Use singleton parser

boards/mdx_neboard.py

@@ -237,3 +237,8 b' class Parser:'
 
     def parse(self, text):
         return self.parser.format(text)
+
+
+parser = Parser()
+def get_parser():
+    return parser

boards/models/post/__init__.py

@@ -14,7 +14,7 b' from django.dispatch import receiver'
 
 from boards import settings
 from boards.abstracts.tripcode import Tripcode
-from boards.mdx_neboard import Parser
+from boards.mdx_neboard import get_parser
 from boards.models import PostImage, Attachment
 from boards.models.base import Viewable
 from boards.models.post.export import get_exporter, DIFF_TYPE_JSON
@@ -376,4 +376,4 b' def connect_notifications(instance, **kw'
 
 @receiver(pre_save, sender=Post)
 def preparse_text(instance, **kwargs):
-    instance._text_rendered = Parser().parse(instance.get_raw_text())
+    instance._text_rendered = get_parser().parse(instance.get_raw_text())