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by aidenn0
2336 days ago
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> In embedded systems, our kernels and threads are lightweight enough that we can go very fine-grained without paying a steep context-switching penalty. Right, this system would run through the entire runlist at several kHz when idle and 0.5-1kHz under load on a PowerPC 405 that ran at about 200MIPS. Our shortest deadline was 10ms so it was plenty fast enough. Context switch was swapping out 12 machine words. |
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