Changes between Version 10 and Version 11 of TracDev/Performance

Timestamp:

Feb 12, 2011, 3:10:11 PM (13 years ago)

Author:

Christian Boos

Comment:

some ideas for improving the http delivery and page render speed

TracDev/Performance

@@ -114 +114 @@
  - some more modules could use paginated results (#6128 - timeline, #6101 - browser) or on-demand display (#515 - changeset view), or... no display at all (#5170)
  - there was once the suspicion that DEBUG logging level could significantly impact performance (get some numbers)
+
+=== "Page speed" improvements ===
+
+Improve static resource delivery:
+ - better use of caching headers:
+   - add `Cache-Control: public`
+   - add `Expires: `''(future)'',  `Cache-Control: max-age` together with URL fingerprinting, #9936
+   - fix `Vary:` header #6367
+   - verify we call `req.check_modified()` as appropriate #4022
+   - reference: http://code.google.com/speed/page-speed/docs/caching.html
+ - request handler shortcut? #9938
+ - htdocs_location => chrome_location #9683
+ - make it possible to use CDNs for jquery (and later jqueryui)
+ - use http://headjs.com/ for loading scripts in parallel?
+
+Optimizing browser rendering by improving the CSS selectors:
+ - avoid ''Rules with a tag selector as the key''
+ - avoid ''Rules with overly qualified selectors''
+ - ''Remove redundant qualifiers''
+ - ''Don't use @import'' (needed anyway for full #9936 support)
+ - reference: http://code.google.com/speed/page-speed/docs/rendering.html