Revision history for Scalar-Vec-Util
+0.04 2008-06-02 20:40 UTC
+ + Doc : More benchmarks.
+ + Fix : t/02-pp.t failed when the tested version was already installed.
+
0.03 2008-06-01 12:30 UTC
+ Chg : samples/bench.pl now compares with Bit::Vector when available.
+ Doc : Show the benchmark.
--- #YAML:1.0
name: Scalar-Vec-Util
-version: 0.03
+version: 0.04
abstract: Utility routines for vec strings.
license: perl
author:
Scalar::Vec::Util - Utility routines for vec strings.
VERSION
- Version 0.03
+ Version 0.04
SYNOPSIS
use Scalar::Vec::Util qw/vfill vcopy veq/;
BENCHMARKS
The following timings were obtained by running the "samples/bench.pl"
- script with perl 5.8.8 on a Core 2 Duo 2.66GHz machine. The "_pp"
- entries are the pure Perl versions, while "_bv" are Bit::Vector
- versions.
+ script. The "_pp" entries are the pure Perl versions, while "_bv" are
+ Bit::Vector versions.
- Filling bits at a given position :
+ 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 :
+ 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 :
+ 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 :
+ 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.
=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);
=head1 BENCHMARKS
-The following timings were obtained by running the C<samples/bench.pl> 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<Bit::Vector> versions.
+The following timings were obtained by running the C<samples/bench.pl> script. The C<_pp> entries are the pure Perl versions, while C<_bv> are L<Bit::Vector> 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
use strict;
use warnings;
+use Config qw/%Config/;
+
use Test::More tests => 4;
-BEGIN { @INC = grep !/arch$/, @INC }
+BEGIN {
+ my $re = join '|',
+ grep defined && length,
+ @Config{qw/myarchname archname/}, 'arch';
+ @INC = grep !/(?:$re)$/, @INC
+}
use Scalar::Vec::Util qw/vfill vcopy veq SVU_PP/;
is(SVU_PP, 1, 'using pure perl subroutines');