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authorAndrew Waterman <andrew@sifive.com>2017-01-03 17:45:07 -0800
committerAndrew Waterman <andrew@sifive.com>2017-01-03 18:02:42 -0800
commit2398dfda399f445cf114e29b61d9331fddb09b4e (patch)
tree407c63990049b4fa853aedebb4a20bd5ef5cc333 /software/dhrystone/Makefile
parentb1f048f991e7d743e46be9c48c73d00a843f400c (diff)
Improve HiFive1 CPU frequency measurement routine
- Warm up I$ first. - Correct for integer division truncation error. - Wait for an RTC clock edge before starting the timing loop, which removes an error proportional to the number of loop iterations, allowing us to run for far less time.
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