| OCZ Vertex 3 SandForce SF-2281 SSD |  |
| Reviews - Featured Reviews: Storage | |
| Written by Olin Coles | |
| Tuesday, 05 April 2011 | |
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Page 9 of 13
Iometer IOPS PerformanceIometer is an I/O subsystem measurement and characterization tool for single and clustered systems. Iometer does for a computer's I/O subsystem what a dynamometer does for an engine: it measures performance under a controlled load. Iometer was originally developed by the Intel Corporation and formerly known as "Galileo". Intel has discontinued work on Iometer, and has gifted it to the Open Source Development Lab (OSDL). There is currently a new version of Iometer in beta form, which adds several new test dimensions for SSDs. Iometer is both a workload generator (that is, it performs I/O operations in order to stress the system) and a measurement tool (that is, it examines and records the performance of its I/O operations and their impact on the system). It can be configured to emulate the disk or network I/O load of any program or benchmark, or can be used to generate entirely synthetic I/O loads. It can generate and measure loads on single or multiple (networked) systems. To measure random I/O response time as well as total I/O's per second, Iometer is set to use 4KB file size chunks over a 100% random sequential distribution at a queue depth of 32 outstanding I/O's per target. The tests are given a 50% read and 50% write distribution. While this pattern may not match traditional 'server' or 'workstation' profiles, it illustrates a single point of reference relative to our product field. The chart below illustrates combined random read and write IOPS over a 120-second Iometer test phase, where highest I/O total is preferred:
In our Iometer tests, which use 32 outstanding I/O's per target and a random 50/50 read/write distribution, SandForce SSDs clearly outperform the competition when tested which a larger queue depth. The PCI-Express based SandForce-driven RevoDrive SSDs lead the pack, followed by their latest SATA 6Gb/s storage solutions. The OCZ Vertex 3 peaks at 57553, and delivers the fastest IOPS performance we've measured on any SATA-based SSD. In our next section, we test linear read and write bandwidth performance and compare its speed against several other top storage products using EVEREST Disk Benchmark. Benchmark Reviews feels that linear tests are excellent for rating SSDs, however HDDs are put at a disadvantage with these tests whenever capacity is high.
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Comments
Pretty good statement. If i was in their ads department i would take this line and add it somewhere in the product page.
As always Olin, excellent review. with each review you provide all the important information needed to understand how these drives work.
I think is probably time to treat myself with an SSD.
Ive been waiting for these prices to come down a bit. But dam, they are persistent. gonna have to call the EU Trade commission to look up into the scheme.
I think there has to be some type of SSD price fixing going on with these companies just like we saw with the LCDs.
"LG Display, Sharp, and Chunghwa Picture Tubes agreed to plead guilty to criminal charges for participating in a liquid crystal display price-fixing conspiracy and pay $585 million in fines, the U.S. Department of Justice announced Wednesday.
Read more: #news.cnet.com/8301-1001_3-10095219-92.html#ixzz1IfIgIv49
"
Anyway something people need to be aware of is the bigger drives 240GB+ perform very different to 120GB and smaller vertex 3's.
Dont expect to get this performance with a 120GB vertex 3 or 60GB vertex 3. They get much slower with smaller capacity.
That's fine. I found just this sort of benchmark on another site and the results are encouraging. The site shows a number of SATA drives benchmarked both on III and on II.
thanks