Clarify benchtest output

smbolton · Mar 14, 2018 · 59bcb87 · 59bcb87
1 parent d9c513e
commit 59bcb87
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Showing 2 changed files with 15 additions and 17 deletions.
diff --git a/README b/README
@@ -493,20 +493,20 @@ test results say that floating-point is faster, then you can
 configure hexter to use floating-point with the
 '--enable-floating-point' configure option.
 
-Here are some test results from a few machines. Lower percentages
-indicate the faster mode.
+Here are some test results from a few machines. Percentages indicate
+the speed relative to the faster mode.
 
 Processor                              Fixed Point  Floating Point
 -------------------------------------  -----------  --------------
-PowerPC G4 800MHz                         49.5%        100.0%
-PowerPC G4 1.07GHz                        49.8%        100.0%
-Pentium III (Coppermine) 933MHz          100.0%         95.2%
-Intel Core Duo 1.83GHz, OS X 10.4.9      100.0%         92.9%
-Intel Core 2 Duo 2.4GHz, Linux 3.2       100.0%         96.1% *
-Intel Core 2 Duo 2.4GHz, OS X 10.4.11    100.0%         91.4% *
-Intel Core 2 Duo 2.4GHz, OS X 10.6.8      61.5%        100.0% *
-Intel Core 2 Duo 2.5GHz, OS X 10.6.7      62.0%        100.0%
-Intel Core i7, OS X 10.7                  52.0%        100.0%
+PowerPC G4 800MHz                        faster          49.5%
+PowerPC G4 1.07GHz                       faster          49.8%
+Pentium III (Coppermine) 933MHz           95.2%         faster
+Intel Core Duo 1.83GHz, OS X 10.4.9       92.9%         faster
+Intel Core 2 Duo 2.4GHz, Linux 3.2        96.1%         faster *
+Intel Core 2 Duo 2.4GHz, OS X 10.4.11     91.4%         faster *
+Intel Core 2 Duo 2.4GHz, OS X 10.6.8     faster          61.5% *
+Intel Core 2 Duo 2.5GHz, OS X 10.6.7     faster          62.0%
+Intel Core i7, OS X 10.7                 faster          52.0%
 
 * These three all come from the same machine!
 

diff --git a/fptest/harness.c b/fptest/harness.c
@@ -178,14 +178,12 @@ main(int argc, char **argv)
 
     if (usage[FIX] > usage[FLOAT]) {
         printf("On this system, with this compilation, it seems that floating point is faster:\n");
-        printf("                 seconds     ratio\n");
-        printf("Fixed point:     %7f   %5.1f%%\n", usage[FIX], 100.0);
-        printf("Floating point:  %7f   %5.1f%%\n", usage[FLOAT], 100.0 * usage[FLOAT] / usage[FIX]);
+        printf("Fixed point:     %7f seconds  -> %.1f%% as fast as floating point\n", usage[FIX], 100.0 * usage[FLOAT] / usage[FIX]);
+        printf("Floating point:  %7f seconds  -> faster mode\n", usage[FLOAT]);
     } else {
         printf("On this system, with this compilation, it seems that fixed point is faster:\n");
-        printf("                 seconds     ratio\n");
-        printf("Fixed point:     %7f   %5.1f%%\n", usage[FIX], 100.0 * usage[FIX] / usage[FLOAT]);
-        printf("Floating point:  %7f   %5.1f%%\n", usage[FLOAT], 100.0);
+        printf("Fixed point:     %7f seconds  -> faster mode\n", usage[FIX]);
+        printf("Floating point:  %7f seconds  -> %.1f%% as fast as fixed point\n", usage[FLOAT], 100.0 * usage[FIX] / usage[FLOAT]);
     }
 
     return 0;