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borg compresses 2.3x faster than casync (and other benchmarks) #268

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safinaskar opened this issue Jun 24, 2023 · 1 comment
Open

borg compresses 2.3x faster than casync (and other benchmarks) #268

safinaskar opened this issue Jun 24, 2023 · 1 comment

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@safinaskar
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safinaskar commented Jun 24, 2023 •
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borgbackup 2 compresses VM images 2.3x faster than casync on exactly same settings. I. e. same chunker params, same compression, etc. See details (and more benchmarks) here: borgbackup/borg#7674 . I did big comparison of speed of dedupper solutions.

Also, my tests (see above) show that fixed-size chunking is faster for storing sequential snapshots of single VMs without losing in compression ratio. (Because data usually stays in same place inside VM image.) So it would be great to support fixed size chunking in addition to buzhash in casync
@safinaskar
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I updated benchmark. Results for casync are similar

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