Disk Benchmark Data Size
Posted 13 October 2010 - 03:00 PM
Linear Write fills the whole disk space once, so unless it is performed in loop mode, it's nothing critical for a SSD, since it only writes every flash memory block just once. The Buffered Write test however constantly writes the beginning first few sectors of the SSD "surface", so it shall not be used on flash memory based devices at all, unless it's absolutely necessary.
Random Write and Average Write Access tests write random sectors on the SSD "surface", so they are not much harmful, unless of course you use them a lot, or if you use loop mode and let it go "all night long"
We'll add a special warning for the Buffered Write test, specifically about SSD drives, so it would strongly advise against using that particular test on SSD drives.
Posted 13 October 2010 - 03:20 PM
On an SSD the Buffered Write test, although writing to the first sectors at the operating system level, would be spread out across the NAND by the drive's controller. so overall the effect of excessive writes to the SSD would be no greater then the other write tests.
Posted 17 October 2010 - 10:43 AM
2) The data written during write tests were garbage. We've changed that in the latest beta version of AIDA64 Extreme Edition (link below) so that from now on the written data will be absolutely random (non-compressable). We've also added a warning for the Buffered Write test about SSD drives.
After upgrading to this new version, make sure to restart Windows to finalize the upgrade.
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