zram: Optimize LZ4 dictionary compression performance#631
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Calling `LZ4_loadDict()` repeatedly in Zram causes significant overhead due to its internal dictionary pre-processing. This commit introduces a template stream mechanism to pre-process the dictionary only once when the dictionary is initially set or modified. It then efficiently copies this state for subsequent compressions. This optimization improves LZ4 dictionary compression performance by over 50% in Zram I/O tests.
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Pull request for series with
subject: zram: Optimize LZ4 dictionary compression performance
version: 1
url: https://patchwork.kernel.org/project/linux-block/list/?series=1064046