[webkit-dev] memory consumption

Paul Pedriana ppedriana at gmail.com
Wed Jul 2 13:18:56 PDT 2008

For our uses and a lot of other non-PC uses, memory is more important 
than speed. The memory budget we are targeting is <= 10 MB for code+data 
to display a small blank visual page that executes a 'hello world' type 
JavaScript function. So 8MB is a lot.

I'm wondering if there is a way to control the memory/speed tradeoff. 
The tcmalloc memory allocator makes a similar tradeoff whereby it uses 
more memory to gain speed, whereas a non-PC application would usually 
want to use a more traditional allocator + small block allocator.

> Hi all,
> I'd like to ask you whether the memory consumption of the JS engine is 
> of importance for you or does performance have higher priority? I'm 
> asking this since we are keeping non-PC use of WebKit in mind as well, 
> but we found in the newest version of the RegisterFile that it's memory 
> consumption is quite high by default: ~8megs in a 32bit system and 
> ~16megs in a 64bit system. (Since DefaultCapacity = 2 * 1024 * 1024, and 
> DefaultMaxGlobals = 8 * 1024.) Hitherto (in older revisions), it grew 
> incrementally, as needed.
> Did I miss something?
> Cheers,
> Akos
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