Bug#832010: Please enable LZ4 compression

[Yuri D'Elia]

On Thu, Jul 21 2016, Michael Biebl <biebl at debian.org> wrote:
> And in Debian we build against libxz, so xz compression is used for core
> files.

Indeed, and it's pretty slow.

> What would we gain by switching from xz to lz4. Can you provide numbers?

I don't have enough time to back it up comparing exactly the difference
between LZ4 and XZ in coredump, but if you compare regular XZ to LZ4 you
can expect anywhere between 10x and 50x improvement in compression
speed while maintaining an acceptable compression ratio.