12% CPU Improvement — Transcript
Full transcript
- 0:00If you think you completely understand
- 0:01PCs, no you don't because this simple
- 0:04hack boosts CPU performance crazy style.
- 0:06A method of forcing modern CPUs to
- 0:08essentially predict [music] the next
- 0:10action it will be expected to do can
- 0:12boost performance by around 12% across
- 0:14the board and all you need to do is
- 0:15change a literal single line of code. An
- 0:18Intel software engineer going by Lilly
- 0:19Koi figured out how to exploit a process
- 0:22called speculative execution that the
- 0:23CPU uses to figure out what's about to
- 0:25happen and course correct if it's wrong.
- 0:27This is all accomplished by just adding
- 0:29a plus three to a variable to make the
- 0:31compiler less likely to generate
- 0:33branching lines of code for no reason
- 0:35when it's not needed, effectively
- 0:36improving optimization and giving you
- 0:38that boost completely for free. No
- 0:40upgrade required.
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