Mixed Random Read/Write Performance

For full details of how we conduct our Iometer tests, please refer to this article.

Iometer - Mixed 4KB Random Read/Write

The BX100 and SM2246EN appears to do very well under mixed random workloads as it's nearlty the fastest drive we have tested, while still providing high power efficiency.

Iometer - Mixed 4KB Random Read/Write (Power)

Crucial BX100 120GB

The reason lies in high, consistent performance as the BX100 performs about the same at all read/write distributions excluding the higher capacity models that scale lightly as the portion of writes is increased.

Mixed Sequential Read/Write Performance

Iometer - Mixed 128KB Sequential Read/Write

Mixed sequential performance is similarly good and there isn't even a big drop in performance at the smaller capacities. As we've already seen, power efficiency is very high too.

Iometer - Mixed 128KB Sequential Read/Write (Power)

Crucial BX100 120GB

The BX100 does have a similar bathtub curve as others, but the good news is that the performance doesn't drop too much with mixed workload and the performance at 80/20 and 20/80 distributions is high. 

Sequential Performance ATTO & AS-SSD
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  • Kristian Vättö - Saturday, April 11, 2015 - link

    We've run some basic tests, but nothing too in-depth for the review. Testing an internal drive is a bit more complicated, but hopefully we'll be able to follow up with more thorough testing once we get the initial review out.
  • repoman27 - Saturday, April 11, 2015 - link

    Especially when it's not just internal but full on embedded. We may need to wait for an iFixit or Chipworks teardown to get a better picture of how this is implemented.
  • zodiacfml - Saturday, April 11, 2015 - link

    I'd take the Samsung with longer warranty and fat pixels... i mean, NAND. The 250GB version has more DRAM compared to the BX100 if that is any useful.

    Random read/write is what differentiates these great products.
  • zodiacfml - Saturday, April 11, 2015 - link

    Speaking of random performance, isn't the random read results swapped with the random write chart?
  • digiguy - Friday, April 10, 2015 - link

    Agree with Christian, the limitations of SATA 6GB hardly justify an SSD like the 850 pro or the Extreme pro (which I have), especially with PCIe virtually here (tough still rare in laptops). Something like this SSD (or the MX100 which I also have is perfectly adequate even for enthusiasts). I even wonder how many years the SATA interface will survive... I suspect that in 10 years SATA SSDs might well be a thing of the past... (especially in the 2.5 inches format...).
  • CaedenV - Friday, April 10, 2015 - link

    I think it depends on the use. I would imagine that SSDs are going to transition to M.2 or embedded options as the primary interface. However, I think that SATA, even SATA3, has a very long life ahead as a traditional HDD interface for bulk storage. My bet is that we will see 1-2 M.2 connectors for system drive SSDs, and continue to see 2-4 SATA connectors with RAID support for HDD installs for a very long time. They simply do not cost much, and they don't take a lot of space, so it will sort of be like how PS/2 ports keep showing up even though practically nobody uses them, or how parallel ports hung on a good 10 years after they were useful.
  • Murloc - Saturday, April 11, 2015 - link

    kb-0133s never die, and so neither does PS/2.
  • lordken - Sunday, April 12, 2015 - link

    I do use PS/2, as long as my old M$ multimedia keyboard is going to live...no reason to buy new usb keyboard only because this one is like 10y old :)
    Also using good old mx518 (which is usb ofc)
  • Jaybus - Thursday, April 16, 2015 - link

    I don't think multiple M.2 connections will be likely. A single M.2 is great for small form factors, but it takes up too much board space.
  • Pissedoffyouth - Friday, April 10, 2015 - link

    Awesoem stuff. I have an mSata m500 and its been flawless, unlike the bad performance I've had with samsung 840's.

    Looks like this is the drive to recommend to people, I might even get myself one of the 250gb as portable drive

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