Enabling OProfile in the OLPC kernels?

William Cohen wcohen at redhat.com
Mon Mar 19 09:54:52 EDT 2007


Bernardo Innocenti wrote:
> William Cohen wrote:
> 
>> Could we turn that on in near future. Then people can avoid building custom 
>> kernels to run OProfile? The 314 build still doesn't have OProfile enabled. Who 
>> do I need to make the request to change the line in the kernel config files to 
>> mke oprofile support available?
> 
> How do we get useful oprofile output with all binaries stripped and no
> -debuginfo packages?
> 

You could copy over the oprofile samples files and do the analysis on another 
machine. Nothing says that the debuginfo must be on the machine collecting the data.

I asked about the location of the debuginfo files before. They were not 
generally available. The kernel debuginfo rpms are the one exception. They can 
be obtained from:

http://dev.laptop.org/~dilinger/stable/

It would be good to make the olpc debuginfo rpms available like the fedora core 
packages.



-Will


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