This time I want to compare performance of LVM based ext4 filesystem with LUKS encrypted device created on the same LVM volume.
Test system is intel cd2 e8200, 6GB RAM, 4*ST31500341AS (seagate 7200.11, 1.5TB) soft raid5.
First result is notcrypted LVM with ext4 filesystem:
Then same volume but encrypted with 128bit AES:
And last result for LUKS encrypted LVM volume with 256bit AES: