diff --git a/harness/harness-common.rb b/harness/harness-common.rb
index f225f0cf..65c33d6a 100644
--- a/harness/harness-common.rb
+++ b/harness/harness-common.rb
@@ -153,6 +153,12 @@ def return_results(warmup_iterations, bench_iterations)
   end
 
   write_json_file(yjit_bench_results)
+
+  if ENV["YJIT_BENCH_SHOW_DEBUG_COUNTERS"]=="1"
+    ENV["RUBY_DEBUG_COUNTER_DISABLE"] = "0"
+    RubyVM.show_debug_counters if defined?(RubyVM.show_debug_counters)
+    ENV["RUBY_DEBUG_COUNTER_DISABLE"] = "1"
+  end
 end
 
 def write_json_file(yjit_bench_results)
diff --git a/harness/harness.rb b/harness/harness.rb
index f1dd8405..259e4730 100644
--- a/harness/harness.rb
+++ b/harness/harness.rb
@@ -39,6 +39,7 @@ def run_benchmark(_num_itrs_hint, &block)
   header = "itr:   time"
 
   RubyVM::YJIT.reset_stats! if defined?(RubyVM::YJIT) && RubyVM::YJIT.enabled?
+  RubyVM.reset_debug_counters if defined?(RubyVM.reset_debug_counters)
 
   # If $YJIT_BENCH_STATS is given, print the diff of these stats at each iteration.
   if ENV["YJIT_BENCH_STATS"]
diff --git a/run_benchmarks.rb b/run_benchmarks.rb
index a4eafbdc..ffa86d52 100755
--- a/run_benchmarks.rb
+++ b/run_benchmarks.rb
@@ -420,6 +420,12 @@ def run_benchmarks(ruby:, ruby_description:, categories:, name_filters:, out_pat
   opts.on("--turbo", "don't disable CPU turbo boost") do
     args.turbo = true
   end
+
+  opts.on("--show-debug-counters", "Show debug counters (if available) after each benchmark has run") do
+    # disable showing debug counters for any subprocesses of ruby that we run except the benchmark scripts themselves
+    ENV["RUBY_DEBUG_COUNTER_DISABLE"] = "1"
+    ENV["YJIT_BENCH_SHOW_DEBUG_COUNTERS"] = "1"
+  end
 end.parse!
 
 # Remaining arguments are treated as benchmark name filters