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The business value argument is not to be neglected indeed. Also, if you can't scale directly from 1 to 24 threads, but - say - to only 3 and your data isn't well aligned, false sharing might just make your code take 12 days to run now. Not a purely hypothetical scenario.

Johannes P.
– Johannes P.

2020-07-11 20:17:28 +00:00
Commented Jul 11, 2020 at 20:17
This is an important answer. A lot of programs used every day are not speed limited at all, like my word processor or terminal.

qwr
– qwr

2020-07-11 21:44:44 +00:00
Commented Jul 11, 2020 at 21:44

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