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Ash HN: What's the new “your data fits in RAM” for a new 8-socket Xeon Scalable?

2 points| freemint | 3 years ago

Intels new Xeon Scalable 4th gen server processors (code name Saphire Rapid) support up to 8 CPUs in one system. These processors can have upto 8 channels per CPU and 2 DiMMs per channel.

Am i understanding it correctly that a single server can have upto 48 Terrabyte of main memory doubling the current maximum on https://yourdatafitsinram.net/ ?

1 comment

rektide|3 years ago

CXL is coming, which will allow attaching ram from beyond the box. That will be exciting.

It won't have 64 channels of ram bandwidth (8cores x 8channels) but it will also be much much more obtainable (once it starts showing up in volume, stops being totally exotic). If you have a couple dozen TB of data you want to be pretty fast, could be a huge win.

There's also switched versions, with multi-host. So multiple hosts might share a ram drive (atm this would be partitioned up, but I've dreamt of clustering fs like HAMMERFS for multiple decades & am not gonna give up the dream yet!).

And perhaps maybe the on-ram filtering might eventually work & be good, so ram could perhaps do push-down filtering on its own, for scanning through tables!