Revive micro-benchmarks for vector functions#571
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blapie merged 3 commits intoshibatch:masterfrom Aug 29, 2024
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Store the result of the function call during its benchmark to prevent it from being optimized away. Also changed name of NITER1 and NITER2 macros to more obvious acronymes. Tested on aarch64 and x86 so far.
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What is the purpose of this pull request?
Check if existent micro benchmark program is working.
The micro benchmark system in place would compile and run hitting no errors, however, the execution time returned for every function seemed flatlined at 2ns (as described in #445). Turns out the function call was being optimized away during its benchmark.
Updated program with relevant changes to prevent this.
What changes did you make?
Store the result of the function call during the benchmark, which prevents the compiler from removing the function call. Also added a warm up call.
Does this PR relate to any existing issue?
This PR should fix #445 and relates to issue #9.