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[address_formatting] caching parsed templates from pystache yields about a 2.5x speedup per call, should shave off several hours of CPU time for large training sets

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Al
2016-10-11 15:36:49 -04:00
parent 2314acef1b
commit 2663b81670
1 changed files with 12 additions and 3 deletions
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15
scripts/geodata/address_formatting/formatter.py
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@@ -197,6 +197,7 @@ class AddressFormatter(object):
self.setup_place_only_templates()
self.template_cache = {}
self.parsed_cache = {}
def clone_repo(self):
subprocess.check_call(['rm', '-rf', self.formatter_repo_path])
@@ -841,16 +842,24 @@ class AddressFormatter(object):
template_text = self.revised_template(template_text, components, country, language=language)
if template_text is None:
return None
if tag_components:
template_text = self.tag_template_separators(template_text)
if template_text in self.parsed_cache:
template = self.parsed_cache[template_text]
else:
template = pystache.parse(template_text)
self.parsed_cache[template_text] = template
if replace_aliases:
self.aliases.replace(components)
if tag_components:
template_text = self.tag_template_separators(template_text)
components = {k: self.tagged_tokens(v, k) for k, v in six.iteritems(components)}
text = self.render_template(template_text, components, tagged=tag_components)
text = self.render_template(template, components, tagged=tag_components)
text = self.remove_repeat_template_separators(text)
text = self.post_replacements(template, text)
return text