【7zip】壓縮使用多核心 7-Zip compression on multi-core computers

Note that this answer uses LZMA2 and not LZMA. LZMA2 can use more than two cores by splitting the file into chunks and independently processing them. This can result in LZMA offering higher compression ratios.

使用 LZMA2 就可以用多核心壓縮，可以滿速跑。但單檔 12G大小的檔案用壓縮， CPU E5450, 8GRAM 要壓縮近半小時。

再看看壓縮率如何 應該有到 31%. 

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