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Created March 3, 2022 21:37
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performance.md

System

% sudo dmidecode -s processor-version
Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz

5.16.11

Uses SHA-1 as the entropy extractor.

WITH RDRAND

% pv -S -s 1G /dev/urandom > /dev/null
1.00GiB 0:00:04 [ 210MiB/s] [================================>] 100%

WITHOUT RDRAND

% pv -S -s 1G /dev/urandom > /dev/null
1.00GiB 0:00:02 [ 400MiB/s] [================================>] 100%

5.17-rc6

Uses BLAKE2s as the entropy extractor.

WITH RDRAND

% pv -S -s 1G /dev/urandom > /dev/null
1.00GiB 0:00:02 [ 402MiB/s] [================================>] 100%

WITHOUT RDRAND

% pv -S -s 1G /dev/urandom > /dev/null
1.00GiB 0:00:02 [ 409MiB/s] [================================>] 100%
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