Test results iozone KByte/s

The test first builds a file 4 GByte big (sequential, initial write) and afterwards there will be read from this file (sequential, read). One step later there will be the same on a random basis to see the influence of the access time (random reads/writes). You can compare 4 KByte block size with a text file with only few letters in it. MP3s and movie files conist of 256 KByte and even bigger blocks. If one for example copies 10'000 text files with a size of 25 MByte it takes much longer than copying a 25 MByte movie file. This is becauseauf of the access time which has a big influence with small files. Big files on the other hand aren't affected by the block size.

The OCZ Apex 120 GByte does sequential writing more or less quickly. But the results deviation surprises. When you compare the 4 KByte results with the 128 KByte results you can see a factor two. But at least one thing is clear: in our test environment the Apex doesn't reach the claimed 160 MByte/s writing performance.

Sequential reading performance is good and the OCZ Apex scores solid numbers. The only performance decrease in our test environment was when reading 128 KByte blocks.