X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;ds=sidebyside;f=lib%2FScalar%2FVec%2FUtil.pm;h=4f69d8fd1d930c524362dbb8c2c51ad613be4632;hb=831b8bd03ca3ae94e3ba9e1e1b7d9be913dc9d13;hp=5d88b5ce07b5ace64ee37e116752f6b45e822bfc;hpb=cf377929a69f04623e2104bb4b2a7ed7ce467072;p=perl%2Fmodules%2FScalar-Vec-Util.git diff --git a/lib/Scalar/Vec/Util.pm b/lib/Scalar/Vec/Util.pm index 5d88b5c..4f69d8f 100644 --- a/lib/Scalar/Vec/Util.pm +++ b/lib/Scalar/Vec/Util.pm @@ -11,13 +11,13 @@ Scalar::Vec::Util - Utility routines for vec strings. =head1 VERSION -Version 0.03 +Version 0.04 =cut our $VERSION; BEGIN { - $VERSION = '0.03'; + $VERSION = '0.04'; eval { require XSLoader; XSLoader::load(__PACKAGE__, $VERSION); @@ -135,38 +135,80 @@ $EXPORT_TAGS{'all'} = [ @EXPORT_OK ]; =head1 BENCHMARKS -The following timings were obtained by running the C script with perl 5.8.8 on a Core 2 Duo 2.66GHz machine. The C<_pp> entries are the pure Perl versions, while C<_bv> are L versions. +The following timings were obtained by running the C script. The C<_pp> entries are the pure Perl versions, while C<_bv> are L versions. =over 4 -=item Filling bits at a given position : +=item 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% -- -=item Copying bits from a bit vector to a different one : - + 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% -- -=item Moving bits in the same bit vector from a given position to a different one : - + 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% -- -=item Testing bit equality from different positions of different bit vectors : - + 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% -- +=item 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% -- + +=item 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% -- + =back =head1 CAVEATS