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maketgz: switch to xz instead of lzma #1604

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commented Jun 21, 2017

The compressed output size seems to be a tad bit smaller, but generally
xz seems more preferred these days and is used directly by for example
gentoo instead of bz2.

"Users of LZMA Utils should move to XZ Utils" =>
https://tukaani.org/lzma/

maketgz: switch to xz instead of lzma
The compressed output size seems to be a tad bit smaller, but generally
xz seems more preferred these days and is used directly by for example
gentoo instead of bz2.

"Users of LZMA Utils should move to XZ Utils" =>
https://tukaani.org/lzma/
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commented Jun 21, 2017

Coverage Status

Coverage increased (+0.008%) to 73.793% when pulling 8c07a53 on bagder/xz into 8de8f4e on master.

@bagder bagder closed this in 0537238 Jun 21, 2017

@bagder bagder deleted the bagder/xz branch Jun 21, 2017

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commented Jun 23, 2017

The daily snapshots stopped being built shortly after this was committed. Coincidence?

And on an unrelated note, the tradeoff for using xz -9 is much worse than for gzip. It drastically increases the amount of RAM required for decompressing, without improving compression for smaller-sized files. The docs say "it is good to avoid using the presets -7 ... -9 when there's no real need for them."

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commented Jun 23, 2017

Coincidence?

Nope, I managed to break the script when I updated it for the new extension! Fixed now.

the tradeoff for using xz -9 is much worse than for gzip

I changed it to -6e now, as that compresses almost as good. Thanks!

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