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io_uring is faster than mmap

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283 points ghuntley | 2 comments | 04 Sep 25 22:01 UTC | HN request time: 0.481s | source
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modeless ◴[05 Sep 25 03:25 UTC] No.45134728[source]▶
Wait, PCIe bandwidth is higher than memory bandwidth now? That's bonkers, when did that happen? I haven't been keeping up.

Just looked at the i9-14900k and I guess it's true, but only if you add all the PCIe lanes together. I'm sure there are other chips where it's even more true. Crazy!

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1. AnthonyMouse ◴[05 Sep 25 06:06 UTC] No.45135433[source]▶
> Wait, PCIe bandwidth is higher than memory bandwidth now?

Hmm.

Somebody make me a PCIe card with RDIMM slots on it.

replies(1): >>45135538 #
2. thulle ◴[05 Sep 25 06:26 UTC] No.45135538[source]▶
https://www.servethehome.com/inventec-96-dimm-cxl-expansion-...

https://www.servethehome.com/micron-cz120-cxl-memory-module-...