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The end of the DAX experiment

The end of the DAX experiment

Posted May 3, 2019 18:55 UTC (Fri) by Cyberax (✭ supporter ✭, #52523)
In reply to: The end of the DAX experiment by luto
Parent article: The end of the DAX experiment

It's an emulator, emulators can be faster than the real hardware. I was hoping for much more from Optane, but for now it appears to be just slightly cheaper than DRAM while being much slower.

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The end of the DAX experiment

Posted May 3, 2019 20:26 UTC (Fri) by luto (subscriber, #39314) [Link]

I think that it’s not an emulator in any respect. It’s not like Optane is somehow the real thing and battery-backed DRAM is pretending. The battery approach was also first.

In some sense, Optane is an emulator. The DIMM protocol was designed to model the way that DRAM works. I assume that Optane goes a bit out of its way to speak the same protocol.


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