I have been working on SSD (solid state disk) for several months..Problems and Questions hit my head unexpectedly..Coz i am a virgin in ssd...
Especially these days I was testing the write-read speed of ssd, which I was always caring....
however result turned out not good as I expected, or even worse
Three kinds of read-write were implemented in my test
read and write directly from and into ssd, with openning ssd as a whole device.
in windows: _open("\\:g", ***)..
It can be very tricky and hairy that you'd write a data with size of folds of 512, at
the disk position of folds of 512bytes...
So, If you wanto write just a byte or 4 bytes, you'v to write at least a whole sector one time.
Read and write data from and into files located in SSD...
Read and Write data from and into files in mechanical Disk
I compared the pratices below...I found ssd sucks...the ssd performs worse than mechanical disk...
so i am wondering where i can get the potential performance of ssd, since ssd is said to a substitute for mechanical disk in the future..
Nevertheless, I test ssd with a pro-hard-disk tools..ssd is like twice speedier than mechanical disk.
So, why?
