Dell Mini 9 Hardware and Upgrades Discuss Dell Mini 9 Hardware and Upgrades.
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Join Date: Mar 2009
Iometer Benchmarks for Latency/Stutter - 03-19-2009, 04:49 AM
So i've been reading the Anandtech article on the front page, and basically due to the way SSDs work the reason why we get stuttering is because they have to move a bunch of data around before they can do random writes. Using IOmeter you can test the latency of the drive doing random writes, and the bad SSDs take about half a second to write 4KB.
You can download Iometer here for windows and linux, and probably osx too if you compile it yourself.
Anandtech did their benchmarks doing 100% 4KB random writes to 8gigs of sectors and 3 outstanding IOs per target. We should probably scale that down a bit considering the size of our drives.
What I can't figure out though is how to set the number of sectors to be used. The app is kinda confusing since you have to input sectors instead just plain GB. I am playing around with it on my desktop for now, but if someone figures it out please post so we can get a standard set of options and so everyone else can benchmark their drives too.
I think these benchmarks should explain why so many people complain of stuttering on the 4GB STEC and the 64GB Runcore.
Join Date: Jan 2009
Re: Iometer Benchmarks for Latency/Stutter - 03-19-2009, 03:18 PM
Someone needs to set a "standard", so everyone benchmarking will use the same settings so our benchmarks can be compared.
Join Date: Jan 2009
Re: Iometer Benchmarks for Latency/Stutter - 03-20-2009, 01:39 AM
If you read UnaClocker's work on his hard drive activity light mod here, you will know that the Runcore uses a JMicron JM20330 PATA => SATA chip. However, he doesn't state if he knows what the NAND controller is and unfortunately I can't find any photos that show the NAND controller chip on the runcore.
I took the stickers off my stock SSD to have a look and it would appear that the STEC 8GB one has A Samsung 819-822 controller.
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