheduler comes to play. |
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