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this post was submitted on 08 Dec 2025
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That study doesn't seem to support the point you're trying to use it to support. First it's talking about machines with error correcting RAM, which most consumer devices don't have. The whole point of error correcting RAM is that it tolerates a single bit flip in a memory cell and can detect a second one and, e.g. trigger a shutdown rather than the computer just doing what the now-incorrect value tells it to (which might be crashing, might be emitting an incorrect result, or might be something benign). Consumer devices don't have this protection (until DDR5, which can fix a single bit flip, but won't detect a second, so it can still trigger misbehaviour). Also, the data in the tables gives figures around 10% for the chance of an individual device experiencing an unrecoverable error per year, which isn't really that often, especially given that most software is buggy enough that you'd be lucky to use it for a year with only a 10% chance of it doing something wrong.
It's a paper from 2009 talking about "commodity servers" with ECC protection. Even back then it was fairly common and relatively cheap to implement though it was more often integrated into the CPU and/or memory controller. Since 2020 with DDR5 it's mandatory to be integrated into the memory as well.
Yes, that's my point. Your claim of "computers have nearly no redundancy" is complete bullshit.
It wasn't originally my claim - I replied to your comment as I was scrolling past because it had a pair of sentences that seemed dodgy, so I clicked the link it cited as a source, and replied when the link didn't support the claim.
Specifically, I'm referring to
This just isn't correct:
Sorry, I wasn't paying attention and missed that. I apologize.
Integrated memory ECC isn't the only check, it's an extra redundancy. The point of that paper was to show how often single bit errors occur within one part of a computer system.
Right, because of redundancies. It takes 2 simultaneous bit flips in different regions of the memory in order to cause a memory error and it's still ~10% chance annually according to the paper I cited.