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  • drbig(3)

A friendly tour of process memory on Linux

(www.0xkato.xyz)
185 points 0xkato | 18 comments | 03 Nov 25 23:04 UTC | HN request time: 1.032s | source | bottom
1. sleepytimetea ◴[03 Nov 25 23:34 UTC] No.45805780[source]▶
Website blocked as a threat/unsafe domain.
replies(5): >>45805803 #>>45805853 #>>45806417 #>>45809085 #>>45810730 #
2. drbig ◴[03 Nov 25 23:37 UTC] No.45805803[source]▶
False alarm.
3. 0xkato ◴[03 Nov 25 23:43 UTC] No.45805853[source]▶
lol
4. 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.

replies(4): >>45806429 #>>45806633 #>>45806856 #>>45809893 #
5. offmycloud ◴[04 Nov 25 01:02 UTC] No.45806417[source]▶
What browser blocked it?
replies(1): >>45806948 #
6. taeric ◴[04 Nov 25 01:03 UTC] No.45806429[source]▶
I'm curious how this dream is superior to where we are? Yes, things are more complex. But it isn't like this complexity didn't buy us anything. Quite the contrary.
replies(1): >>45806570 #
7. harry8 ◴[04 Nov 25 01:30 UTC] No.45806570{3}[source]▶
> ...buy us anything.

Totally depends on who "us" and isn't. What problem is being solved etc. In the aggregate clearly the trade off has been beneficial to the most people. If what you want to do got traded, well you can still dream.

8. ojbyrne ◴[04 Nov 25 01:40 UTC] No.45806633[source]▶
The article is essentially describing virtual memory (with enhancements) which predates the 6502 by a decade or so.
9. loeg ◴[04 Nov 25 02:24 UTC] No.45806856[source]▶
But why?
10. foobiekr ◴[04 Nov 25 02:45 UTC] No.45806948{3}[source]▶
Umbrella seems to be blocking it, for one.
11. mhavelka77 ◴[04 Nov 25 07:06 UTC] No.45808179[source]▶
"mmap, without the fog"

I don't know if this is just me being paranoid, but every time I see a phrase like this in an article I feel like it's co-written by an LLM and it makes me mad...

replies(1): >>45808662 #
12. puika ◴[04 Nov 25 08:22 UTC] No.45808662[source]▶
The article does feel like Gemini when you ask it to explain you something in layman terms, but co-authored by chatgpt with nonsense like "without the fog".
13. jeroenhd ◴[04 Nov 25 09:42 UTC] No.45809085[source]▶
Sounds like your security software is broken. https://www.virustotal.com/gui/url/9e0c8d513f58a8053284b8145...
14. ramon156 ◴[04 Nov 25 10:26 UTC] No.45809377[source]▶
I love these tiny explainers! Even if I already know what it's about, having a confirmation helps throughout reading.
15. paulf38 ◴[04 Nov 25 11:44 UTC] No.45809853[source]▶
In what way are the error reports "just noise"?
16. 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.

17. icedchai ◴[04 Nov 25 13:22 UTC] No.45810730[source]▶
Are you on your work laptop? Your corporate IT "security theater" department may not recognize .xyz as a valid TLD.