From ddf58cb51eecb99edcd7c0d52ec8195709c20cef Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Thu, 1 Feb 2024 02:15:35 +0000
Subject: [PATCH] Change to efficiency reporting

---
 lib/mutant/reporter/cli/printer/env_progress.rb            | 7 +++----
 spec/unit/mutant/reporter/cli/printer/env_progress_spec.rb | 6 +++---
 spec/unit/mutant/reporter/cli/printer/env_result_spec.rb   | 2 +-
 spec/unit/mutant/reporter/cli_spec.rb                      | 2 +-
 4 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/lib/mutant/reporter/cli/printer/env_progress.rb b/lib/mutant/reporter/cli/printer/env_progress.rb
index a3e8bf804..d4e3d9cdc 100644
--- a/lib/mutant/reporter/cli/printer/env_progress.rb
+++ b/lib/mutant/reporter/cli/printer/env_progress.rb
@@ -14,7 +14,6 @@ class EnvProgress < self
             :coverage,
             :env,
             :killtime,
-            :overhead,
             :runtime
           )
 
@@ -25,7 +24,7 @@ class EnvProgress < self
             [:info,   'Timeouts:        %s',      :amount_timeouts        ],
             [:info,   'Runtime:         %0.2fs',  :runtime                ],
             [:info,   'Killtime:        %0.2fs',  :killtime               ],
-            [:info,   'Overhead:        %0.2f%%', :overhead_percent       ],
+            [:info,   'Efficiency:      %0.2f%%', :efficiency_percent     ],
             [:info,   'Mutations/s:     %0.2f',   :mutations_per_second   ],
             [:status, 'Coverage:        %0.2f%%', :coverage_percent       ]
           ].each(&:freeze)
@@ -50,8 +49,8 @@ def coverage_percent
             coverage * 100
           end
 
-          def overhead_percent
-            (overhead / killtime) * 100
+          def efficiency_percent
+            (killtime / runtime) * 100
           end
         end # EnvProgress
       end # Printer
diff --git a/spec/unit/mutant/reporter/cli/printer/env_progress_spec.rb b/spec/unit/mutant/reporter/cli/printer/env_progress_spec.rb
index 449b89544..a66a26b0a 100644
--- a/spec/unit/mutant/reporter/cli/printer/env_progress_spec.rb
+++ b/spec/unit/mutant/reporter/cli/printer/env_progress_spec.rb
@@ -29,7 +29,7 @@
         Timeouts:        0
         Runtime:         4.00s
         Killtime:        0.00s
-        Overhead:        Inf%
+        Efficiency:      0.00%
         Mutations/s:     0.00
         Coverage:        100.00%
       STR
@@ -56,7 +56,7 @@
         Timeouts:        0
         Runtime:         4.00s
         Killtime:        2.00s
-        Overhead:        100.00%
+        Efficiency:      50.00%
         Mutations/s:     0.50
         Coverage:        100.00%
       STR
@@ -85,7 +85,7 @@
         Timeouts:        0
         Runtime:         4.00s
         Killtime:        2.00s
-        Overhead:        100.00%
+        Efficiency:      50.00%
         Mutations/s:     0.50
         Coverage:        50.00%
       STR
diff --git a/spec/unit/mutant/reporter/cli/printer/env_result_spec.rb b/spec/unit/mutant/reporter/cli/printer/env_result_spec.rb
index 4ae5cb73e..28ca9e72a 100644
--- a/spec/unit/mutant/reporter/cli/printer/env_result_spec.rb
+++ b/spec/unit/mutant/reporter/cli/printer/env_result_spec.rb
@@ -36,7 +36,7 @@
       Timeouts:        0
       Runtime:         4.00s
       Killtime:        2.00s
-      Overhead:        100.00%
+      Efficiency:      50.00%
       Mutations/s:     0.50
       Coverage:        50.00%
     STR
diff --git a/spec/unit/mutant/reporter/cli_spec.rb b/spec/unit/mutant/reporter/cli_spec.rb
index 0714456a5..e34a6d493 100644
--- a/spec/unit/mutant/reporter/cli_spec.rb
+++ b/spec/unit/mutant/reporter/cli_spec.rb
@@ -99,7 +99,7 @@ def self.it_reports(expected_content)
       Timeouts:        0
       Runtime:         4.00s
       Killtime:        2.00s
-      Overhead:        100.00%
+      Efficiency:      50.00%
       Mutations/s:     0.50
       Coverage:        100.00%
     REPORT