What to encrypt to stay safe.

[ment0s]

Hello, I would like encrypt my filesystem with LUKS but I have noticed that encrypting entire system slows system and stress CPU to maximum, I am using 512 gb ocz vector SSD on sata 6gbps and after full encryption system slowed down from ~500MB/s to ~100MB/s. Could some one give me an advice what parts of system I could encrypt to prevent from external view of log files etc ? I am thinking of encrypting entire /var partition and some files like bash history etc but what else might be encrypted to prevent from identifying what activities were done on system? Thanks

[GreenLantern]

Have you considered anything that is AES based if your processor supports AES instructions....if not...why don't you consider a co-processor for the encryption you plan on using...
they are available as express cards or whatever...
hardware acceleration for encryption does really make a difference.. my i3 core does 200MB/s for AES without hardware support...I am also assuming you setup is rather old..