3 ms·
FileVault full disk encryption overhead on Lion
- rdl 15y agoThe difference between machines with AES-NI and without is night and day; I'd basically consider filevault FDE mandatory on any machine with AES-NI unless it's physically secured all the time and really needs disk speed to the exclusion of all else. The other great thing is filevault and timemachine now interoperate fairly well.
- stock_toaster 15y agoI was interested in which CPUs actually support AES-NI, and found[1] a list (intel only): http://ark.intel.com/MySearch.aspx?AESTech=true http://ark.intel.com/MySearch.aspx?AESTech=true [1]: https://secure.wikimedia.org/wikipedia/en/wiki/AES_instruction_set#cite_note-7 https://secure.wikimedia.org/wikipedia/en/wiki/AES_instructi...
- lvh 15y agoDo the i5/i7 chips in the new MBA count?
- rdl 15y agoYes. Anything i7 or i5 that Apple has used has aes-ni in it. The last machines to fail this were the old mbp13 (2010), 2010 Mac mini, and 2010 MBA. Everything currently sold has aes-ni. On the new MBA 13 1.8ghz, I don't even notice the hit.