IOMeter – IOps
Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It was originally developed by the Intel Corporation and announced at the Intel Developers Forum (IDF) on February 17, 1998 – since then it got wide spread within the industry.
Meanwhile Intel has discontinued to work on Iometer and it was given to the Open Source Development Lab (OSDL). In November 2001, a project was registered at SourceForge.net and an initial drop was provided. Since the relaunch in February 2003, the project is driven by an international group of individuals who are continuesly improving, porting and extend the product.
We are running new version of IOMeter, but with a similar configuration as compared with prior versions (i.e. compressibility of data, etc), as to maintain consistency across the test data pool.
Light desktop usage sees QD figures between 1 and 4. Heavy / power user loads run at 8 and higher. Most SSD's are not capable of effectively handling anything higher than QD=32, which explains the plateaus.
Regarding why we use this test as opposed to single-tasker tests like 4KB random reads or 4KB random writes, well, computers are just not single taskers. Writes take place at the same time as reads. We call this mixed-mode testing, and while a given SSD comes with side-of-box specs that boast what it can do while being a uni-tasker, the tests above tend to paint a very different picture.
Given that the ADATA SP920 is virtually identical to a Crucial M550, and that the MX100 results here so neatly overlay the SP920, it's a fair assumption that the 512GB model of the MX100 is going to give very similar performance when compared to the M550. To be clear, this likely applies to the 512GB model *only*, as lower capacities have more significant write speed limitations as compared to the M550 line.
Tempted I am on upgrading my
Tempted I am on upgrading my 4 year old c300 256 gig sata 6, to these in raid 0 or 2 evos 500 gig models. I feel these are more about reliability then performance.
2 cheap ssds in raid 0 or upcoming sata express ssds.
Does this site have a mobile
Does this site have a mobile version?
Not currently, no, but that’s
Not currently, no, but that's in the works!
What device are you using? What problems did you have with the readability?
One 840 1TB EVO is the same
One 840 1TB EVO is the same price as two of these right now, and the mx100s are on sale.
how about making a nas with
how about making a nas with these badboys.
Not sure that I see much wow
Not sure that I see much wow factor out of this one. All presented models has more or less the same performance.
Only difference with the newer model is probably the reduced cost (still minimal) which is starting to show for all SSD on the market. And the actual die has reduced in size.
For a budget, the 128GB would be my pick. An additional HDD would support additional greater storage for the same cost. All my HDD has outlast all my flash devices.
As for the controller, ain’t the Marvell the same as the Sandforce? My mother board doesn’t like Sandforce controllers.
Which flash devices failed on
Which flash devices failed on you?
I have a c300 data 6 256 gig about 4 and a half years now still performs as day one.
Sata 6 *
Sata 6 *
The failed flash devices were
The failed flash devices were not SSD. However, though they were primarily USB flash devices, the concept is the same. You could blame the poor components, but consumers often don’t have control over that aspect.
One of the devices were replaced without any cost or questions asked as it was still under it’s warranty. Luckily, before it failed, I had a backup made of its contents. Backing up your data to various media is key.
I also have another USB flash device that is 10 years old. I treat it like a travelling floppy disk. The only one that has shown best compatibility among various systems used and shows little symptoms of wear.
Currently, I have another USB flash device which is starting to show a lot of wear. It’s primary cause is due to extreme data writing at low bytes. I have reduced it’s wear by optimizing the tool(software) when it was targeted a the source.
All this is great. I am not suggesting that the technology is a failure, however, when looking at cost and reliability, I prefer to have each of both worlds. From experience, Disc platters can sustain much greater amount of data wear than Flash. As proof, I still have 20 years old HDD, though now it no longer has a purpose due to it’s fading technology.
Hope that clarifies my comment.
Cheers!
There really is no comparison
There really is no comparison on relative reliability of USB flash drives vs. SATA and up SSDs. USB drives are not rated at anywhere near the longevity / usage.
I JUST bought a 240gb M500
I JUST bought a 240gb M500 for $100 last week. Is is worth sending it back in exchange for an MX100 256gb, or am i better off just keeping my M500?
great review allyn 😀 though
great review allyn 😀 though this line really needs a 1tb option.
according to this, yes you
according to this, yes you should exchange it (tho ssds are all pretty fast, and the real-life performance gains may be negligible, so ymmv)
http://techreport.com/review/26532/crucial-mx100-solid-state-drive-reviewed/7
Hi Allyn,
I just read a
Hi Allyn,
I just read a review on http://www.trustedreviews.com. They said,
“the MX100 is at greater risk of the electricity leaks that can effect transistors when they’re packed in such close quarters”, is this true?