Just realised that it would be useful if I supplied you with a real-world example:
http://www.bbc.co.uk/bbcone/watchlive/ This is 'UK Only', restricted based on the requesting IP address. On 18 May 2012 07:00, Nick Hurley <[email protected]> wrote: > ----- Original Message ----- > > 1/ What is the default setting in Firefox for the Cache? Is it RAM > > then Disk. Is this flow described anywhere? > > > > > > One of our cache experts, Nick, has told me that the resources are > > cached in both RAM and disk by default. > > To clarify, both RAM and disk caches are *enabled* by default. As things > stand right now, most resources will be cached in the disk cache, and not > in RAM (IIRC, RAM is reserved for TLS resources served with cache-control > no-store). > > > Nick, Michal, is there a flow described somewhere for the cache that > > Alan could look at? Do you know how plugins like Flash use the > > cache? Is there a difference? > > I don't believe there is any documentation of the flow for the entire > cache, no. I am also not aware of how Flash and other plugins make use of > the cache. > > > 2/ How is garbage collection instigated - the latest Firefox has an > > option suggesting that, by default, there is an automatic garbage > > collection which must use some rules... perhaps about disk space? For > > example: in Google Chrome, the default cache can take up huge amounts > > of disk space growing without some sort of size limit it seems, plus > > you can only change the cache settings on the CLI of Chrome (no > > 'consumer' level configuration in the 'preferences' dialogs). > > > > > > I'll let Nick and Michal comment on garbage collection for regular > > cache objects. We also have a media cache, which the guys on > > dev-media have a better understanding since they wrote it, but I > > don't think it's used for Flash, only for built-in decoders. > > The regular cache is limited to 1GB (or less, depending on free disk > space). Once that limit is reached, space is freed up as needed to store > new entries in an LRU fashion. Memory cache is limited to 32MB, I think? It > uses a size-aware LRU eviction algorithm. There is some configuration for > disk cache size in the regular preferences pane in Firefox. > _______________________________________________ dev-media mailing list [email protected] https://lists.mozilla.org/listinfo/dev-media
