I’m starting to notice benchmarks concerning the impact of Lion FileVault on portable Macs. I don’t think benchmarks are the right context for this discussion. You either need encryption or you don’t. If the thought of someone, who just stole your laptop, rifling through your files, browser passwords, and other data, doesn’t bother you, move on. Otherwise, use FileVault. I use it and can’t see or feel any appreciable system slowdown on my Fall 2010 MacBook Air. Neither can Ben Brooks or Federrico Viticci. To me this is a complete non-issue. Laptop + Lion = Encryption.
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