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-rw-r--r--src/bench/bench.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/bench/bench.cpp b/src/bench/bench.cpp
index dd4ba5ab0e..4c5a036773 100644
--- a/src/bench/bench.cpp
+++ b/src/bench/bench.cpp
@@ -23,6 +23,9 @@ void
benchmark::BenchRunner::RunAll(benchmark::duration elapsedTimeForOne)
{
perf_init();
+ if (std::ratio_less_equal<benchmark::clock::period, std::micro>::value) {
+ std::cerr << "WARNING: Clock precision is worse than microsecond - benchmarks may be less accurate!\n";
+ }
std::cout << "#Benchmark" << "," << "count" << "," << "min(ns)" << "," << "max(ns)" << "," << "average(ns)" << ","
<< "min_cycles" << "," << "max_cycles" << "," << "average_cycles" << "\n";