AIDA64 Random Access Time
Version and / or Patch Used: 1.60
Developer Homepage: http://www.aida64.com
Product Homepage: http://www.aida64.com
AIDA64 offers several different benchmarks for testing and optimizing your system or network. The Random Access test is one of very few if not only that will measure hard drives random access times in hundredths of milliseconds as oppose to tens of milliseconds.
Drives with only one or two tests displayed in the write test mean that they have failed the test and their Maximum and possibly their Average Scores were very high after the cached fills. This usually happens only with controllers manufactured by JMicron and Toshiba.
SSDs are all about access times, this is what makes them feel fast in your system and aids in making your programs and applications start quickly. Traditional spinners take a relatively long time to access data and that length of time nearly doubles by the number of drives with RAID. With SSDs, the initial value is very small so even though the read access time increases when you add more drives the increase is so small you fail to notice it.
The RAID 5 array on the LSI controller makes good use of the 1GB cache when writing small 64kb size data. The Patriot Wildfire RAID 0 array on the Intel PCH still has very low access times, but a little higher than what we've recorded with some of the other drives.