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  • Please, be aware this thread has been read 104k times to date. Be sure to add something distinctive. So far, I don't see any way this post actually contributes to the overall thread. How is it different from writing a one-liner: xz -k -8e -M 7000MB -T 8 -v whatever.img? It has been already posted here for instance not exacly the same, but better with the XZ_OPT syntax pointed out. Cheers. Commented Jan 20, 2020 at 13:48
  • I sharing my experience in this matter with technical aspects. The example is based on the syntax xz (XZ Utils) 5.2.2 (with man xz) as I write above. I think the test gives a broader picture of the use of xz and an example for further tests optimizing the compression rate vs performance vs equipment load. Regards. Commented Jan 20, 2020 at 16:22