Benchmark.t: avoid ultra-lightweight code

[perl5.git] / lib / Benchmark.t

diff --git a/lib/Benchmark.t b/lib/Benchmark.t
index 177af10..7706bba 100644 (file)
--- a/lib/Benchmark.t
+++ b/lib/Benchmark.t
@@ -401,7 +401,9 @@ sub check_graph {
 {
     select(OUT);
     my $start = times;
 {
     select(OUT);
     my $start = times;

-    my $chart = cmpthese( -0.1, { a => "++\$i", b => "\$i = sqrt(\$i++)" }, "auto" ) ;
+    my $chart = cmpthese( -0.1, { a => "\$i = sqrt(\$i++) * sqrt(\$i)",
+                                  b => "\$i = sqrt(\$i++)",
+                                }, "auto" ) ;

     my $end = times;
     select(STDOUT);
     ok (($end - $start) > 0.05, "benchmarked code ran for over 0.05 seconds");
     my $end = times;
     select(STDOUT);
     ok (($end - $start) > 0.05, "benchmarked code ran for over 0.05 seconds");


@@ -423,7 +425,8 @@ sub check_graph {
 {
     select(OUT);
     my $start = times;
 {
     select(OUT);
     my $start = times;

-    my $chart = cmpthese( -0.1, { a => "++\$i", b => "\$i = sqrt(\$i++)" } ) ;
+    my $chart = cmpthese( -0.1, { a => "\$i = sqrt(\$i++) * sqrt(\$i)",
+                                  b => "\$i = sqrt(\$i++)" });

     my $end = times;
     select(STDOUT);
     ok (($end - $start) > 0.05, "benchmarked code ran for over 0.05 seconds");
     my $end = times;
     select(STDOUT);
     ok (($end - $start) > 0.05, "benchmarked code ran for over 0.05 seconds");