wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-07-10 04:43:53 +02:00
Code Activity

* Document --cores in the manual.

Browse source
This commit is contained in:
Eelco Dolstra 2010-08-17 07:22:05 +00:00
parent b75e1043a3
commit 86f65edf4e
5 changed files with 46 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

20
doc/manual/opt-common.xml
View file

@ -98,7 +98,25 @@
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
exploit I/O latency. </para></listitem>
exploit I/O latency.</para></listitem>
</varlistentry>
<varlistentry xml:id="opt-cores"><term><option>--cores</option></term>
<listitem><para>Sets the value of the <envar>NIX_BUILD_CORES</envar>
environment variable in the invocation of builders. Builders can
use this variable at their discretion to control the maximum amount
of parallelism. For instance, in Nixpkgs, if the derivation
attribute <varname>enableParallelBuilding</varname> is set to
<literal>true</literal>, the builder passes the
<option>-j<replaceable>N</replaceable></option> flag to GNU Make.
It defaults to the value of the <link
linkend='conf-build-cores'><literal>build-cores</literal></link>
configuration setting, if set, or <literal>1</literal> otherwise.
The value <literal>0</literal> means that the builder should use all
available CPU cores in the system.</para></listitem>
</varlistentry>