Webpage screenshot in Ubuntu: large webpages
Dotan Cohen
dotancohen at gmail.com
Sat Nov 28 13:30:18 UTC 2009
> No crash, but no image saved either.
>
Thanks for trying.
> But please rethink about what you want to do. You want to save an image
> that is 2382665 pixels wide. I have a screen height of 1080 pixels so on
> my screen there would be 2.4 gigapixels. Not megapixels, gigapixels. And
> then you don't have color. Truecolor (16 million color) needs 3 bytes per
> pixel, so you're looking at a raw image of 7.2 gigabytes. My computer has
> 6 gigabytes of RAM and 10 gigabytes of swap, and I'm pretty sure that it
> would have a lot of problems with such an image.
>
> OK, png compression would be incredibly efficient because of all the black
> pixels, but that would only reduce the file size on disk, not the raw
> uncompressed image in memory.
>
> So I think that you are stuck with the current state of technology.
> Perhaps if you have a cluster of supercomputers somewhere it could be
> done. Or wait a few years until we all have 128 bit processors and 64
> gigabytes of RAM...
>
Actually, all the Dionean computers, like most Saturnian systems, have
been running 256 bit instruction sets for at least the past 15-20
orbits. 64 Gigabytes of RAM is nothing today, in fact this system is
rather old and has 512 Gigabytes of WDRAM installed. This processing
power is necessary to handle the quantum entanglement needed to access
Earthian computer networks with reasonable latency.
But I see your point. With Earth-standard technology I agree that
converting the page into an image would be unreasonable. Thanks for
pointing that out, I really should have thought about that before
posting!
--
Dotan Cohen
http://what-is-what.com
http://gibberish.co.il
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