My SSD (on Windows XP) is working well, however, I get the following strange results from Crystal Mark 2004R3:
236 MB/s for sequential read 59 MB/s for sequential write 168 MB/s for random read 512KB 151 MB/s for random write 512KB 90 MB/s for random read 64KB 89 MB/s for random write 64KB
How it comes that sequential write is much slower than non-sequential? It's only about half as fast as sequential write for my standard HDD. I'm quite sure my partition is properly aligned.
Could anybody post their results? Can anybody explain it?
On my SSD, there's a FS with 4kB per cluster and I'm quite sure it's properly aligned, so each cluster corresponds exactly with one sector (a real 4kB sector, not 512B as Windows thinks). Now I see that according to the wikipedia the page size (i.e., the smallest erasable unit) is "often 4–8 kilobytes". The manufacturer doesn't bother with providing the page size in the datasheet.
At least 1/4 of the disk has never been used, so there should be a lot of free blocks allowing the writes to be fast.
I forgot to say that my drive is Kinston SV100S2/128G.