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rrgokyesterday at 5:56 PM2 repliesview on HN

Sometime I wonder how much overhead all these security features take in terms of performance.

I would really like to see a benchmark with and without security measures.


Replies

Retr0idyesterday at 6:00 PM

It's not really possible to make a direct comparison, given that a big chunk of the features are baked into the silicon, or are architecture-level choices.

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reliumyesterday at 7:40 PM

The ones I remember most affecting performance were zeroing allocated memory and the Spectre/Meltdown fix. Also, the first launch of a new app is slow in order to check the signature. Whole disk encryption is pretty fast today, but probably is a bit slower than unencrypted. The original FileVault using disk images was even slower.

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