Cache Notes: Difference between revisions

Revision as of 18:26, 13 July 2010

Here are some things we can investigate to gain more information about the current state of the cache:

Determine what the cache's average hit rate is.
See how performance varies by increasing the cache size.
Look into whether YouTube files are blowing out the cache.
Run a Test Pilot or a smaller experiment to gather user cache data
- In order to gather info on the previous bullet points

Here are some ideas for improving the cache that need to be investigated:

Consider other eviction options
- Prioritize by file type, giving css and js higher priority
- Evict based on frecency, not just recency (frequency + recency)
- Use Adaptive Replacement Cache algorithm: http://en.wikipedia.org/wiki/Adaptive_replacement_cache

Here are some links with other documentation on the cache.

Here is a list of bugs filed on the cache. Many are resolved.

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+== ToDo List ==
+Here are some things we can investigate to gain more information about the current state of the cache:
+*Determine what the cache's average hit rate is.
+*See how performance varies by increasing the cache size.
+*Look into whether YouTube files are blowing out the cache.
+*Run a Test Pilot or a smaller experiment to gather user cache data
+**In order to gather info on the previous bullet points
+Here are some ideas for improving the cache that need to be investigated:
+*Consider other eviction options
+**Prioritize by file type, giving css and js higher priority
+**Evict based on frecency, not just recency (frequency + recency)
+**Use Adaptive Replacement Cache algorithm: http://en.wikipedia.org/wiki/Adaptive_replacement_cache
+*Keep dimensions of evicted img files, so layout can still render
 == List of Other Cache Resources ==
 Here are some links with other documentation on the cache.