On Tue, Jun 30, 2020 at 2:46 PM Lukáš Doktor <ldok...@redhat.com> wrote: > > > However, we know that the results for hosts of different architectures > > will be different - we expect that. > > > > 32-bit Intel host will also most likely produce significantly > > different results than 64-bit Intel hosts. By the way, 64-bit targets > > in QEMU linux-user mode are not supported on 32-bit hosts (although > > nothing stops the user to start corresponding instances of QEMU on a > > 32-bit host, but the results are unpredictable. > > > > Let's focus now on Intel 64-bit hosts only. Richard, can you perhaps > > enlighten us on whether QEMU (from the point of view of TCG target) > > behaves differently on different Intel 64-bit hosts, and to what > > degree? > > > > I currently work remotely, but once I am be physically at my office I > > will have a variety of hosts at the company, and would be happy to do > > the comparison between them, wrt what you presented in Report 2. > > > > In conclusion, I think a basic description of your test bed is missing > > in your reports. And, for final reports (which we call "nightly > > reports") a detailed system description, as Mr Lukas outlined, is, > > also in my opinion, necessary. > > > > Thanks, Mr. Lukas, for bringing this to our attention! > > > > You're welcome. I'm more on the python side, but as far as I know different > cpu models (provided their features are enabled) and especially architectures > result in way different code-paths. Imagine an old processor without vector > instructions compare to newer ones that can process multiple instructions at > once. > > As for the reports, I don't think that at this point it would be necessary to > focus on anything besides a single cpu model (x86_64 Intel) as there are > already many variables. Later someone can follow-up with a cross-arch > comparison, if necessary. > > Regards, > Lukáš > > > Yours, > > Aleksandar > > > > > > > > > >> Best regards, > >> Ahmed Karaman > > > > Thanks Mr. Lukáš and Aleksandar, OK, now I see how important it is to have this information somewhere on the reports page.
In response to Mr. Yongang, I said I will create an mini-report as a guide for setting up the testbed. I will add a section to this report with the detailed hardware information of the used system. Thanks for bringing this into attention. Best regards, Ahmed Karaman
