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reorder/reword processor cache notes

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Damian Gryski 2018-04-09 09:44:51 -07:00
parent a28dff0e41
commit 4c6200bf44
1 changed files with 3 additions and 3 deletions
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performance.md
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@ -922,10 +922,10 @@ Techniques specific to the architecture running the code
* building intuition around cache-lines: sizes, padding, alignment * building intuition around cache-lines: sizes, padding, alignment
* OS tools to view cache-misses * OS tools to view cache-misses
* maps vs. slices * maps vs. slices
* SOA vs AOS layouts * SOA vs AOS layouts: row-major vs. column major; when you have an X, do you need another X or do you need a Y?
* reducing pointer chasing
* temporal and spacial locality: use what you have and what's nearby as much as possible * temporal and spacial locality: use what you have and what's nearby as much as possible
* memory prefetching; frequently ineffective; lack of intrinsics means function call overhead * reducing pointer chasing
* explicit memory prefetching; frequently ineffective; lack of intrinsics means function call overhead (removed from runtime)
* make the first 64-bytes of your struct count * make the first 64-bytes of your struct count
* branch prediction * branch prediction
* remove branches from inner loops: * remove branches from inner loops: