[webkit-dev] Disk cache

[Carlos Garcia Campos]

El sáb, 01-11-2014 a las 20:43 +0200, Antti Koivisto escribió:
> On Sat, Nov 1, 2014 at 10:13 AM, Carlos Garcia Campos
> <carlosgc at webkit.org> wrote:
>         El vie, 31-10-2014 a las 19:02 +0200, Antti Koivisto escribió:
>         > Hello,
>         >
>         >
>         > I'm planning to add an experimental HTTP cache
>         implementation to
>         > WebKit (https://bugs.webkit.org/show_bug.cgi?id=30322).
>         
>         Great news!
>         
>         >  The main motivations are:
>         >
>         >
>         > - Improving performance by bringing the cache closer. For
>         example we
>         > can serialize WebKit response objects directly instead of
>         converting
>         > to/from platform types.
>         > - Making future innovation around caching easier. Closer
>         coordination
>         > between cache and WebKit opens new optimization
>         possibilities.
>         >
>         >
>         > The cache lives in the network process. Most of the code is
>         > cross-platform. The storage backend uses libdispatch IO
>         though it
>         > wouldn't be hard to add a generic posix one too.
>         
>         Why is it limited to the network process? wouldn't it be
>         possible to use
>         it also in the web process when shared secondary process model
>         is used?
> 
> 
> The cache ties to NetworkResourceLoader which lives in the network
> process. In principle it would be possible to integrate with the web
> process side resource loader too. However I don't want to support
> multiple configurations during development.
>
> 
> It would be good if all WK2 ports would eventually switch to using the
> network process. The current multitude of configurations makes
> networking related code more confusing and less hackable than it needs
> to be.

The GTK+ port supports the network process, but it's only used when
multiple secondary process model is used. Some applications prefer the
single shared secondary process model, and even some of the browser
users change the default process model of epiphany to single web process
because it requires fewer resources. So, we could either integrate the
cache with the web process loader, or use the network process
unconditionally for all process models. I think for many simple
applications a single web process is the most efficient model, though.

> 
> 
> 
>    antti
>  
>         
>         >
>         > The code will be behind NETWORK_CACHE feature flag.
>         >
>         >
>         >
>         >
>         >   antti
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