Cache Notes: Difference between revisions

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Revision as of 21:23, 27 July 2010

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→‎List of Other Cache Resources

Byronm

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 *Consider other eviction options
 **Prioritize by file type, giving css and js higher priority
-**Evict based on frecency, not just recency (frequency + recency)
+**Evict based on "frecency", not just recency (frequency + recency)
 **Use Adaptive Replacement Cache algorithm: http://en.wikipedia.org/wiki/Adaptive_replacement_cache
+**We could consider letting servers specify "cache-priority" with resources. This leads to other issues, like fairness.
-*Keep dimensions of evicted img files, so layout can still render
+*Keep dimensions of evicted image files, so layout can still render before the image data arrives across the network
+*Compress cache entries?
+**This could save space and improve I/O time
+*Don't throw away the entire cache when the browser crashes.
+And here are some miscellaneous items:
+*Add more info to about:cache, including hit rates and other info.
 == List of Other Cache Resources ==
 Here are some links with other documentation on the cache.
+*hacks.mozilla article on [http://hacks.mozilla.org/2010/05/revitalizing-caching/ revitalizing caching]
 *http://www.mozilla.org/projects/netlib/presentations/necko1-2002-02-18/slide11.xml
 *https://developer.mozilla.org/en/HTTP_Caching_FAQ
+*My [[http_cache_protocol|notes]] on the HTTP cache protocol.
 Here is a list of bugs filed on the cache. Many are resolved.
-*https://bugzilla.mozilla.org/show_bug.cgi?id=513008
+*(http_cache) Meta-bug: improve HTTP cache {{bug|559729}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=513074
+*Eliminate synchronous reads from cache (make cache reads asynchronous): {{bug|513008}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=549767
+*Remove sync writes from current cache: {{bug|513074}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=548406
+*Write/flush cache metadata off main-thread: {{bug|549767}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=514213
+*xpcshell tests: assertion "mem cache leaking entries" in nsMemoryCacheDevice::Shutdown() causing abort test failed: {{bug|548406}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=512849
+*Replace necko cache with the Google Chrome cache: {{bug|514213}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=443067
+*Implement modern cache: {{bug|512849}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=321361
+*Disk Cache overflow when downloading large files: {{bug|443067}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=193911
+*Cache corruption when viewing sites with several large images (simultaneous hash collision & cache dooming by disk cache size limit): {{bug|321361}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=290032
+* Increase default disk cache size: {{bug|193911}}
-*https://bugzilla.mozilla.org/show_bug.cgi?id=355567
+* Figure out the max nr of entries we should store in the disk cache: {{bug|569709}}
+*Some files are never cached due to hash collisions which are quite common due to weak string hash function: {{bug|290032}}
+* Firefox stores corrupted version of cached JavaScript file (merges two files together): {{bug|355567}}
+* Need to teach necko to deal with channels reading and writing to a cache entry simultaniously: {{bug|446876}}