alt Hacker NewsIntel published some guidance on doing precise benchmarks. Basically run your code inside the kernel, turn off interrupts, use the cpuid instruction to prevent out-of-order execution, use rdtscp instruction instead of rdtsc, etc.
Intel published some guidance on doing precise benchmarks. Basically run your code inside the kernel, turn off interrupts, use the cpuid instruction to prevent out-of-order execution, use rdtscp instruction instead of rdtsc, etc.
> prevent out-of-order execution
Won't this make the results inaccurate?