perf top broken on ppc64

[Alexander Graf]

On 21.04.2010, at 07:29, Ian Munsie wrote:

> Excerpts from Alexander Graf's message of Wed Apr 21 09:21:36 +1000 2010:
>> Hi,
>> 
>> While trying to find out performance bottlenecks in KVM for PowerPC I
>> figured I'd try and use "perf top" to see what's going on in the
>> system. This works great on my G4, but doesn't on the Powerstation
>> (970MP).
>> 
>> The only weird thing I can imagine about this setup is that I'm
>> running 32 bit userland on a 64 bit kernel. So I went ahead and
>> compiled perf for ppc64 - without any change:
> 
> I'm using 32 bit userland and 64 bit kernel on a PowerPC box and it's working for me.
> Are you building perf from the tip tree?

I'm using kvm.git which is pretty close to tip. The version says something 2.6.34-rc3'ish. Has anything significantly changed since then?

Either way - I'll give it a try.


Alex