On Wed, May 28, 2014 at 02:00:06PM +0200, Marco van de Voort wrote: > - Is rdtsc safe for CPUs that can vary clock of cores independently like > Core Mono? What if the process changed CPU to a different clocked core?
I've read that on recent CPUs, the TSC is unaffected by the actual clock rate of the CPU. On linux, The TSC gets calibrated and the synchronisation is tested, which may result in the TSC clock source being marked as unstable and disabled. In this case, it will fall back to using other clock sources (HPET is next in line on my computer). Henry _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
