Add --turbo option to skip disabling turbo (#307)

Author: k0kubun

run_benchmarks.rb

@@ -57,20 +57,20 @@ def have_yjit?(ruby)
   ruby_version.downcase.include?("yjit")
 end
 
-def set_bench_config
+def set_bench_config(turbo:)
   if File.exist?('/sys/devices/system/cpu/intel_pstate') # Intel
     # sudo requires the flag '-S' in order to take input from stdin
-    check_call("sudo -S sh -c 'echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo'") unless intel_no_turbo?
+    check_call("sudo -S sh -c 'echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo'") unless turbo || intel_no_turbo?
     check_call("sudo -S sh -c 'echo 100 > /sys/devices/system/cpu/intel_pstate/min_perf_pct'") unless intel_perf_100pct?
   elsif File.exist?('/sys/devices/system/cpu/cpufreq/boost') # AMD
-    check_call("sudo -S sh -c 'echo 0 > /sys/devices/system/cpu/cpufreq/boost'") unless amd_no_boost?
+    check_call("sudo -S sh -c 'echo 0 > /sys/devices/system/cpu/cpufreq/boost'") unless turbo || amd_no_boost?
     check_call("sudo -S cpupower frequency-set -g performance") unless performance_governor?
   end
 end
 
-def check_pstate
+def check_pstate(turbo:)
   if File.exist?('/sys/devices/system/cpu/intel_pstate') # Intel
-    unless intel_no_turbo?
+    unless turbo || intel_no_turbo?
       puts("You forgot to disable turbo:")
       puts("  sudo sh -c 'echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo'")
       exit(-1)
@@ -82,7 +82,7 @@ def check_pstate
       exit(-1)
     end
   elsif File.exist?('/sys/devices/system/cpu/cpufreq/boost') # AMD
-    unless amd_no_boost?
+    unless turbo || amd_no_boost?
       puts("You forgot to disable boost:")
       puts("  sudo sh -c 'echo 0 > /sys/devices/system/cpu/cpufreq/boost'")
       exit(-1)
@@ -309,6 +309,7 @@ def run_benchmarks(ruby:, ruby_description:, categories:, name_filters:, out_pat
   rss: false,
   graph: false,
   no_pinning: false,
+  turbo: false,
 })
 
 OptionParser.new do |opts|
@@ -398,6 +399,10 @@ def run_benchmarks(ruby:, ruby_description:, categories:, name_filters:, out_pat
   opts.on("--no-pinning", "don't pin ruby to a specific CPU core") do
     args.no_pinning = true
   end
+
+  opts.on("--turbo", "don't disable CPU turbo boost") do
+    args.turbo = true
+  end
 end.parse!
 
 # Remaining arguments are treated as benchmark name filters
@@ -416,10 +421,10 @@ def run_benchmarks(ruby:, ruby_description:, categories:, name_filters:, out_pat
 end
 
 # Disable CPU frequency scaling
-set_bench_config
+set_bench_config(turbo: args.turbo)
 
 # Check pstate status
-check_pstate
+check_pstate(turbo: args.turbo)
 
 # Create the output directory
 FileUtils.mkdir_p(args.out_path)