Re: Performance measurement: Building openembedded-core with and without overclocking on C-i7 2600K

[Ulf Samuelsson <ulf_samuelsson@telia.com>]

2011-10-18 08:28, Anders Darander skrev:
> * Ulf Samuelsson<ulf_samuelsson@telia.com>  [111017 22:45]:
>> If anyone is interested...
> Build stats are always interesting... ;)
>
>> Same machine in two different configurations.
>> .........................................................#1...........................#2
>> P8Z68V Pro
>> Core-i7 2600K @                             3.4 GHz..................4.4 GHz
>> 8 GB @ ...........................................1333
>> MHz...............1640 MHz
>> 1TB WD Black 7200 RPM
>> Ubuntu 11-10
>> Almost all source code already in source directory
> This would severely restrict the usefulness of the comparison. I'd guess
> that this means that in one case the source will be downloaded, while
> it'll already be downloaded in the second test. Could you redo the
> statistics with all sources downloaded?
I had already built it once before running the first test then updated
and I think one additional package was downloaded over a 100 MBps line
so it affects a little, but not too much.

I think the conclusion:
     Increasing the CPU speed by 30% and the memory frequency by 20%
     gives 10-15% faster build time is OK.



>> Building meta-toolchain is 13% faster with overclocking.
> Was the overclocking test run after the non-overclocking?
>
> Cheers,
> Anders
>


-- 
Best Regards
Ulf Samuelsson