I got a new SSD, Crucial BX200, 480 GB. It is plugged into a sata 3 port. I installed Linux Mint 17.3 Cinnamon 64 Bit on the ssd (using full disk encryption)
If I run bonnie++ to do a benchmark, I get something like 90 mb/s writing, 500 in mb/s reading. Using dd if=/dev/zero of=file bs=1M count=10000 gets me something like 110 mb/s.
This is to slow. Sata 3 and the disk should give me something around 500 mb/s.
Also I noticed that if I run dd, my system gets really laggy. I tried everthing I could think of ... using discard and barrier=0 in fstab. I reinstalled without encryption. I made sure that ahci is running. Nothing works.
Interestingly, when I go to Windows 7 and format the drive with NTFS, CrystalDiskMark gives me around 470 mb/s as a result.
So ... bug in Linux? Any ideas? Thx.