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| by AkG | July 16, 2009 | ||
| IOMETER / IOMeter Stutter Test IOMETERIOMeter is heavily weighted towards the server end of things, and since we here at HWC are more End User centric we will be setting and judging the results of IOMeter a little bit differently than most. To test each drive we ran 5 test runs per HDD (1,4,16,64,128 que depth) each test having 8 parts, each part lasting 10 min w/ an additional 20 second ramp up. The 8 subparts were set to run 100% random, 80% read 20% write; testing 512b, 1k, 2k,4k,8k,16k,32k,64k size chunks of data. When each test is finished IOMeter spits out a report, in that reporst each of the 8 subtests are given a score in I/Os per second. We then take these 8 numbers add them together and divide by 8. This gives us an average score for that particular que depth that is heavily weighted for single user environments. ![]() As it turns out the performance of the Torqx is slightly elevated when compared to the other two in its class but the differences are minor enough that it can be chalked up to margin of error. Will your Torqx perform the same? Yes and no as the luck of the draw cuts both ways. IOMeter Stutter TestIn our usual IOMeter test we are trying to replicate real world use where reads severly outnumber writes. However, to get a good handle on how well a Solid State Disk Drive will handle a worse case scenario (and thus how likely the dreaded stutter issue will happen) we have also run an additional test. This test is made of 1 section at que depth of 1. In this test we ran 100% random. 100%writes of 4k size chunks of information. In the .csv file we then found the Maximum Write Response Time. This in ms is worst example of how long a given operation took to complete. We consider anything higher than 333ms (one third of a second) to be a good indicator that stuttering may happen, with the higher the number the worse the duration of the stutter will most likely be. ![]() Once again, the differences between these three SSD drives are minor and as such the Torqx performs extremely well. | ||
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