Crate tick_counter

Hardware-based tick counters for high-precision benchmarks

• x86_64 - executes RDTSC CPU instruction to read the time-stamp counter.
• AArch64 - reads value of the CNTVCT_EL0 counter-timer register.

Basic usage

 let start = tick_counter::start();
 // ... lines of code to benchmark
 let elapsed_ticks = tick_counter::stop() - start;
 println!("Number of elapsed ticks: {}", elapsed_ticks);

Basic usage with helper

 use tick_counter::TickCounter;
 
 let tick_counter = TickCounter::current();
 // ... lines of code to benchmark
 let elapsed_ticks = tick_counter.elapsed();
 println!("Number of elapsed ticks: {}", elapsed_ticks);

Structs

• TickCounter
  TickCounter helper

Enums

• TickCounterFrequencyBase
  The origin of the provided counter frequency

Functions

• precision_nanoseconds
  Returns a precision of tick counters in nanoseconds
• x86_64_processor_id
  Returns a tick counter and CPUID values based on Intel CPU’s RDTSCP instruction
• x86_64_tick_counter
  Returns a current value of the tick counter based on Intel CPU’s RDTSC instruction