=head1 SYNOPSIS
- ./bench.pl
+ ./bench.pl [OPTIONS]... BENCHES
-=head1 OPTIONS
+=head1 BENCHES
+
+Specify the set of benches to run. I<bench-name> should be one of:
=over 4
+=item I<fusion>
+
+Test F<lalr1.cc> with three stacks against F<lalr1-fusion.cc> which
+uses a single one.
+
+=item I<push>
+
+Test the push parser vs. the pull interface. Use the C parser.
+
+=item I<variant>
+
+Test the use of variants instead of union in the C++ parser.
+
+=back
+
+=head1 OPTIONS
+
=item B<-c>, B<--cflags>=I<flags>
-Flags to pass to the C or C++ compiler.
+Flags to pass to the C or C++ compiler. Defaults to -O2.
+
+=item B<-h>, B<--help>
+
+Display this message and exit succesfully. The more verbose, the more
+details.
=item B<-i>, B<--iterations>=I<integer>
Say how many times a single test of the bench must be run. If
negative, specify the minimum number of CPU seconds to run. Defaults
-to -3.
+to -1.
+
+=item B<-q>, B<--quiet>
+
+Decrease the verbosity level (defaults to 1).
=item B<-v>, B<--verbose>
-Raise the verbosity level. Currently only affects B<--help>.
+Raise the verbosity level (defaults to 1).
=back
=cut
+use strict;
use IO::File;
##################################################################
=over 4
+=item C<@bench>
+
+The list of benches to run.
+
=item C<$bison>
The Bison program to use to compile the grammar.
my $bison = $ENV{'BISON'} || '@abs_top_builddir@/tests/bison';
my $cc = $ENV{'CC'} || 'gcc';
my $cxx = $ENV{'CXX'} || 'g++';
-my $cflags = '';
-my $iterations = -3;
-my $verbose = 0;
+my $cflags = '-O2';
+my $iterations = -1;
+my $verbose = 1;
=head1 FUNCTIONS
if $level <= $verbose;
}
+
+######################################################################
+
=item C<directives($bench, @directive)>
Format the list of directives for Bison for bench named C<$bench>.
return $res;
}
-=item C<triangular_grammar ($base, $max, @directive)>
+######################################################################
+
+=item C<generate_grammar_triangular ($base, $max, @directive)>
Create a large triangular grammar which looks like :
source of input.
=cut
-sub triangular_grammar ($$$)
+sub generate_grammar_triangular ($$@)
{
my ($base, $max, @directive) = @_;
my $directives = directives ($base, @directive);
}
##################################################################
-=item C<calc_grammar ($base, $max, @directive)>
+
+=item C<generate_grammar_calc ($base, $max, @directive)>
Generate a Bison file F<$base.y> for a calculator parser in C. Pass
the additional Bison C<@directive>. C<$max> is ignored, but left to
=cut
-sub calc_grammar ($$$)
+sub generate_grammar_calc ($$@)
{
my ($base, $max, @directive) = @_;
my $directives = directives ($base, @directive);
##################################################################
-=item C<variant_grammar ($base, $max, @directive)>
+=item C<generate_grammar_variant ($base, $max, @directive)>
Generate a Bison file F<$base.y> that uses, or not, the Boost.Variants
depending on the C<@directive>.
=cut
-sub variant_grammar ($$$)
+sub generate_grammar_variant ($$@)
{
my ($base, $max, @directive) = @_;
my $directives = directives ($base, @directive);
// Prototype of the yylex function providing subsequent tokens.
static yy::parser::token_type yylex(yy::parser::semantic_type* yylval);
-#define STAGE_MAX ($max * 10)
+#define STAGE_MAX ($max * 10) // max = $max
#define USE_VARIANTS $variant
#if USE_VARIANTS
# define IF_VARIANTS(True, False) True
return yy::parser::token::END_OF_FILE;
else if (stage % 2)
{
- IF_VARIANTS(*yylval, yylval->ival) = stage;
+ IF_VARIANTS(yylval->build<int>(), yylval->ival) = stage;
return yy::parser::token::NUMBER;
}
else
{
- IF_VARIANTS(*yylval =, yylval->sval = new) std::string("A string.");
+ IF_VARIANTS(yylval->build<std::string>() =, yylval->sval = new) std::string("A string.");
return yy::parser::token::TEXT;
}
abort();
##################################################################
+=item C<generate_grammar ($name, $base, @directive)>
+
+Generate F<$base.y> by calling C<&generate_grammar_$name>.
+
+=cut
+
+sub generate_grammar ($$@)
+{
+ my ($name, $base, @directive) = @_;
+ verbose 2, "Generating $base.y\n";
+ my %generator =
+ (
+ "calc" => \&generate_grammar_calc,
+ "triangular" => \&generate_grammar_triangular,
+ "variant" => \&generate_grammar_variant,
+ );
+ &{$generator{$name}}($base, 200, @directive);
+}
+
+##################################################################
+
+=item C<run ($command)>
+
+Run, possibly verbosely, the shell C<$command>.
+
+=cut
+
+sub run ($)
+{
+ my ($command) = @_;
+ verbose 2, "$command\n";
+ system ("$command") == 0
+ or die "$command failed";
+}
+
+##################################################################
+
=item C<compile ($base)>
Compile C<$base.y> to an executable C, Using the C or C++ compiler
my $compiler = $language eq 'C++' ? $cxx : $cc;
- system ("$bison $base.y -o $base.c") == 0
- or die;
- system ("$compiler -o $base $cflags $base.c") == 0
- or die;
+ run "$bison $base.y -o $base.c";
+ run "$compiler -o $base $cflags $base.c";
}
+######################################################################
+
=item C<bench_grammar ($gram, %bench)>
Generate benches for C<$gram>. C<$gram> should be C<calc> or
my %size;
while (my ($name, $directives) = each %test)
{
- verbose 1, "Generating $name\n";
- # Call the Bison input file generator.
- my $generator = "$gram" . "_grammar";
- &$generator ($name, 200, @$directives);
+ generate_grammar ($gram, $name, @$directives);
# Compile the executable.
compile ($name);
$bench{$name} = "system ('./$name');";
# shows only wallclock and the two children times. 'auto' (the
# default) will act as 'all' unless the children times are both
# zero, in which case it acts as 'noc'. 'none' prevents output.
- verbose 1, "Running the benches for $gram\n";
+ verbose 2, "Running the benches for $gram\n";
my $res = timethese ($iterations, \%bench, 'nop');
# Output the speed result.
cmpthese ($res, 'nop');
# Display the sizes.
- print "Sizes:\n";
+ print "Sizes (decreasing):\n";
my $width = 10;
for my $bench (keys %size)
{
$width = length $bench
if $width < length $bench;
}
- for my $bench (keys %size)
+ # Benches sorted by decreasing size.
+ my @benches_per_size = sort {$size{$b} <=> $size{$a}} keys %size;
+ for my $bench (@benches_per_size)
{
- printf "%${width}s: %5dkB\n", $bench, int ($size{$bench} / 1024);
+ printf "%${width}s: %5.2fkB\n", $bench, $size{$bench} / 1024;
}
}
+######################################################################
=item C<bench_push_parser ()>
);
}
+######################################################################
+
=item C<bench_variant_parser ()>
Bench the C++ lalr1.cc parser using Boost.Variants or %union.
bench_grammar
('variant',
(
- "union" => [],
- "variant" => ['%variant'],
- "union-debug" => ['%debug'],
- "variant-debug" => ['%debug', '%variant'],
+ "f-union" => ['%skeleton "lalr1-fusion.cc"'],
+ "f-uni-deb" => ['%skeleton "lalr1-fusion.cc"', '%debug'],
+ "f-var" => ['%skeleton "lalr1-fusion.cc"', '%variant'],
+ "f-var-deb" => ['%skeleton "lalr1-fusion.cc"', '%debug', '%variant'],
+ "f-var-dtr" => ['%skeleton "lalr1-fusion.cc"', '%variant', "%code {\n#define VARIANT_DESTROY\n}"],
+ "f-var-deb-dtr" => ['%skeleton "lalr1-fusion.cc"', '%debug', '%variant', "%code {\n#define VARIANT_DESTROY\n}"],
)
);
}
+######################################################################
+
=item C<bench_fusion_parser ()>
Bench the C++ lalr1.cc parser using Boost.Variants or %union.
-output => \*STDOUT });
}
+######################################################################
+
sub getopt ()
{
use Getopt::Long;
- %option = ("h|help" => sub { help ($verbose) },
- "v|verbose" => sub { ++$verbose },
- "c|cflags=s" => \$cflags,
- "i|iterations=i" => \$iterations);
+ my %option = (
+ "c|cflags=s" => \$cflags,
+ "h|help" => sub { help ($verbose) },
+ "i|iterations=i" => \$iterations,
+ "q|quiet" => sub { --$verbose },
+ "v|verbose" => sub { ++$verbose },
+ );
Getopt::Long::Configure ("bundling", "pass_through");
GetOptions (%option)
or exit 1;
verbose 1, "Using cc=$cc.\n";
verbose 1, "Using cxx=$cxx.\n";
verbose 1, "Using cflags=$cflags.\n";
-# bench_push_parser();
-# bench_variant_parser();
-bench_fusion_parser();
+
+for my $b (@ARGV)
+{
+ verbose 1, "Running benchmark $b.\n";
+ bench_fusion_parser() if $b eq "fusion";
+ bench_push_parser() if $b eq "push";
+ bench_variant_parser() if $b eq "variant";
+}
### Setup "GNU" style for perl-mode and cperl-mode.
## Local Variables:
projects / bison.git / blobdiff