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A friendly tour of process memory on Linux

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213 points 0xkato | 1 comments | 03 Nov 25 23:04 UTC | HN request time: 0s | source
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drbig ◴[03 Nov 25 23:43 UTC] No.45805856[source]▶
Instruction pipelining and this is exactly why I wish we still have the time to go back to "it is exactly as it is", think the 6502 or any architecture that does not pretend/map/table/proxy/ringaway anything.

That, but a hell lot of it with fast interconnect!

... one can always dream.

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1. drbig ◴[04 Nov 25 11:51 UTC] No.45809893[source]▶
The point is that we should acknowledged those "cheats" came with their reasons and that they did improve performance etc. But, they also did come with a cost (Meltdown, Spectre anyone?) and fundamentally introduced _complexities_, which at today's level of manufacturing and end of Moore's law may not be the best tradeoffs.

I'm just expressing the general sentiment of distaste for piling stuff upon stuff and holding it with a duct-tape, without ever stepping back and looking at what we have, or at least should have, learnt and where we are today in the technological stack.