tree 3b0660685ba60cf2401e70eba4572ed2691c817d
parent 1b7ae37c030a9fbbb5ebbf5d7bbfd7208cf805b7
author Arjan van de Ven <arjan@linux.intel.com> 1221323766 -0700
committer Ingo Molnar <mingo@elte.hu> 1223973526 +0200

tracing/fastboot: add a script to visualize the kernel boot process / time

When optimizing the kernel boot time, it's very valuable to visualize
what is going on at which time. In addition, with the fastboot asynchronous
initcall level, it's very valuable to see which initcall gets run where
and when.

This patch adds a script to turn a dmesg into a SVG graph (that can be
shown with tools such as InkScape, Gimp or Firefox) and a small change
to the initcall code to print the PID of the thread calling the initcall
(so that the script can work out the parallelism).

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>