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Two things:
LZ4 like core speed. It's not much bound by main memory BW nor L3 BW. So, L1 and IPC make LZ4 happy.
Triple/quad channel...
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LZ4 doesn't use a dictionary--it only makes references to the input stream and the output stream. And, yes, of course, these will benefit from some caching...
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Well, yes, that's exactly it. This particular program just doesn't need much cache as it's designed to work well on very small processors without any...Last edited by willmore; 26 April 2022, 07:34 AM.
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LZ4 is very cache friendly. It reads through its input buffer and coppies that to the output buffer and occasionally reads back a little bit in the output...
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