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nixos/gitlab: Add options to control puma worker and threads numbers

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talyz 2021-04-01 19:47:27 +02:00
parent 9af991a1b1
commit 6230936be2
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64
nixos/modules/services/misc/gitlab.nix
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@ -652,6 +652,62 @@ in {
description = "Extra configuration to merge into shell-config.yml";
};
puma.workers = mkOption {
type = types.int;
default = 2;
apply = x: builtins.toString x;
description = ''
The number of worker processes Puma should spawn. This
controls the amount of parallel Ruby code can be
executed. GitLab recommends <quote>Number of CPU cores -
1</quote>, but at least two.
<note>
<para>
Each worker consumes quite a bit of memory, so
be careful when increasing this.
</para>
</note>
'';
};
puma.threadsMin = mkOption {
type = types.int;
default = 0;
apply = x: builtins.toString x;
description = ''
The minimum number of threads Puma should use per
worker.
<note>
<para>
Each thread consumes memory and contributes to Global VM
Lock contention, so be careful when increasing this.
</para>
</note>
'';
};
puma.threadsMax = mkOption {
type = types.int;
default = 4;
apply = x: builtins.toString x;
description = ''
The maximum number of threads Puma should use per
worker. This limits how many threads Puma will automatically
spawn in response to requests. In contrast to workers,
threads will never be able to run Ruby code in parallel, but
give higher IO parallelism.
<note>
<para>
Each thread consumes memory and contributes to Global VM
Lock contention, so be careful when increasing this.
</para>
</note>
'';
};
extraConfig = mkOption {
type = types.attrs;
default = {};
@ -1145,7 +1201,13 @@ in {
TimeoutSec = "infinity";
Restart = "on-failure";
WorkingDirectory = "${cfg.packages.gitlab}/share/gitlab";
ExecStart = "${cfg.packages.gitlab.rubyEnv}/bin/puma -C ${cfg.statePath}/config/puma.rb -e production";
ExecStart = concatStringsSep " " [
"${cfg.packages.gitlab.rubyEnv}/bin/puma"
"-e production"
"-C ${cfg.statePath}/config/puma.rb"
"-w ${cfg.puma.workers}"
"-t ${cfg.puma.threadsMin}:${cfg.puma.threadsMax}"
];
};
};