[Someone1234]

That is insane. I'm surprised it can even go that low, I would have expected it to hit an IO bottleneck before then (large object files/linking/source reads, etc).

Even with a fast SSD on my lowly i7, I often wind up sitting at IO or lock contention instead of actual CPU bottlenecks (although it could be argued faster CPU = faster lock release = faster compilation).

[esotericn]

The entire Linux kernel source tree will trivially fit in tmpfs in RAM.

On one of these systems I'm fairly sure you could just whack the entire thing in /tmp and -j64 it, the compile artifacts aren't that big either.

[trunc]

I've done builds in /dev/shm/ on Xeon and Threadripper with only a trivial speed-up. If it can fit in tempfs, make/cc can just load it all into RAM anyway, so I guess you only reduce the build time by the time it takes for the first read. Which would explain why '-j' on a big codebase tends to trigger my OOM killer.

[zaarn]

They used a Samsung Pro NVMe which should be able to hold almost all of the linux kernel sources in it's read cache without that many issues.

[pradn]

NVMes are magic. Just the same improvement that SSDs have over HDDs. Probably the only upgrade worth getting for my home PC at this point.

[charwalker]

Technically, 100%. I'm full SSD right now though which has a seriously noticeable difference from from HDD but for what I do most days NVME isn't justifiable. I see others who can take advantage of the speeds and do so with huge returns.

I do have 2 super SFF HP boxes that only take NVME in the M.2 drive so have one on hand but it isn't installed at the moment.

[Beltiras]

PCI-ex version 4, double the xfer rate. It can handle a massive 16 GB/s. Are there even disks that can handle that speed?

[gameswithgo]

not yet.

[spoonalious]

https://www.aorus.com/AORUS-Gen4-AIC-SSD-8TB

15000MB/sec, available now for $3119 AUD.

[wtallis]

That's just four SSDs mounted on one riser card with a fan. If you're going to count the aggregate bandwidth of an array, then the question's almost meaningless.