[ again, no top-posting please... ] Michel Macena Oliveira wrote: > > If I understand correctly when Cyclictest writes to the > cpu_dma_latency file, the processor does not sleep and remain > full power all the time. Is there any problem writing a RT application > (not a benchmark one) with this trick? > Well, if you do it for the benchmark, but not for production, then of course, the benchmark is meaningless. > > Could it cause any harm to the system? > Talk to your CPU provider. Yes, sometimes CPU providers warn about that, especially for x86 (Note: I don't speak for Intel or any other x86 manufacturer). Good luck, -- Ahmed S. Darwish Linutronix GmbH