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 cache fills. This usually happens only with controllers manufactured by JMicron and Toshiba.
We hear a lot about the sequential performance of SSDs and very little about the latency. The read access times add that third dimension that just doesn't pass through in our 2D charts. Read access time is how fast your request takes place. With drives like the Zalman F1, your window opens before your finger has decompressed the left mouse button on a double click.
The Zalman F1 120GB doesn't use a DRAM buffer to write data fast to the flash like the drives with Marvell controllers. Because of that the write latency appears higher on the charts, but writes even out when the buffers are full.