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Domen Kožar 23bf99b8e2 Use pixz instead of bzip2 for compressing nars
According to following two benchmarks:

- https://www.rootusers.com/gzip-vs-bzip2-vs-xz-performance-comparison/
- http://catchchallenger.first-world.info/wiki/Quick_Benchmark:_Gzip_vs_Bzip2_vs_LZMA_vs_XZ_vs_LZ4_vs_LZO

xz has better compression ratio than bzip2 at lowest compression rate.

https://github.com/vasi/pixz has been chosen as it can scale compressing
over multiple cores linearly.

We're using this in snabblab for a month now and it has improved CPU
wise the main Hydra server.
2016-08-12 11:39:07 +02:00
doc Update link to hydra nixexpression 2016-04-21 02:36:59 +02:00
src Use pixz instead of bzip2 for compressing nars 2016-08-12 11:39:07 +02:00
tests git-rev: Remove superfluous git tag 2016-04-12 16:30:42 -04:00
.gitignore Shut up warnings 2015-05-28 17:38:17 +02:00
bootstrap hydra: Simplify `bootstrap'. 2011-01-14 10:52:47 +00:00
configure.ac Don't pollute the source directory 2016-03-22 13:19:00 +01:00
COPYING hydra: revert license change 2010-03-29 14:16:46 +00:00
hydra-module.nix Use pixz instead of bzip2 for compressing nars 2016-08-12 11:39:07 +02:00
INSTALL hydra: use autoconf/-make 2010-09-30 14:29:15 +00:00
Makefile.am Install hydra-module.nix into $out/share/nix 2013-07-28 11:24:31 -04:00
README.md readme: update hacking section 2016-05-12 09:45:51 +02:00
release.nix Use pixz instead of bzip2 for compressing nars 2016-08-12 11:39:07 +02:00
shell.nix inNixShell considered harmful 2016-03-22 13:10:37 +01:00
version hydra: fix tarball build, add pre suffix to tarballs 2010-09-30 15:02:42 +00:00

To start hacking on Hydra, run:

$ bootstrap
$ nix-shell
$ ./configure $configureFlags --prefix=/opt/hydra
$ make
$ make install

Or, if you just want to build from source (on x86_64-linux):

$ nix-build -A build.x86_64-linux release.nix