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SubjectRe: [PATCH] documentation for basic guide to profiling
OK, fixed a couple of things ... thanks for the feedback everyone.

diff -purN -X /home/mbligh/.diff.exclude virgin/Documentation/basic_profiling.txt prof_docs/Documentation/basic_profiling.txt
--- virgin/Documentation/basic_profiling.txt Wed Dec 31 16:00:00 1969
+++ prof_docs/Documentation/basic_profiling.txt Fri Feb 28 13:44:11 2003
@@ -0,0 +1,44 @@
+These instructions are deliberately very basic. If you want something clever,
+go read the real docs ;-) Please don't add more stuff, but feel free to
+correct my mistakes ;-) (
+Thanks to John Levon and Dave Hansen for help writing this.
+<test> is the thing you're trying to measure.
+Make sure you have the correct / vmlinux referenced!
+IMHO it's easier to use "make install" for linux and hack /sbin/installkernel
+to copy config files,, vmlinux to /boot.
+get readprofile binary fixed for 2.5 / akpm's 2.5 patch from
+add "profile=2" to the kernel command line.
+clear readprofile -r
+ <test>
+dump output readprofile -m /boot/ > catured_profile
+get source (I use 0.5) from
+add "poll=idle" to the kernel command line
+Configure with CONFIG_PROFILING=y and CONFIG_OPROFILE=y & reboot on new kernel
+./configure --with-kernel-support
+make install
+One time setup (pick appropriate one for your CPU):
+P3 opcontrol --setup --vmlinux=/boot/vmlinux \
+ --ctr0-event=CPU_CLK_UNHALTED --ctr0-count=100000
+Athlon/x86-64 opcontrol --setup --vmlinux=/boot/vmlinux \
+ --ctr0-event=RETIRED_INSNS --ctr0-count=100000
+P4 opcontrol --setup --vmlinux=/boot/vmlinux \
+ --ctr0-event=GLOBAL_POWER_EVENTS \
+ --ctr0-unit-mask=1 --ctr0-count=100000
+start daemon opcontrol --start-daemon
+clear opcontrol --reset
+start opcontrol --start
+ <test>
+stop opcontrol --stop
+dump output oprofpp -dl -i /boot/vmlinux > output_file
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