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[–] xyzzy 2 points 1 point (+3|-2) ago 

Full disk encryption is possible, but very bad for the performance.

Technically not everything is encrypted, the bootloader which asks for your passphrase and decrypts the filesystem is not.

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[–] Craftkorb 0 points 6 points (+6|-0) ago 

but very bad for the performance.

I call bullshit. I have a Lenovo Thinkpad X201, which has a i5 520M as CPU and thus supports AES extension. A SSD is used as storage. Not the fastest one ever, still: 150MiB/s reading without encryption, ~125MiB/s with full disk encryption. I don't notice a thing whatever I do with it.

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[–] VimTsar 0 points 6 points (+6|-0) ago 

very bad for the performance

Not really. Most modern CPUs have AES support, so performance hit using this cipher on HDDs isn't so bad. And SSDs aren't recommended for encrypted data anyway, since they keep ciphertext blocks which were rewritten and also need marking empty blocks for better performance, which both weakens the encryption.

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[–] e0steven 0 points 4 points (+4|-0) ago 

I don't think that is the case at all and I doubt you've ever actually used it.

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[–] qiezidaifu 0 points 1 point (+1|-0) ago 

Well then state why that's not the case, no need for chirping.

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[–] brojobbro ago 

Full disk encryption is possible, but very bad for the performance.

No it's not. Not even a little. It takes longer for me to type in the password than it does to decrypt it. As for performance of my computer once its decrypted, I can't tell a difference.

[–] [deleted] ago 

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