[whatwg] Low Memory Event
dennis at efjot.de
Tue Sep 28 01:09:16 PDT 2010
Am 28.09.2010, 01:01 Uhr, schrieb timeless <timeless at gmail.com>:
> tl;dr of my previous post: it's impossible to know how much memory is
> available in the future.
> How much memory you're currently using is something that /could/
> probably be provided in the near future. *However*, there might be a
> concern that this could be abused by attackers trying to figure out
> information about the host environment. Either way, you'll have to
> wait for browsers to finish exposing this to users before it becomes
> exposed to web applications.
if it goes into critical mass (95 %?) to reduce stored things.
> As for canvas sizes... The amount of available ram can easily have
> nothing to do with video graphics surface restrictions. This is a
> distinct requirement (thanks for listing it). I think it's probably
> more reasonable for browsers to provide a hint about this than the
> others. Again there are security concerns, and resource race
> conditons. But if the number is clamped and can somehow float, perhaps
> it's workable. Keep in mind that there could be 5 windows side by side
> each competing to waste e.g. GL contexts on an overly constrained GL
> based system (the embeddings I'm looking at suck like this).
> That leaves the "i want to dump data to cache" case, which is covered
> by "use a timer (even Date()) and figure out if things have slowed too
> much. For this case, you should in theory start by playing with
> localStorage and application-cache.
This gives me an idea. How about if the browser exposed a hint for
This means if the processor is at 80 % usage in the OS task manager, it
"high", it would certainly become unresponsive.
1 % of it, but STILL goes "medium" or even "high" because it uses a lot of
the currently available resources.
At some point there should of course be a limit on how much of the
it CAN use if it idles.
> Automatically tuning is your user's friend. And it doesn't require any
> new apis :)
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