Bug#832010: Please enable LZ4 compression

[Michael Biebl]

Am 22.07.2016 um 00:28 schrieb Yuri D'Elia:
> On Fri, Jul 22 2016, Michael Biebl <biebl at debian.org> wrote:
>> So, this is the main reason I'm worried about enabling lz4 support.
>> Afair, it's not runtime configurable, so each new journal entry would be
>> lz4 compressed, which effectively means we will have to use lz4 forever
>> (which has quite a considerable worse compression).
> 
> Depending on the scenario, the performance of XZ might be inadequate
> though.
> 
> For coredump I had to disable compression to avoid a nosedive in
> performance at each crash. Even though LZ4 is not optimal, it still
> makes a great difference compared to no compression, especially for core
> files, and it's an "accepted" tradeoff for this kind of scenario.
> 
> I initially filed an RFE directly upstream to request LZ4, only to
> discover it was already a new default but not available in debian.

Is it possible to enable lz4 for coredumps only?

Felipe's argument about apt already pulling in libz4 makes me less
concerned, fwiw, as we wouldn't introduce yet another new dependency in
the "base" system.


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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