wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-07-07 10:11:47 +02:00
Code Activity

Support auto-configuration of build-max-jobs

Browse source 
"build-max-jobs" and the "-j" option can now be set to "auto" to use
the number of CPUs in the system. (Unlike build-cores, it doesn't use
0 to imply auto-configuration, because a) magic values are a bad idea
in general; b) 0 is a legitimate value used to disable local
building.)

Fixes #1198.
This commit is contained in:
Eelco Dolstra 2017-02-28 12:54:50 +01:00
parent 3fab1f04a7
commit 7251d048fa
No known key found for this signature in database
GPG key ID: 8170B4726D7198DE
4 changed files with 18 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

6
doc/manual/command-ref/conf-file.xml
View file

@ -101,9 +101,9 @@ flag, e.g. <literal>--option gc-keep-outputs false</literal>.</para>
<listitem><para>This option defines the maximum number of jobs
that Nix will try to build in parallel. The default is
<literal>1</literal>. You should generally set it to the number
of CPUs in your system (e.g., <literal>2</literal> on an Athlon 64
X2). It can be overridden using the <option
<literal>1</literal>. The special value <literal>auto</literal>
causes Nix to use the number of CPUs in your system. It can be
overridden using the <option
linkend='opt-max-jobs'>--max-jobs</option> (<option>-j</option>)
command line switch.</para></listitem>

5
doc/manual/command-ref/opt-common.xml
View file

@ -93,8 +93,9 @@
<term><option>-j</option></term>
<listitem><para>Sets the maximum number of build jobs that Nix will
perform in parallel to the specified number. The default is
specified by the <link
perform in parallel to the specified number. Specify
<literal>auto</literal> to use the number of CPUs in the system.
The default is specified by the <link
linkend='conf-build-max-jobs'><literal>build-max-jobs</literal></link>
configuration setting, which itself defaults to
<literal>1</literal>. A higher value is useful on SMP systems or to