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1<?xml version='1.0' encoding="UTF-8"?> 1<?xml version='1.0' encoding="UTF-8"?>
2<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> 2<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
3<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/distcc.xml,v 1.3 2003/09/08 08:09:02 blubber Exp $ --> 3<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/distcc.xml,v 1.40 2007/06/21 23:46:16 rane Exp $ -->
4 4
5<guide link="/doc/en/distcc.xml"> 5<guide link="/doc/en/distcc.xml">
6 6
7<title>Gentoo Distcc Documentation</title> 7<title>Gentoo Distcc Documentation</title>
8 8
9<author title="Author"> 9<author title="Author">
10 <mail link="lisa@gentoo.org">lisa@gentoo.org</mail> 10 <mail link="lisa@gentoo.org">Lisa Seelye</mail>
11</author> 11</author>
12 12<author title="Editor">
13 <mail link="vapier@gentoo.org">Mike Frysinger</mail>
14</author>
15<author title="Editor">
16 <mail link="erwin@gentoo.org">Erwin</mail>
17</author>
18<author title="Editor">
19 <mail link="swift@gentoo.org">Sven Vermeulen</mail>
20</author>
21<author title="Editor">
22 <mail link="pylon@gentoo.org">Lars Weiler</mail>
23</author>
13<author title="Reviewer"> 24<author title="Reviewer">
14 <mail link="swift@gentoo.org">swift@gentoo.org</mail>
15</author>
16
17<author title="Reviewer">
18 <mail link="blubber@gentoo.org">blubber@gentoo.org</mail> 25 <mail link="blubber@gentoo.org">Tiemo Kieft</mail>
19</author> 26</author>
20 27
28<abstract>
29This document serves as a HOWTO for using distcc with Gentoo.
30</abstract>
31
32<!-- The content of this document is licensed under the CC-BY-SA license -->
33<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
34<license/>
35
21<version>1.1</version> 36<version>1.19</version>
22<date>September 08, 2003</date> 37<date>2007-06-22</date>
23
24<abstract>This document serves as a HOWTO for using distcc with Gentoo.</abstract>
25 38
26<chapter> 39<chapter>
27 <title>Introduction</title> 40<title>Introduction</title>
28 <section> 41<section>
29 <title>What is distcc?</title> 42<title>What is distcc?</title>
30 <body> 43<body>
31 <p>Distcc is a program designed to distribute compiling tasks across a network to participating hosts. It is comprised of a server, <c>distccd</c> and a client program, <c>distcc</c>. Distcc can work transparently with <uri link="http://ccache.samba.org">ccache</uri> and Portage with a little set up.</p> 44
45<p>
46Distcc is a program designed to distribute compiling tasks across a network to
47participating hosts. It is comprised of a server, <c>distccd</c>, and a client
48program, <c>distcc</c>. Distcc can work transparently with <uri
49link="http://ccache.samba.org">ccache</uri>, Portage, and Automake with a
50little setup.
51</p>
52
32 </body> 53</body>
33 </section> 54</section>
34
35 <section> 55<section>
36 <title>Dependancies</title> 56<title>Using distcc to bootstrap</title>
37 <body> 57<body>
38 <pre caption="Distcc Dependancies"> 58
39&gt;=sys-apps/portage-2.0.46-r11 59<p>
40&gt;=sys-devel/gcc-config-1.3.1 60If you are planning on using distcc to help you bootstrap a Gentoo
41&gt;sys-apps/shadow 61installation, make sure you read the section <uri link="#bootstrapping">Using
42<codenote>(As of version 2.8) And the following optional dependancies when you have <c>gtk</c> in your <c>USE</c> flags</codenote> 62distcc to Bootstrap</uri>, which is situated further down in this document.
43&gt;=x11-libs/gtk+-2.2.1 63</p>
44 </pre> 64
45 </body> 65</body>
46 </section> 66</section>
47</chapter> 67</chapter>
48 68
49<chapter> 69<chapter>
50 <title>Setup</title> 70<title>Setup</title>
51 <section> 71<section>
52 <title>Setting up Portage to use Distcc</title> 72<title>Dependencies</title>
53 <body> 73<body>
54 <p>Setting up distcc is very easy to do with Portage. Follow these simple steps on each computer you want to use distcc on:</p> 74
55 <pre caption="Integrating Distcc and Portage"> 75<p>
76In order to use Distcc, all of the computers on your network need to have the
77same GCC versions. For example, mixing 3.3.x (where the x varies) is okay, but
78mixing 3.3.x with 3.2.x <b>may</b> result in compilation errors or runtime
79errors.
80</p>
81
82</body>
83</section>
84<section>
85<title>Installing Distcc</title>
86<body>
87
88<p>
89There are a couple of options you should be aware of before you start
90installing distcc.
91</p>
92
93<p>
94Distcc ships with a graphical monitor to monitor tasks that your computer is
95sending away for compilation. If you use Gnome then put 'gnome' in your USE
96flags. However, if you don't use Gnome and would still like to have the
97monitor then you should put 'gtk' in your USE flags.
98</p>
99
100<pre caption="Installing distcc">
56# <i>emerge distcc</i> 101# <i>emerge distcc</i>
102</pre>
103
104<impo>
105Remember, you must be sure to install distcc on all of your participating
106machines.
107</impo>
108
109</body>
110</section>
111<section>
112<title>Setting up Portage to use Distcc</title>
113<body>
114
115<p>
116Setting up Portage to use distcc is easy. Execute the following steps on
117each system that should participate in the distributed compiling:
118</p>
119
120<pre caption="Integrating Distcc and Portage">
121# <i>emerge distcc distcc-config</i>
57# <i>nano -w /etc/make.conf</i> 122# <i>nano -w /etc/make.conf</i>
58<codenote>Edit your FEATURES flags to include &quot;distcc&quot;</codenote> 123<comment>(Set N to a suitable number for your particular setup)</comment>
124<comment>(A common strategy is setting N as twice the number of total CPUs + 1 available)</comment>
125MAKEOPTS="-jN"
126<comment>(Add distcc to your FEATURES)</comment>
127FEATURES="distcc"
59 </pre> 128</pre>
60 129
61 <p>Next you have to specify what hosts you want to use. To do this you can use the <i>distcc-config</i> command to set that list of hosts. Here is an example of some hosts that might be in your list:</p> 130</body>
131</section>
132<section>
133<title>Specifying Participating Hosts</title>
134<body>
135
136<p>
137Use the <c>distcc-config</c> command to set the list of hosts. Here is an
138example of some hosts that might be in your list:
139</p>
140
62 <pre caption="Examples of host definitions"> 141<pre caption="Examples of host definitions">
63192.168.0.1 192.168.0.2 192.168.0.3 142192.168.0.1 192.168.0.2 192.168.0.3
64192.168.0.1/2 192.168.0.2 192.168.0.3/10 143192.168.0.1/2 192.168.0.2 192.168.0.3/10
65192.168.0.1:4000/2 192.168.0.2/1 192.168.0.3:3632/4 144192.168.0.1:4000/2 192.168.0.2/1 192.168.0.3:3632/4
66@192.168.0.1 @192.168.0.2:/usr/bin/distccd 192.168.0.3 145@192.168.0.1 @192.168.0.2:/usr/bin/distccd 192.168.0.3
146<comment>(There are also several other methods of setting up hosts. See the
147distcc manpage for more details.)</comment>
148<comment>If you wish to compile on the local machine you should put 'localhost'
149in the hosts list. Conversely if you do not wish to use the local machine to
150compile (which is often the case) omit it from the hosts list. On a slow
151machine using localhost may actually slow things down. Make sure to test your
152settings for performance.</comment>
67 </pre> 153</pre>
68 <p>It may all look complicated, but in most cases a variant of line 1 or 2 will work. An explanation of each line is: Line 1 is just a space-delimited list of hosts that will use default everything. Line 2 is a list of hosts that specifies the maxmimum number of jobs (by use of the /N) to send that host at any given time (specified with the <c>/n</c>). Since most people won't be using lines 3 or 4, I'll <uri link="http://distcc.samba.org/man/distcc_1.html">point you to</uri> the distcc docs for more information.</p> 154
69 <p>A sample command to set the hosts (for line 1) is:</p> 155<p>
156It may all look complicated, but in most cases a variant of line 1 or 2 will
157work.
158</p>
159
160<p>
161Since most people won't be using lines 3 or 4, I'll <uri
162link="http://distcc.samba.org/man/distcc_1.html">refer to</uri> the distcc
163docs (man distcc) for more information.
164</p>
165
166<p>
167For instance, to set the first line in the previous example:
168</p>
169
70 <pre caption="Sample command to set the hosts"> 170<pre caption="Sample command to set the hosts">
71# <i>/usr/bin/distcc-config --set-hosts "192.168.0.1 192.168.0.2 192.168.0.3</i> 171# <i>/usr/bin/distcc-config --set-hosts "192.168.0.1 192.168.0.2 192.168.0.3"</i>
72 </pre> 172</pre>
73 173
74 <p>The final step to integrating distcc into Portage is to re-open your <path>/etc/make.conf</path> and edit <c>MAKE_OPTS</c> to include <c>-jN</c> (where N is an integer). Typically you will want to set this to the total number of processors in your network plus one.</p> 174<p>
75 <pre caption="Final steps in make.conf"> 175Edit <path>/etc/conf.d/distccd</path> to your needs and be sure to set the
176<c>--allow</c> directive to allow only hosts you trust. For added security,
177you should also use the <c>--listen</c> directive to tell the distcc daemon
178what IP to listen on (for multi-homed systems). More information on distcc
179security can be found at <uri
180link="http://distcc.samba.org/security.html">Distcc Security Design</uri>.
181</p>
182
183<impo>
184It is important to use --allow and --listen. Please read the distccd manpage
185or the above security document for more information.
186</impo>
187
188
189<p>
190Now start the distcc daemon on all the participating computers:
191</p>
192
193<pre caption="Starting the distcc daemon">
194<comment>(Add distccd to the default runlevel)</comment>
195# <i>rc-update add distccd default</i>
196<comment>(Start the distcc daemon)</comment>
197# <i>/etc/init.d/distccd start</i>
198</pre>
199
200</body>
201</section>
202<section>
203<title>Setting up Distcc to Work With Automake</title>
204<body>
205
206<p>
207This is, in some cases, easier than the Portage setup. What you have to do is
208update your <c>PATH</c> variable to include <path>/usr/lib/distcc/bin</path>
209in front of the directory that contains <c>gcc</c> (<path>/usr/bin</path>).
210However, there is a caveat. If you use ccache you have to put distcc after
211the ccache part:
212</p>
213
214<pre caption="Setting your path">
215# <i>export PATH="/usr/lib/ccache/bin:/usr/lib/distcc/bin:${PATH}"</i>
216<comment>(You can put this in your ~/.bashrc or equivalent file to have the PATH
217set every time you log in)</comment>
218</pre>
219
220<p>
221Then, as you would normally type <c>make</c>, you would type <c>make -jN</c>
222(where N is an integer). The value of N depends on your network and the types
223of computers you are using to compile. Test your own settings to find the
224number that yields the best performance.
225</p>
226
227</body>
228</section>
229</chapter>
230
231<chapter>
232<title>Cross-Compiling</title>
233<section>
234<body>
235
236<p>
237Cross-compiling is using one architecture to build programs for another
238architecture. This can be as simple as using an Athlon (i686) to build a
239program for a K6-2 (i586), or using a Sparc to build a program for a ppc. This
240is documented in our <uri link="/doc/en/cross-compiling-distcc.xml">DistCC
241Cross-compiling Guide</uri>.
242</p>
243
244</body>
245</section>
246</chapter>
247
248<chapter id="bootstrapping">
249<title>Using Distcc to Bootstrap</title>
250<section>
251<title>Step 1: Configure Portage</title>
252<body>
253<!--
254Note that this will need to become a link to the old 2005.1 networked handbooks
255once the 2006.0 handbooks are released. Until then, the link can stay.
256-->
257<p>
258Boot your new box with a Gentoo Linux LiveCD and follow the <uri
259link="/doc/en/handbook/handbook-x86.xml?part=1">installation instructions</uri>
260up until the bootstrapping part. (See the <uri
261link="/doc/en/faq.xml#stage12">Gentoo FAQ</uri> for more information about
262bootstrapping.) Then configure Portage to use distcc:
263</p>
264
265<pre caption="Preliminary Setup">
76# <i>nano -w /etc/make.conf</i> 266# <i>nano -w /etc/make.conf</i>
267<comment>(Add distcc to the FEATURES</comment>
268FEATURES="distcc"
269<comment>(Modify MAKEOPTS to include -jN, where N is twice the number of CPUs
270+1 available)</comment>
77MAKE_OPTS=-jN 271MAKEOPTS="-jN"
78 </pre> 272</pre>
79 </body> 273
80 </section>
81 <section>
82 <title>Setting up Distcc to Work With Automake</title>
83 <body>
84 <p>This is in some cases easier than the Portage setup. What you have to do is update your <c>PATH</c> envvar to include <path>/usr/lib/distcc/bin</path> before where gcc (<path>/usr/bin</path>). However, there is a caveat. If you use ccache you have to put distcc after the ccache part. Like so:</p>
85 <pre caption="Setting your path"> 274<pre caption="Setting your path">
86# <i>export PATH="/usr/lib/ccache/bin:/usr/lib/distcc/bin:${PATH}"</i> 275# <i>export PATH="/usr/lib/ccache/bin:/usr/lib/distcc/bin:${PATH}"</i>
87 </pre> 276</pre>
88 <p>Then, as you would normally type <c>make</c>, you would type <c>make -jN</c> (where N is an integer). A safe number to use for N varries on your network and the types of computers you are using to compile. For me, I have a dual processor P3 and a K6-2/400 that compile everything for my desktop (a 1200MHz Athlon Thunderbird) and I use -j5. Test your own settings to find the right number.</p> 277
89 </body> 278</body>
90 </section> 279</section>
280<section>
281<title>Step 2: Getting Distcc</title>
282<body>
283
284<p>
285Install distcc:
286</p>
287
288<pre caption="Getting Distcc on the new box">
289# <i>USE='-*' emerge --nodeps sys-devel/distcc sys-devel/distcc-config</i>
290</pre>
291
292</body>
293</section>
294<section>
295<title>Step 3: Setting Up Distcc</title>
296<body>
297
298<p>
299Run <c>distcc-config --install</c> to setup distcc:
300</p>
301
302<pre caption="Final distcc setup">
303<comment>(Substitute host1, host2, ... with the IP number(s) of the
304participating hosts)</comment>
305# <i>/usr/bin/distcc-config --set-hosts "localhost host1 host2 host3 ..."</i>
306<comment>An example: <i>/usr/bin/distcc-config --set-hosts "localhost
307192.168.0.4 192.168.0.6"</i></comment>
308</pre>
309
310<p>
311Distcc is now set up to bootstrap! Continue with the official installation
312instructions and <e>do not forget</e> to re-emerge distcc after <c>emerge
313system</c>. This is to make sure that all of the dependencies you want are
314installed as well.
315</p>
316
317<note>
318During bootstrap and <c>emerge system</c> distcc may not appear to be used.
319This is expected as some ebuilds do not work well with distcc, so they
320intentionally disable it.
321</note>
322
323</body>
324</section>
91</chapter> 325</chapter>
92 326
93<chapter> 327<chapter>
94 <title>Cross-Compiling</title> 328<title>Troubleshooting</title>
95 <section> 329<section>
96 <title>A Note on Cross-Compiling</title> 330<title>Some Packages Don't Use Distcc</title>
97 <body> 331<body>
98 <p>Cross-compiling is using one architecture to build programs for another architecture. This can be as simple as using an Athlon (i686) to build a program for a K6-2 (i586), or using a Sparc to build a program for a ppc.</p> 332
333<p>
334As you emerge various packages, you'll notice that some of them aren't being
335distributed (and aren't being built in parallel). This may happen because the
336package's Makefile doesn't support parallel operations or the maintainer of the
337ebuild has explicitly disabled parallel operations due to a known problem.
338</p>
339
340<p>
341Sometimes distcc might cause a package to fail to compile. If this happens
342for you, please <uri link="http://bugs.gentoo.org">report</uri> it to us.
343</p>
344
99 </body> 345</body>
100 </section> 346</section>
101 <section> 347<section>
102 <title>A Personal Note on Cross-compiling</title> 348<title>Mixed GCC Versions</title>
103 <body> 349<body>
104 <p>I'd love to be able to help out on the Gentoo Cross-compiling effort, but I don't have any non-x86 machines. I can create things that work <e>in theory</e>, but I have to rely on other people to test what I write. That works to an extent, but it's tough. ;-)</p> 350
105 <p>In the near future I hope to acquire a Sparc of some type to put Gentoo on so I can play around in-house.</p> 351<p>
352If you have different GCC versions on your hosts, there will likely be very
353weird problems. The solution is to make certain all hosts have the same GCC
354version.
355</p>
356
357<p>
358Recent Portage updates have made Portage use <c>${CHOST}-gcc</c> instead of
359<c>gcc</c>. This means that if you're mixing i686 machines with other types
360(i386, i586) you will run into problems. A workaround for this may be to
361<c>export CC='gcc' CXX='c++'</c> or to put it in <path>/etc/make.conf</path>.
362</p>
363
364<impo>
365Doing this explicitly redefines some behaviour of Portage and may have some
366weird results in the future. Only do this if you're mixing CHOSTs.
367</impo>
368
369
106 </body> 370</body>
107 </section> 371</section>
108</chapter> 372</chapter>
109 373
110<chapter> 374<chapter>
111 <title>Known Problems With Distcc</title>
112 <section>
113 <title>Portage Doesn't Work With Distcc</title>
114 <body>
115 <p>This heading is a misnomer, really. The only thing that doens't work is the monitoring programs (<c>distccmon-text</c> and <c>distccmon-gnome</c>) with the standard distcc source. The reason for this is that distcc relies on the <c>TMPDIR</c> envvar, but Portage reassigns that.</p>
116 <p>The solution to this is a patch that changes the dependancy to <c>DISTCC_TMPDIR</c>. The patch is automatically applied to distcc. If you don't want to use <path>/tmp</path> (the default) you can reassign <c>DISTCC_TMPDIR</c>.</p>
117 <p>You may also notice that Distcc does not work with some packages. This can be a result of several things, such as an error in the .ebuild (Using <c>make</c> instead of <c>emake</c>) or an error in the program's Makefile, which the next section addresses.</p>
118 </body>
119 </section>
120 <section>
121 <title>Mozilla and Xfree</title>
122 <body>
123 <p>As you emerge various packages, you'll notice that they aren't being distributed (and indeed aren't being built in parallel). This is because the developers of Mozilla and Xfree .ebuilds disabled parallel building because it is known to cause problems. This isn't necessarily a distcc problem.</p>
124 <p>That isn't to say that sometimes distcc will cause a package to fail to compile.</p>
125 </body>
126 </section>
127</chapter>
128
129<chapter>
130 <title>Using Distcc to Bootstrap</title>
131 <section>
132 <title>Step 1: Build the Tarball</title>
133 <body>
134 <p>This section is helpful if you want to use Distcc during the Gentoo installation. Surprisingly it isn't that hard. What you'll need is another computer running Gentoo and a way to transfer a tarball to your new system (I use scp).</p>
135 <p>First you have to build a tarball of Distcc and include a library (<c>/usr/lib/libpopt.so.*</c>).</p>
136 <pre caption="Building the tarball">
137<i># USE='-gtk -selinux' emerge --buildpkg distcc
138# mkdir -p /tmp/distcc/usr/lib
139# cp /usr/portage/packages/sys-devel/distcc-DISTCC_VERSION.tbz2 /tmp/distcc/
140# cp /usr/lib/libpopt.so.* /tmp/distcc/usr/lib
141# cd /tmp/distcc
142# tar cfzv distcc.tar.gz *</i>
143<codenote>Be sure you replace DISTCC_VERSION with the version (and Gentoo revision) of Distcc, <c>like 2.10-r1</c></codenote>
144 </pre>
145 </body>
146 </section>
147 <section>
148 <title>Step 2: Setup on New Box</title>
149 <body>
150 <impo>Do not forget to start sshd and reset the root password for the LiveCD!</impo>
151 <p>Next, you have to boot your new box with a Gentoo Linux LiveCD and follow all of the steps up until the bootstrapping. Then procede with a little preliminary setup on the new box.</p>
152 <pre caption="Preliminary Setup">
153<codenote>Here we add distcc to FEATURES</codenote>
154<i># echo "FEATURES=\"\${FEATURES} distcc\"" >> /etc/make.conf</i>
155<codenote>You can also use <c>nano</c> to edit <c>/etc/make.conf</c> and manually add distcc to FEATURES.</codenote>
156<i># echo "MAKEOPTS=\"\${MAKEOPTS} -jN\"" >> /etc/make.conf</i>
157<codenote>Just like above, you can use <c>nano</c> to edit <c>/etc/make.conf</c> and manually change MAKEOPTS.</codenote>
158 </pre>
159 <p>Then add the distcc user to your <c>/etc/passwd</c>:</p>
160 <pre caption="Add the distcc user to /etc/passwd">
161<i># echo "distcc:x:240:2:distccd:/dev/null:/bin/false" >>/etc/passwd</i>
162<codenote>Do not forget the `<c>&gt;&gt;</c>'</codenote>
163 </pre>
164 </body>
165 </section>
166 <section>
167 <title>Step 3: Copy the Tarball</title>
168 <body>
169 <p>Next you will want to copy the distcc tarball that you made.</p>
170 <pre caption="Copy the tarball to the new box">
171<codenote>Execute this on the "old" box</codenote>
172<i># scp /tmp/distcc/distcc.tar.gz root@ip.of.new.box:/mnt/gentoo/</i>
173<codenote>Substitute <c>ip.of.new.box</c> for your new box's IP</codenote>
174 </pre>
175 </body>
176 </section>
177
178 <section>
179 <title>Step 4: Unpacking the Tarball</title>
180 <body>
181 <pre caption="Unpack the tarball">
182<i># tar xvfz distcc.tar.gz
183# tar xvfjp distcc-DISTCC_VERSION.tbz2</i>
184<codenote>Be sure you replace DISTCC_VERSION with the version (and Gentoo revision) of Distcc, <c>like 2.10-r1</c></codenote>
185 </pre>
186 </body>
187 </section>
188
189 <section>
190 <title>Step 5: Setting Up Distcc Itself</title>
191 <body>
192 <p>Now set up distcc itself...</p>
193 <pre caption="Final distcc setup">
194<i># /usr/bin/distcc-config --install
195# /usr/bin/distcc-config --set-hosts "localhost host1 host2 host3 ..."</i>
196 </pre>
197
198 <p>distcc should be set up now to bootstrap! Continue the official install guide, and dont forget to re-emerge distcc after <c>emerge system</c>.</p>
199 </body>
200 </section>
201</chapter>
202
203
204<chapter>
205 <title>Distcc Extras</title> 375<title>Distcc Extras</title>
206 <section> 376<section>
207 <title>Distcc Monitors</title> 377<title>Distcc Monitors</title>
208 <body> 378<body>
209 <p>Distcc ships with two monitors. The text-based one is always built, it is called <c>distccmon-text</c>. Running it for the first time can be a bit confusing, but it is really quite easy to use. If you run the program with no parameter it will run once. However, if you pass it a number it will update every N seconds, where N is the argument you passed.</p> 379
210 <p>The other monitor is only turned on if you enabled <c>gtk</c> in your <c>USE</c> flags. This one is GTK+ based and runs in an X environment, and it is quite lovely.</p> 380<p>
211 <p>There is a caveat to using these programs. If you want to monitor any emerge, you have to start the monitor like so:</p> 381Distcc ships with two monitors. The text-based one is always built and is
382called <c>distccmon-text</c>. Running it for the first time can be a bit
383confusing, but it is really quite easy to use. If you run the program with no
384parameter it will run once. However, if you pass it a number it will update
385every N seconds, where N is the argument you passed.
386</p>
387
388<p>
389The other monitor is only turned on if you enabled <c>gtk</c> or <c>gnome</c>
390in your <c>USE</c> flags. This one is GTK+ based, runs in an X environment
391and it is quite lovely. For Gentoo the GUI monitor has been called
392<c>distccmon-gui</c> for less confusion. Elsewhere it may be referred to as
393<c>distccmon-gnome</c>.
394</p>
395
212 <pre caption="Starting the monitors"> 396<pre caption="Starting the monitors">
213<i>sudo -u portage distccmon-text N</i> 397# <i>distccmon-text N</i>
214<codenote>Or you can start the graphical monitor...</codenote> 398<comment>(Or)</comment>
215<i>sudo -u portage distccmon-gnome</i> 399# <i>distccmon-gui</i>
216<note>If you aren't using <c>userpriv</c> in your FEATURES, you should not use the '-u portage' part.</note> 400<comment>To monitor Portage's distcc usage you can use:</comment>
401# <i>DISTCC_DIR="/var/tmp/portage/.distcc/" distccmon-text N</i>
402<comment>(Or)</comment>
403# <i>DISTCC_DIR="/var/tmp/portage/.distcc/" distccmon-gui</i>
217 </pre> 404</pre>
405
406<impo>
407If your distcc directory is elsewhere, change the DISTCC_DIR variable
408accordingly.
409</impo>
410
218 </body> 411</body>
219 </section> 412</section>
220</chapter>
221
222<chapter> 413</chapter>
223 <title>Future Plans for Distcc and Gentoo</title>
224 <section>
225 <title>distcc-subnetscan</title>
226 <body>
227 <p><c>distcc-subnetscan</c> is a perl program in development that will scan a subnet for hosts that have a participating distcc daemon. Even this will be enhanced to test if the daemon on a remote host will conform to a specific <c>CHOST</c> setting to make cross-compiling easier.</p>
228 <p>The perl script is being kept at <uri link="http://dev.gentoo.org/~lisa/distcc/distcc-subnetscan/distcc-subnetscan.pl">right here</uri> until a more formal home can be found.</p>
229 </body>
230 </section>
231 <section>
232 <title>distcc-config</title>
233 <body>
234 <p><c>distcc-config</c>, the userland configuration tool for distcc is out of date. Soon it will be rewritten to be brought up the current version of distcc.</p>
235 </body>
236 </section>
237</chapter>
238
239</guide> 414</guide>

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