Oprofile, swap

[William Cohen]

M. Edward (Ed) Borasky wrote:

> I don't have my physical unit yet, but I too am interested in profiling 
> and performance tuning. Unfortunately I have no Python tuning experience 
> so I can't be of much help at the moment. I do have a "virtual ship2", 
> running on a 2.2 GHz Athlon64 X2, but that of course is cheating. :)
> 
> Oprofile is a bit tough to work with -- it makes you install a whole 
> bunch of GUI libraries just to get at the low-level profiling stuff. And 
> the kernel needs to be rebuilt with the right options -- I don't know if 
> the OLPC kernel does so. So for now, I think you'll probably be better 
> off with lower-level command-line tools.

Newer versions of OProfile RPM  have the gui interface split out into a separate 
RPM (oprofile-gui). This was done in Jun 2006.

However, you appear to be correct about the oprofile kernel.

$ grep OPROFILE config*
config-olpc-generic:# CONFIG_OPROFILE is not set

It looks like I didn't enter a tracs entry for oprofile to be enabled:

http://lists.laptop.org/pipermail/devel/2007-March/004322.html

-Will