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Alexey Milovidov 2021-03-14 00:51:13 +03:00
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base/glibc-compatibility/memcpy/memcpy.h
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@ -40,6 +40,7 @@
* - rep movsb;
* Performance will depend on the size threshold, on the CPU model, on the "erms" flag
* ("Enhansed Rep MovS" - it indicates that performance of "rep movsb" is decent for large sizes)
* https://stackoverflow.com/questions/43343231/enhanced-rep-movsb-for-memcpy
*
* Using AVX-512 can be bad due to throttling.
* Using AVX can be bad if most code is using SSE due to switching penalty