Jan Engelhardt wrote:
On Saturday 2016-02-06 13:18, Per Jessen wrote:
Jan Engelhardt wrote:
Not using brotli wastes diskspace (and time). It's kind of new, but compressed as well as xz, but in the time that it would take gzip. Try it with linux-4*.tar.
Jan, which command line client did you use? I tried brotli with the one from https://github.com/google/brotli but the compression times are not exactly impressive. (much slower than lzma).
The google "bro"mance encoder defaults to Q11. The competetive comparison is achieved with something like Q5/Q6 (Q6 is the defalut for gzip and xz anyway).
Ahaaa. Much better! Thanks - seems silly to default to q11, I have to say. With the default, I was getting the same compression ratio, but it took 10times longer. I'm testing with a 500Mb mail-log, which lzma will typically compress to 37-38Mb in 6-10mins, depending on the processor. With q6, bro just did 49Mb in 52secs. Wow. For my purposes, that's a significant improvement over xz. Compression time reduced by an order of magnitude or more, at the cost of 10Mb. I notice that bro is seeded with stats from webpages, but I see no way of generating such stats? I have often thought compression could be improved if you know beforehand what's being compressed. -- Per Jessen, Zürich (5.4°C) http://www.hostsuisse.com/ - virtual servers, made in Switzerland. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org