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ECC matters

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Re: ECC matters

#2
“ECC availability matters a lot - exactly because Intel has been instrumental in killing the whole ECC industry with it's horribly bad market segmentation.”

Its.

There, I finally corrected Linus Torvalds in something. :))

Re: ECC matters

#3
I wish this was more of a cohesive argument. He says he thinks it’s important and points to row-hammer problems but doesn’t explain why. Probably because the audience it was written for already knows the arguments of why, but this is not the best argument.

If in doubt, get ECC. Do your own research on how it works and why. This post won’t explain it, just will blame Intel (probably rightfully so).

Re: ECC matters

#4
post #2

“ECC availability matters a lot - exactly because Intel has been instrumental in killing the whole ECC industry with it's horribly bad market segmentation.” Its. There, I finally corrected Linus Torvalds in something. :))

Yeah I'm always annoyed with this kind of mistake. Especially as non-native speakers should know better than the native ones (which usually don't give a f.).

Now the point about internally doing ECC is an interesting one, could be a way out of this mess. And apparently ECC is more available in AMD land

Re: ECC matters

#5

I wish this was more of a cohesive argument. He says he thinks it’s important and points to row-hammer problems but doesn’t explain why. Probably because the audience it was written for already knows the arguments of why, but this is not the best argument. If in doubt, get ECC. Do your own research on how it works and why. This post won’t explain it, just will blame Intel (probably rightfully so).

He does explain it:

> We have decades of odd random kernel oopses that could never be explained and were likely due to bad memory. And if it causes a kernel oops, I can guarantee that there are several orders of magnitude more cases where it just caused a bit-flip that just never ended up being so critical.

It might be false, but I think it's a reasonable assumption.

Re: ECC matters

#6
post #2

“ECC availability matters a lot - exactly because Intel has been instrumental in killing the whole ECC industry with it's horribly bad market segmentation.” Its. There, I finally corrected Linus Torvalds in something. :))

Yeah I'm always annoyed with this kind of mistake. Especially as non-native speakers should know better than the native ones (which usually don't give a f.). Now the point about internally doing ECC is an interesting one, could be a way out of this mess. And apparently ECC is more available in AMD land

I think it's available for customer SKUs on AMD and not just for servers like in 'Xeon-land'... How I've wanted an ECC-ready NUC...

Re: ECC matters

#7
post #2

“ECC availability matters a lot - exactly because Intel has been instrumental in killing the whole ECC industry with it's horribly bad market segmentation.” Its. There, I finally corrected Linus Torvalds in something. :))

Yeah I'm always annoyed with this kind of mistake. Especially as non-native speakers should know better than the native ones (which usually don't give a f.). Now the point about internally doing ECC is an interesting one, could be a way out of this mess. And apparently ECC is more available in AMD land

As a non native speaker, my phone has both the Italian and English dictionary, when I write its it always auto corrects to it's as soon as I hit space and sometimes it gets unnoticed.

Re: ECC matters

#8
post #2

“ECC availability matters a lot - exactly because Intel has been instrumental in killing the whole ECC industry with it's horribly bad market segmentation.” Its. There, I finally corrected Linus Torvalds in something. :))

Yeah I'm always annoyed with this kind of mistake. Especially as non-native speakers should know better than the native ones (which usually don't give a f.). Now the point about internally doing ECC is an interesting one, could be a way out of this mess. And apparently ECC is more available in AMD land

>> But is ECC more available in AMD land?

Yes it is. The problem is they dont really advertise it. I'm not certain but it might even be standard on AMD chips, but if they dont say so and board makers are also unclear, who knows...

Re: ECC matters

#9
I used to be pretty skeptical of ECC for consumer-grade hardware, mainly because I felt that I'd always prefer cheaper/more RAM over ECC RAM even if it meant that I'd get a couple of crash every year due to rogue bitflips. For servers it's a different story, but for a desktop I'm fine dealing with some instability for better performance.

But these days with the RAM density being so high and bitflipping attacks being more than a theoretical threat it seems like there's really no good reason not to switch to ECC everywhere.

Re: ECC matters

#10
I bought ECC RAM for my laptop and it definitely was about 4x the price. It's valuable to me for a few reasons -- peace of mind being a big one.

Bit flips happen and are real. I really wish ECC was plentiful and not brutally expensive!

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