[improve][LZ4] Optimize LZ4 compression algorithm implementation #261
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Motivation
We are looking for 4-byte repeating blocks, but are using 8 bytes for hashing. Although this reduces the probability of hash collisions, it also reduces the probability of finding suitable repeated code blocks, which leads to a decrease in compression rate.
Modification
Replace
hash(UNSAFE.getLong(inputBase, input), mask)withhash(UNSAFE.getInt(inputBase, input), mask).Verify
I will submit the test results later。