Optane Memory – A bridge between DRAM and storage

Re:Optane Memory – A bridge between DRAM and storage by sliken on Tuesday March 28, 2017 @03:18AM (#13974711)

Dunno, I find 1.2-1.6GB/sec on my samsung s950 all the time. The benchmarks I've seen do not show any noticeable difference between SATA and NVMe. Sure geeks like the idea of a lower head protocol, but truth is the protocol is not the bottlneck.

Seems like Optane is a solution looking for a problem to fix. Normal M2 SATA's do fine: # dd if=/dev/sdb of=/dev/null bs=131072 1953586+1 records in 1953586+1 records out 256060514304 bytes (256 GB, 238 GiB) copied, 159.18 s, 1.6 GB/s

(cold cache on a machine with 16GB ram).

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Re:Optane Memory – A bridge between DRAM and storage by wtallis on Wednesday March 29, 2017 @01:46AM (#13983756)

You're not getting 1.6 GB/s out of a SATA drive that's communicating over a 600MB/s link. I think you may be confused about which products are using SATA vs PCIe.

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Re:Optane Memory – A bridge between DRAM and storage by eyeinthepyramid on Tuesday March 28, 2017 @09:34AM (#13976404)

You're looking at throughput numbers, but Optane appears to be solving a iop / latency problem.

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