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tjoff | 5 months ago

Webapps limited by 4GiB memory?

Sounds about right. Guess 512 GiB menory is the minimum to read email nowadays.

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jjcm|5 months ago

I know you're in this for the satire, but it's less about the webapps needing the memory and more about the content - that's why I mentioned video editing webapps.

For video editing, 4GiB of completely uncompressed 1080p video in memory is only 86 frames, or about 3-4 seconds of video. You can certainly optimize this, and it's rare to handle fully uncompressed video, but there are situations where you do need to buffer this into memory. It's why most modern video editing machines are sold with 64-128GB of memory.

In the case of Figma, we have files with over a million layers. If each layer takes 4kb of memory, we're suddenly at the limit even if the webapp is infinitely optimal.

gertop|5 months ago

> 4GiB of completely uncompressed 1080p video in memory is only 86 frames

How is that data stored?

Because (2^32)÷(1920×1080×4) = 518 which is still low but not 86 so I'm curious what I'm missing?

flykespice|5 months ago

I'm strange to webdev, but can't you swap the remaining uncompressed frames that don't fit into memory to disk?

poly2it|5 months ago

It doesn't actually allocate 4 GiB. Memory can be mapped without being physically occupied.

IshKebab|5 months ago

No, web apps can actually use 4GB of memory (now 16GB apparently).

miniBill|5 months ago

In fairness, this is talking about Figma, not an email client

hsbauauvhabzb|5 months ago

Finally a web browser capable of loading slack