X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=README;h=f466c4d27c94dc7465d2b0ad8488f59d560caf07;hb=7a9796b71b5cbf50959196f91a3183d8815483a2;hp=69aa06bc0b036be56553a43c7ad6eaeb633381a2;hpb=2ae36849ba8e31e2e90b1ee1bfb6c73159d47cc6;p=perl%2Fmodules%2FScalar-Vec-Util.git

diff --git a/README b/README
index 69aa06b..f466c4d 100644
--- a/README
+++ b/README
@@ -2,7 +2,7 @@ NAME
     Scalar::Vec::Util - Utility routines for vec strings.
 
 VERSION
-    Version 0.02
+    Version 0.05
 
 SYNOPSIS
         use Scalar::Vec::Util qw/vfill vcopy veq/;
@@ -56,6 +56,79 @@ EXPORT
     The constants "SVU_PP" and "SVU_SIZE" are also only exported on request.
     They are all exported by the tags ':consts' and ':all'.
 
+BENCHMARKS
+    The following timings were obtained by running the "samples/bench.pl"
+    script. The "_pp" entries are the pure Perl versions, while "_bv" are
+    Bit::Vector versions.
+
+    This is for perl 5.8.8 on a Core 2 Duo 2.66GHz machine (unit is 64
+    bits).
+            Filling bits at a given position :
+                          Rate vfill_pp vfill_bv    vfill
+            vfill_pp    80.3/s       --    -100%    -100%
+            vfill_bv 1053399/s 1312401%       --     -11%
+            vfill    1180792/s 1471129%      12%       --
+
+            Copying bits from a bit vector to a different one :
+                         Rate vcopy_pp vcopy_bv    vcopy
+            vcopy_pp    112/s       --    -100%    -100%
+            vcopy_bv  62599/s   55622%       --     -89%
+            vcopy    558491/s  497036%     792%       --
+
+            Moving bits in the same bit vector from a given position to a different one :
+                         Rate vmove_pp vmove_bv    vmove
+            vmove_pp   64.8/s       --    -100%    -100%
+            vmove_bv  64742/s   99751%       --     -88%
+            vmove    547980/s  845043%     746%       --
+
+            Testing bit equality from different positions of different bit vectors :
+                       Rate  veq_pp  veq_bv     veq
+            veq_pp   92.7/s      --   -100%   -100%
+            veq_bv  32777/s  35241%      --    -94%
+            veq    505828/s 545300%   1443%      --
+
+    This is for perl 5.10.0 on a Pentium 4 3.0GHz (unit is 32 bits).
+                         Rate vfill_pp vfill_bv    vfill
+            vfill_pp    185/s       --    -100%    -100%
+            vfill_bv 407979/s  220068%       --     -16%
+            vfill    486022/s  262184%      19%       --
+
+                         Rate vcopy_pp vcopy_bv    vcopy
+            vcopy_pp   61.5/s       --    -100%    -100%
+            vcopy_bv  32548/s   52853%       --     -83%
+            vcopy    187360/s  304724%     476%       --
+
+                         Rate vmove_pp vmove_bv    vmove
+            vmove_pp   63.1/s       --    -100%    -100%
+            vmove_bv  32829/s   51933%       --     -83%
+            vmove    188572/s  298787%     474%       --
+
+                       Rate  veq_pp  veq_bv     veq
+            veq_pp   34.2/s      --   -100%   -100%
+            veq_bv  17518/s  51190%      --    -91%
+            veq    192181/s 562591%    997%      --
+
+    This is for perl 5.10.0 on an UltraSPARC-IIi (unit is 8 bits).
+                        Rate vfill_pp    vfill vfill_bv
+            vfill_pp  4.23/s       --    -100%    -100%
+            vfill    30039/s  709283%       --     -17%
+            vfill_bv 36022/s  850568%      20%       --
+
+                        Rate vcopy_pp vcopy_bv    vcopy
+            vcopy_pp  2.74/s       --    -100%    -100%
+            vcopy_bv  8146/s  297694%       --     -60%
+            vcopy    20266/s  740740%     149%       --
+
+                        Rate vmove_pp vmove_bv    vmove
+            vmove_pp  2.66/s       --    -100%    -100%
+            vmove_bv  8274/s  311196%       --     -59%
+            vmove    20287/s  763190%     145%       --
+
+                      Rate  veq_pp  veq_bv     veq
+            veq_pp  7.33/s      --   -100%   -100%
+            veq_bv  2499/s  33978%      --    -87%
+            veq    19675/s 268193%    687%      --
+
 CAVEATS
     Please report architectures where we can't use the alignment as the move
     unit. I'll add exceptions for them.