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cache result of parse_expression to speed up map loading - refs #1167

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This commit is contained in:
Dane Springmeyer 2014-04-28 18:02:14 -07:00
parent ef837eb92f
commit ad10497503
4 changed files with 43 additions and 8 deletions
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29
benchmark/test_to_bool.cpp
View file

@ -26,4 +26,31 @@ public:
}
};
BENCHMARK(test,"string->bool")
class test2 : public benchmark::test_case
{
std::string value_;
public:
test2(mapnik::parameters const& params)
: test_case(params),
value_("1.23456789") {}
bool validate() const
{
double result = 0;
mapnik::util::string2double(value_.data(),value_.data()+value_.size(),result);
if (result != 1.23456789) return false;
result = 0;
mapnik::util::string2double(value_,result);
return (result == 1.23456789);
}
void operator()() const
{
for (std::size_t i=0;i<iterations_;++i) {
double result = 0;
mapnik::util::string2double(value_,result);
//mapnik::util::string2double(value_.data(),value_.data()+value_.size(),result);
}
}
};
//BENCHMARK(test,"string->bool")
BENCHMARK(test2,"string->double")

12
include/mapnik/xml_attribute_cast.hpp
View file

@ -180,7 +180,17 @@ struct do_xml_attribute_cast<mapnik::expression_ptr>
{
static inline boost::optional<mapnik::expression_ptr> xml_attribute_cast_impl(xml_tree const& tree, std::string const& source)
{
return parse_expression(source, tree.expr_grammar);
std::map<std::string,mapnik::expression_ptr>::const_iterator itr = tree.expr_cache_.find(source);
if (itr != tree.expr_cache_.end())
{
return itr->second;
}
else
{
mapnik::expression_ptr expr = parse_expression(source, tree.expr_grammar);
tree.expr_cache_.insert(std::move(std::make_pair(source,expr)));
return expr;
}
}
};

1
include/mapnik/xml_tree.hpp
View file

@ -53,7 +53,6 @@ private:
std::string file_;
transcoder tr_;
public:
mutable std::map<std::string,mapnik::color> color_cache_;
mutable std::map<std::string,mapnik::expression_ptr> expr_cache_;
mapnik::css_color_grammar<std::string::const_iterator> color_grammar;
mapnik::expression_grammar<std::string::const_iterator> expr_grammar;

9
localize.sh
View file

@ -1,13 +1,12 @@
#!/bin/bash
UNAME=$(uname -s)
CURRENT_DIR=$(pwd)
export CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
if [ ${UNAME} = 'Darwin' ]; then
export DYLD_LIBRARY_PATH="${CURRENT_DIR}/src/":${DYLD_LIBRARY_PATH}
export DYLD_LIBRARY_PATH="${CURRENT_DIR}/src/"
else
export LD_LIBRARY_PATH="${CURRENT_DIR}/src/":${DYLD_LIBRARY_PATH}
export LD_LIBRARY_PATH="${CURRENT_DIR}/src/"
fi
export PYTHONPATH="${CURRENT_DIR}/bindings/python/":${PYTHONPATH}
export PYTHONPATH="${CURRENT_DIR}/bindings/python/"
export MAPNIK_FONT_DIRECTORY="${CURRENT_DIR}/fonts/dejavu-fonts-ttf-2.33/ttf/"
export MAPNIK_INPUT_PLUGINS_DIRECTORY="${CURRENT_DIR}/plugins/input/"
export PATH="${CURRENT_DIR}/bin/":${PATH}