23bf99b8e2
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.
28 lines
592 B
Perl
28 lines
592 B
Perl
package Hydra::View::NixNAR;
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use strict;
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use base qw/Catalyst::View/;
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use Hydra::Helper::CatalystUtils;
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sub process {
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my ($self, $c) = @_;
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my $storePath = $c->stash->{storePath};
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my $numThreads = $c->config->{'compress_num_threads'};
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my $pParam = ($numThreads > 0) ? "-p$numThreads" : "";
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$c->response->content_type('application/x-nix-archive'); # !!! check MIME type
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my $fh = new IO::Handle;
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open $fh, "nix-store --dump '$storePath' | pixz -0 $pParam |";
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setCacheHeaders($c, 365 * 24 * 60 * 60);
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$c->response->body($fh);
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return 1;
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}
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1;
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