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* Sync with the trunk.

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This commit is contained in:
Eelco Dolstra 2010-08-24 09:56:28 +00:00
parent 5c5ab2bc12 c67eccc26d
commit 955d11aae7
12 changed files with 114 additions and 13 deletions
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19
doc/manual/conf-file.xml
View file

@ -97,6 +97,25 @@ env-keep-derivations = false
</varlistentry>
<varlistentry xml:id="conf-build-cores"><term><literal>build-cores</literal></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 can be overriden using the <option
linkend='opt-cores'>--cores</option> command line switch and
defaults to <literal>1</literal>. The value <literal>0</literal>
means that the builder should use all available CPU cores in the
system.</para></listitem>
</varlistentry>
<varlistentry xml:id="conf-build-max-silent-time"><term><literal>build-max-silent-time</literal></term>
<listitem>

3
doc/manual/manual.xml
View file

@ -27,10 +27,11 @@
<year>2007</year>
<year>2008</year>
<year>2009</year>
<year>2010</year>
<holder>Eelco Dolstra</holder>
</copyright>
<date>September 2009</date>
<date>August 2010</date>
</info>

2
doc/manual/nix-push.xml
View file

@ -120,7 +120,7 @@ dependencies used in the build, such as compilers).</para>
dependencies, we can do:
<screen>
$ nix-push <replaceable>urls</replaceable> $(nix-instantiate $(nix-store -r foo.nix))</screen>
$ nix-push <replaceable>urls</replaceable> $(nix-store -r $(nix-instantiate foo.nix))</screen>
</para>

4
doc/manual/opt-common-syn.xml
View file

@ -13,6 +13,10 @@
</group>
<replaceable>number</replaceable>
</arg>
<arg>
<arg><option>--cores</option></arg>
<replaceable>number</replaceable>
</arg>
<arg>
<arg><option>--max-silent-time</option></arg>
<replaceable>number</replaceable>

18
doc/manual/opt-common.xml
View file

@ -103,6 +103,24 @@
</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>
<varlistentry xml:id="opt-max-silent-time"><term><option>--max-silent-time</option></term>
<listitem><para>Sets the maximum number of seconds that a builder

53
doc/manual/release-notes.xml
View file

@ -6,6 +6,59 @@
<!--==================================================================-->
<section xml:id="ssec-relnotes-0.16"><title>Release 0.16 (August 17, 2010)</title>
<para>This release has the following improvements:</para>
<itemizedlist>
<listitem>
<para>The Nix expression evaluator is now much faster in most
cases: typically, <link
xlink:href="http://www.mail-archive.com/nix-dev@cs.uu.nl/msg04113.html">3
to 8 times compared to the old implementation</link>. It also
uses less memory. It no longer depends on the ATerm
library.</para>
</listitem>
<listitem>
<para>
Support for configurable parallelism inside builders. Build
scripts have always had the ability to perform multiple build
actions in parallel (for instance, by running <command>make -j
2</command>), but this was not desirable because the number of
actions to be performed in parallel was not configurable. Nix
now has an option <option>--cores
<replaceable>N</replaceable></option> as well as a configuration
setting <varname>build-cores =
<replaceable>N</replaceable></varname> that causes the
environment variable <envar>NIX_BUILD_CORES</envar> to be set to
<replaceable>N</replaceable> when the builder is invoked. The
builder can use this at its discretion to perform a parallel
build, e.g., by calling <command>make -j
<replaceable>N</replaceable></command>. In Nixpkgs, this can be
enabled on a per-package basis by setting the derivation
attribute <varname>enableParallelBuilding</varname> to
<literal>true</literal>.
</para>
</listitem>
<listitem>
<para><command>nix-store -q</command> now supports XML output
through the <option>--xml</option> flag.</para>
</listitem>
<listitem>
<para>Several bug fixes.</para>
</listitem>
</itemizedlist>
</section>
<!--==================================================================-->
<section xml:id="ssec-relnotes-0.15"><title>Release 0.15 (March 17, 2010)</title>

2
nix.conf.example
View file

@ -63,7 +63,7 @@
#
# This option defines the number of CPU cores to utilize in parallel
# within a build job, i.e. by passing an appropriate `-jN' flag to GNU
# make. The default is 1, meaning that parallel building within jobs
# Make. The default is 1, meaning that parallel building within jobs
# is disabled. Passing the special value `0' causes Nix to try and
# auto-detect the number of available cores on the local host. This
# setting can be overridden using the `--cores' command line switch.

6
release.nix
View file

@ -1,5 +1,5 @@
{ nix ? {outPath = ./.; rev = 1234;}
, nixpkgs ? ../nixpkgs
{ nixpkgs ? ../nixpkgs
, nix ? { outPath = ./.; rev = 1234; }
, officialRelease ? false
}:
@ -80,7 +80,7 @@ let
coverage =
with import nixpkgs {};
with import nixpkgs { system = "x86_64-linux"; };
releaseTools.coverageAnalysis {
name = "nix-build";

3
src/libstore/remote-store.cc
View file

@ -198,6 +198,9 @@ void RemoteStore::setOptions()
writeInt(logType, to);
writeInt(printBuildTrace, to);
}
if (GET_PROTOCOL_MINOR(daemonVersion) >= 6) {
writeInt(buildCores, to);
}
processStderr();
}

2
src/libstore/worker-protocol.hh
View file

@ -8,7 +8,7 @@ namespace nix {
#define WORKER_MAGIC_1 0x6e697863
#define WORKER_MAGIC_2 0x6478696f
#define PROTOCOL_VERSION 0x105
#define PROTOCOL_VERSION 0x106
#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)

3
src/nix-worker/nix-worker.cc
View file

@ -502,6 +502,9 @@ static void performOp(unsigned int clientVersion,
logType = (LogType) readInt(from);
printBuildTrace = readInt(from) != 0;
}
if (GET_PROTOCOL_MINOR(clientVersion) >= 6) {
buildCores = readInt(from);
}
startWork();
stopWork();
break;

2
version
View file

@ -1 +1 @@
0.16
1.0