AnandTech Storage Bench - Light

Our Light storage test has relatively more sequential accesses and lower queue depths than The Destroyer or the Heavy test, and it's by far the shortest test overall. It's based largely on applications that aren't highly dependent on storage performance, so this is a test more of application launch times and file load times. This test can be seen as the sum of all the little delays in daily usage, but with the idle times trimmed to 25ms it takes less than half an hour to run. Details of the Light test can be found here. As with the ATSB Heavy test, this test is run with the drive both freshly erased and empty, and after filling the drive with sequential writes.

ATSB - Light (Data Rate)

The Intel Optane SSD 900P doesn't come in first place for overall data rate on the Light test, until the drives are filled and the average data rate of all the flash-based SSDs takes a big hit.

ATSB - Light (Average Latency)ATSB - Light (99th Percentile Latency)

The average and 99th percentile latencies of the Optane SSD on the Light test are on par with the top flash-based SSDs when the test is run on an empty drive. When the drives are filled before the test, the flash-based SSDs slow down enough that the Optane SSD takes first place easily, with an especially wide margin on the 99th percentile latency.

ATSB - Light (Average Read Latency)ATSB - Light (Average Write Latency)

The average read latency of the Optane SSD 900P on the Light test is merely tied for first place, when the test is run on an empty drive. When the drives are filled, the Optane SSD has half the average read latency of anything else. The write latency situation is quite different; whether or not the drives are filled, most of the top flash-based SSDs are able to fit the bursts of writes in their caches and deliver better latency than the uncached writes of the Optane SSD.

ATSB - Light (99th Percentile Read Latency)ATSB - Light (99th Percentile Write Latency)

The 99th percentile read latency of the Optane SSD 900P on the Light test is tied for first place when the test is run on an empty drive, and leads by more than 60% when the drives are filled before the test. The 99th percentile write latency lags behind the top flash-based SSDs a bit, but nowhere near enough to be noticeable: the latency is still an order of magnitude lower than SATA SSDs.

AnandTech Storage Bench - Heavy Random Performance
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  • Nikijs - Monday, October 30, 2017 - link

    pls anand. just kill ddriver acc. he ruins all comment section. he's maybe "smart", but lives in another dimension, where he thinks he is only one who understands something. i bet he never ever achieved something worthy in his life. thats where all hidden anger comes from.
  • daremighty - Tuesday, October 31, 2017 - link

    I don't agree that Anandtech's approach to measure random performance. QD1 random is directly reflect the latency of memory chip (NAND or 3D Xpoint). Between the queue, there should be some idle time and it didn't explain the real random performance of device. Under random workload, the device should handle multiple random requests - it means deeper QD is more natural to explain the random performance of QD. Probably, many device would require deep QD to saturate the random, but I think it is still valid metric. I think in random, random performance with deep (64 or 128?) QD is as much important as low QD (1/2/4?). Again, low QD is just shows the NAND performance, not SSD performance.
  • rep_movsd - Tuesday, October 31, 2017 - link

    Seems like the great ddriver is an expert in all things, and his opinions of "Hypetane" are based on solid fact and "decades" of experience (of bashing intel I guess).
    All the people who buy Intel are idiots and those who praise Intel technology are shills...

    Meanwhile, Optane and similar technologies will eventually replace SSDs and ddriver will still be grumbling about how SLC would have been better if given a chance....

    Get with the times - no one is forcing anyone to buy anything Intel - and if you think anandtech fudges benchmarks, put your money where your mouth is and try doing a fraction of what they do...

    Don't pour cold water on others efforts just because you have some PTSD with Intel for whatever reason...

  • "Bullwinkle J Moose" - Tuesday, October 31, 2017 - link

    "Get with the times"

    Thats a great comment!

    Seems like ddriver might have gotten a timeout several days ago and yet a few of you can't seem to get over him

    Just admit it, you loved his comments and want him back, or else you could get with the times and get over him

    He's gone, but look at the bright side.....
    I'M BACK!
  • rep_movsd - Wednesday, November 1, 2017 - link

    Yes, I love him, like all trolls love other trolls
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  • DocNo - Saturday, November 4, 2017 - link

    Intel's caching software for Optane sucks - super finicky, not easy to integrate with an existing system and most of all requires specific motherboard to work (which I happened to have, but not the right partition layout - I dunno, technical documentation for what they want is pretty nonexistent).

    Luckily I stumbled PrimoCache. Downloaded a trial and had it working with my m2 Optane in 5 minutes. Made a noticeable and rather dramatic difference, even when loading stuff off of my Samsung EVO SSD. For $20 it was worth the frustration of not having to figure out Intel's poorly documented and overly fussy software. And if you don't have an Intel supported board, this lets you use Optane for caching with any board with an m2 slot.

    These Optane drives would be awesome for servers - based on the experience with my desktop I now use PrimoCache on a couple of my servers and even with cheap SSDs the difference is amazing. With larger Optane drives? I should be even better. And at $120 for the server version it's by far the fastest way to add SSD caching to Windows Server. I'm extremely happy with it!
  • weevilone - Sunday, November 5, 2017 - link

    That's interesting.. wish I had known about PrimoCache when I was tinkering with the little Optane stick. Intel's software was a huge mess, and Intel was less than helpful in working through it. When I finally went to remove it and throw in the towel, neither the software nor the UEFI could remove the stuff. I wound up having to reinstall Windows.
  • Kwarkon - Monday, November 6, 2017 - link

    I'm quite curious what exact issues you had, especially with disabling Optane?
  • mattlach - Saturday, December 30, 2017 - link

    Looking at that random 4k write performance, I'm thinking a pair of these would be absolutely fantastic as a mirrored SLOG/ZIL device for my massive ZFS pool. It's very tough to predict through.

    Question is how they would perform on the dual socket Westmere-EP Xeons powering my storage box, with only PCIe Gen2... Probably won't make a huge difference since the write speed peaks out at about 1.7GB/s and 4x PCIe Gen2 tops out at 2GB/s.

    I wouldn't mind a decent boost to sync write speeds, and this 900p seems like its tailor made for the job. No cache, so there is no need for battery/capacitor backup, and very high speed, low latency random writes...

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