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[ThePlatform] Intel Shows off 3DXpoint Memory Performance

post #1 of 34
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Quote:
 Memory chip partners Intel and Micron Technology shook up the flash and main memory markets back in July with the announcement of 3D XPoint memory, something that can be used as both a bit-addressable device like DRAM and a block device like flash.

The two companies talked in generalities about how this memory might perform, saying that 3D XPoint will have about 1,000 times the performance of NAND flash, 1,000 times the endurance of NAND flash, and about 10 times the density of DRAM. The companies have also suggested that 3D XPoint memory, which will carry the Optane brand at Intel and which will be available in both main memory DIMM and SSD form factors, will cost somewhere between that of flash and DRAM, too. This gives Optane many attractive attributes both technically and economically to become a popular system component, and we fully expect that it will be just that.


Keeping the ever-increasing number of cores on a processor fed is a big challenge, and Krzanich said that the addition of Optane 3D XPoint memory to systems would go a long way towards putting the balance of I/O, compute, and storage back in alignment to allow companies to unleash the performance in the processors. To show off the performance of the future Optane SSDs, Krzanich took a standard 1U server – it looked like on of Oracle’s X5-2 machines, a two-socket “Haswell” Xeon E5 v3 machine – and ran two Oracle benchmark tests using Oracle’s clone of Red Hat’s Enterprise Linux.

The Oracle server was running two different Oracle application stacks – Krzanich did not identify them – and was partitioned to run the tests using an Intel P3700 NAND flash SSD on one side and the prototype Optane SSD on the other. The Oracle machine, by the way, has NVM Express links for SSDs, which is a way that the processor and the flash can be linked to each other with a thinner driver stack that gets unnecessary SAS and SATA controller code out of the stack and substantially boosts throughput and lowers latencies for non-volatile storage of all kinds – in this case, both NAND flash and 3D XPoint.
 

Intel Software Test (QD=1)

 

Oracle Software Test (QD=1)

 

 

“This is a huge performance improvement,” Krzanich said. “I think all of us, for any kind of I/O operations, that could see a 5X to 8X improvement in speed – that’s what we have been looking for. It is an improvement in both performance and latency. But there is really more to this technology. Intel Optane SSDs provide about 200X less variability, and that is an additional benefit that you can count on for your datacenter.”


 

“We have been real careful to not show this with slides, but with working demos, because I want people to get excited and realize that this is coming,” he said. “This isn’t five years from now, this isn’t two years from now. This is next year, and this is going to transform how we think about data and memory and storage.”

Now, of course, SSDs are important, but in the long run, Intel also wants to have Optane 3D XPoint memory slot into the same sockets as DDR4 main memory, and Krzanich brought a mechanical model of an Optane DIMM to show off. This truly marks the return of Intel to the memory market, something it walked away from the main memory business in 1985, but given the tight coupling of processing and memory technologies, we have always said that it was inevitable that Intel would get back into the memory business. (If you count various cache memories, Intel never left the business, of course.)

Krzanich said that Intel will have working Optane DIMMs ready later this year for early testers, and will combine the performance of DRAM with the capacity and cost of flash. What this means is that a mix of DDR4 and Optane DIMMs in a two-socket server with a total of 6 TB of addressable memory, “virtually eliminating paging between memory and storage, taking performance truly to a whole new level.” Krzanich added that data encryption in the DIMM, so that data at rest on the DIMM – it will take us all a while to get used to that – is secured.

 

 


Edited by Kinaesthetic - 10/28/15 at 3:15pm
post #2 of 34
I assume next year means enterprise products? I am excited for this! If these technologies can be ready for the Skylake-E consumer platform it could be the genuine overall system performance boost we have all been waiting for.
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post #3 of 34
Slides: 1000x faster than NAND!
Benchmarks: 4-8x faster than NAND.
Okay then.

It's great to finally see some QD1 performance improvements, though.
post #4 of 34
Want
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post #5 of 34
Really interested in seeing what they will do with ram? DDr4X? Get some crazy latencies like back in the days of ddr ram. Very interesting times ahead, what will they come out with next.. redface.gif
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post #6 of 34
Thread Starter 
Quote:
Originally Posted by Ultracarpet View Post

Want

 

I'm 99.99% sure that your wallet does not want it. At least right now.

post #7 of 34
Quote:
Originally Posted by Kinaesthetic View Post

I'm 99.99% sure that your wallet does not want it. At least right now.

lol yup.
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post #8 of 34
Quote:
Originally Posted by zalbard View Post

Slides: 1000x faster than NAND!
Benchmarks: 4-8x faster than NAND.
Okay then.

It's great to finally see some QD1 performance improvements, though.

Notice how they are still not giving any speed benchmarks? Only latency and IOPS, both very important but neither directly addressing the 1000x faster claim. wink.gif

Where did you see improved QD1 performance? Simply inferred from the lower latency and improved IOPS?
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post #9 of 34
Working demo but no demonstration. Instead we get dials on blue background, I'm in love (with that blue) wubsmiley.gif
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post #10 of 34
Thread Starter 
Quote:
Originally Posted by Asmodian View Post


Notice how they are still not giving any speed benchmarks? Only latency and IOPS, both very important but neither directly addressing the 1000x faster claim. wink.gif

Where did you see improved QD1 performance? Simply inferred from the lower latency and improved IOPS?

 

I wrote QD1 in those, because those IOPS counts are about the right IOPS for QD1 for the average NVMe SSD. Although it isn't completely specified in the article. More or less it was inferred from the data given. It could technically be QD2/QD4 (if writes) as a possibility. Either way, the IOPS increase are quite incredible for low queue depths. Which is where a lot of reading/writing is going to be done at.

 

Either way, there most likely is a case where it is 1000x faster. Otherwise, they wouldn't make that claim, as it would be falsely advertising their product. Which has a lot more than legal ramifications (stock market would eat them alive for lying).

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