Title: Debian boots quicker and quicker
Tags: english, debian
-Date: 2009-06-17 14:20
-
-<p>Monday and tuesday I spent in London with a lot of the people
-involved in the boot system on Debian and Ubuntu, to see if we could
-find more ways to speed up the boot system. This was an Ubuntu funded
-developer gathering. It was quite productive. We also discussed the
-future of boot systems, and ways to handle the increasing number of
-boot issues introduced by the Linux kernel becoming more and more
+Date: 2009-06-24 21:40
+
+<p>I spent Monday and tuesday this week in London with a lot of the
+people involved in the boot system on Debian and Ubuntu, to see if we
+could find more ways to speed up the boot system. This was an Ubuntu
+funded
+<a href="https://wiki.ubuntu.com/FoundationsTeam/BootPerformance/DebianUbuntuSprint">developer
+gathering</a>. It was quite productive. We also discussed the future
+of boot systems, and ways to handle the increasing number of boot
+issues introduced by the Linux kernel becoming more and more
asynchronous and event base. The Ubuntu approach using udev and
upstart might be a good way forward. Time will show.</p>
<li>Disable the init.d/hwclock*.sh scripts and make sure the hardware
clock is in UTC.</li>
-<li>Install and activate the insserv package to enable dependency
- based boot sequencing, and enable concurrent booting.</li>
+<li>Install and activate the insserv package to enable
+ <a href="http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot">dependency
+ based boot sequencing</a>, and enable concurrent booting.</li>
</ul>
+<p>Support for makefile-style concurrency during boot was uploaded to
+unstable yesterday. When we tested it, we were able to cut 6 seconds
+from the boot sequence. It depend on very correct dependency
+declaration in all init.d scripts, so I expect us to find edge cases
+where the dependences in some scripts are slightly wrong when we start
+using this.</p>
+
<p>On our IRC channel for this effort, #pkg-sysvinit, a new idea was
introduced by Raphael Geissert today, one that could affect the
startup speed as well. Instead of starting some scripts concurrently
possible to run a of them in the same process. A quick way to test
this would be to enable insserv and run 'mv /etc/rc2.d/S* /etc/rcS.d/;
insserv'. Will need to test if that work. :)</p>
-
-<p>Support for makefile-style concurrency during boot was uploaded to
-unstable yesterday. When we tested it, we were able to cut 6 seconds
-from the boot sequence. It depend on very correct dependency
-declaration in all init.d scripts, so I expect us to find edge cases
-where the dependences in some scripts are slightly wrong when we start
-using this.</p>