On 30.06.2011, at 15:24, Alexander Graf <ag...@suse.de> wrote:
> On 30.06.2011, at 04:11, Lê Đức Tài <letai_d...@yahoo.com.vn> wrote: > > > Thank for your answer. > > Beside nbench, I'm also using Dhrystone to measure the guest cpu >performance. > > > The performance does not much diffetence too. > > Is the emulated guest performance not depend on guest processor clock? > > Please don't top-post. > > Qemu doesn't emulate cycle-accurately. Instead, it converts guest code to > host >code and executes it as fast as it can. So whatever you tell the > guest on >the >cpu speed doesn't really matter. Except for the timebase of course :). > > Mind if I ask what exactly you're trying to do with ppc emulation? I'm >interested in use cases people have. > > Alex Thank you, Exactly I want to emulate my ppc custom board (ppc440) with many features supporting as Ethernet, HDD, VGA, .. for my test environment (I have a software that running on ppc440). And I wan to get the best performance of Qemu. Tai
