Progress report on RAM and CPU of OLPC (Re: [OLPC-devel] do we need s/o to make .swf plug-in for olpc browser?)

supat at supat.eu.org supat at supat.eu.org
Fri Jul 28 21:40:21 EDT 2006



On Wed, 26 Jul 2006, John R. wrote:

> On 7/27/06, supat at supat.eu.org <supat at supat.eu.org> wrote:
>
>> It took me very long time to make NXserver to work to test my hypothesis.
>> And now the strange feature is server run gdm while client run kdm :(
>> 
>> BY using this method, anything server can have capability will send to
>> OLPC w/o need huge CPU and RAM.
>
> Cool, but, most flash movies are run from within the browser.
>
> I think you're going to need to have a plugin of some sort, and a web
> proxy to rewrite links.
>
> BTW, is there going to be network accessible, beefy server accessible
> to all clients in all OLPC deployments? We're going to need a web
> proxy, I think. For example, if the browser uses a lot of RAM one way
> to reduce it would be to turn off cacheing of images, or only have a
> real small one and let a nearby web proxy cache everything else. All
> images will be loaded every time, but they wouldn't have to be dragged
> in from the Internet.
>
> I wonder if there's such a thing as a decentralized web cache? If
> nearby laptops are largely browsing the same sites they might be able
> to share their cache stores between them (OLPCA broadcast to other
> OLPCs: do you have a copy of the resource at URL:xyz? OLPCB (awake and
> browsing says) Yes, here it is...)
>
> -- John.

Hi John,

Yes, a decentralized web cache / servers need to be done for small OLPC 
with low RAM and CPU.

I used decentralized terminal server for long time to teach my students 
via e-University.

Problem exist at this moment is network cache may be too low to play huge 
338 MB .swf movie and will crash the network.

Please let me know how to increase network cache.

Some LAN cards long time ago has the same problem and my solution at that 
time is change to 8139too(RTL8139abc). And the problem was solved.
BUT in usb8388 case I cannot do the same way.

Or we need to build new firmware?

regards,
supat



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