Sequential Read Performance

Our first test of sequential read performance uses short bursts of 128MB, issued as 128kB operations with no queuing. The test averages performance across eight bursts for a total of 1GB of data transferred from a drive containing 16GB of data. Between each burst the drive is given enough idle time to keep the overall duty cycle at 20%.

Burst 128kB Sequential Read (Queue Depth 1)

The burst QD1 sequential read performance of the Intel Optane SSD 900P falls in between the Samsung 960 PRO and 960 EVO. Samsung's fastest outperforms the Optane SSD by about 11%.

Our test of sustained sequential reads uses queue depths from 1 to 32, with the performance and power scores computed as the average of QD1, QD2 and QD4. Each queue depth is tested for up to one minute or 32GB transferred, from a drive containing 64GB of data.

Sustained 128kB Sequential Read

On the longer test of sequential read performance, the Optane SSD holds on to a commanding lead after the flash-based SSDs mostly slow down relative to their burst performance.

Both Optane devices show a jump in performance from QD1 to QD2, after which their performance holds steady. Samsung's 960s show very minor performance increases with queue depth, and at the highest queue depths the Intel SSD 750 comes closest to catching up to the Optane SSD.

Sequential Write Performance

Our test of sequential write burst performance is structured identically to the sequential read burst performance test save for the direction of the data transfer. Each burst writes 128MB as 128kB operations issued at QD1, for a total of 1GB of data written to a drive containing 16GB of data.

Burst 128kB Sequential Write (Queue Depth 1)

Samsung's 960 PRO and EVO drives all outperform the Intel Optane SSD 900P on the burst sequential write test, by up to 16%.

Our test of sustained sequential writes is structured identically to our sustained sequential read test, save for the direction of the data transfers. Queue depths range from 1 to 32 and each queue depth is tested for up to one minute or 32GB, followed by up to one minute of idle time for the drive to cool off and perform garbage collection. The test is confined to a 64GB span of the drive.

Sustained 128kB Sequential Write

On the longer sequential write test, the Optane SSD loses ground to Samsung's three fastest SSDs but everything else slows down even more.

Almost all of the SSDs in this bunch reach their full sequential write speed at QD2, and they are mostly differentiated by their speeds once saturated. A few drives show some unevenness during the later portions of the test, but the Optane SSD has just a minor blip in its favor at the end of the test.

Random Performance Mixed Read/Write Performance
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  • investlite - Monday, November 6, 2017 - link

    I bet you're still pissed we don't have flying cars. OMG, do you go to every new car unveiling and talk about how crappy each new car is because we were supposed to have flying cars by now?
  • Gothmoth - Friday, October 27, 2017 - link

    when you do huge particle simulations you will want the fastest SSD you can get.
  • ddriver - Friday, October 27, 2017 - link

    I've been doing that, for VFX as well as multiphysics simulations for over a decade. It has always been an in-memory thing. It doesn't seem they simulated it, it seems they read baked simulation data, and stored in some insanely inefficient manner at that.

    As I implied, this has got to be a new record in rigged benchmarks. Shame!
  • extide - Friday, October 27, 2017 - link

    Sigh, the Optane drive didn't improve the performance of reading the data into the simulation. The simulation required (significantly?) more RAM than the system had. They put a big swap file on either a 960 PRO or on the Optane drive. It probably doesn't even matter where the simulation data was stored.
  • ddriver - Friday, October 27, 2017 - link

    Well, they should have bought moar ram then. Then maybe they could have kept that CPU busy at 100% and get much better time.

    I mean it is not like hypetane offers terabytes of capacity. Topping at 480 GB - that's entirely doable in RAM. More expressive - sure, but nonetheless a perfectly sensible investment if you are doing such simulations. It will pay for itself, as RAM is tremendously faster, and also doesn't wear, at least nowhere nearly as much as xpoint does.
  • extide - Friday, October 27, 2017 - link

    For that particular case, sure, maybe more ram is the way to go, but there are plenty of cases where the drive is better, like several of the ones I mentioned above. Most of those rely on the non-volatile aspect, which obviously RAM doesn't have.
  • ddriver - Friday, October 27, 2017 - link

    As I said - it has its advantages and uses. I also said I might even buy it.

    And the only reason I call it hypetane is because intel shamelessly lied about it, and continues to cheat in order to make it look good even after it became evident that it is not anywhere nearly as good as they initially claimed, and call me old-fashioned, but I have a problem with that.

    It boggles the mind that people around here have such a problem with me just because I don't have my tongue up intel's rectum...
  • ddriver - Friday, October 27, 2017 - link

    BTW, 1.1 billion particles, presuming the simulation is ran in FP64 mode, with x y and z coordinates for each particle would only require about 24 gigs of ram.

    Which raises the question, did they allocate each of those points on the heap or something?
  • ddriver - Friday, October 27, 2017 - link

    Opsie, silly me, it would take another 24gb for the vector of force for each particle. Now it is a little more plausible that 64gb might not be enough.
  • CaedenV - Sunday, October 29, 2017 - link

    Sure, in a perfect world you buy more RAM. But if you are in a situation where you don't have infinate cash and you can buy more RAM at $7/GB or an Optane SSD for ~$1-2/GB then Optane begins to look a bit more appealing. A 480GB drive running as cache for $600 vs 480GB of DDR4 at $3350.... that would make almost anyone thing twice.

    Or in the case of my work, we have a bunch of clustered servers, and we are maxxed out on ram but not yet ready to do a server upgrade (hoping to get 2 more years out of them), but we need more fast cache for a bunch of different applicaitons. The idea of running those caches on this kind of SSD sounds a lot more appealing than running on traditional SSDs.

    But yes, when we upgrade servers, we will simply have more RAM on board. That is the obvious solution. But when a motherboard can only hold 256GB of RAM and you need more... life is often about compromises, and Optane tech sounds like a good compromise. But what you would use this for in daily life or in a normal computer? Man, that totally beats me! This product is almost too cheap for what it is good for (business class SSDs typically cost more than $1.25/GB still and are far slower than consumer SSDs), and completely useless and overpriced for that they are advertising it for.

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