From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FftSe-0004Zf-UB for qemu-devel@nongnu.org; Tue, 16 May 2006 02:55:16 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FftSd-0004ZP-DH for qemu-devel@nongnu.org; Tue, 16 May 2006 02:55:16 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FftSc-0004ZM-Sj for qemu-devel@nongnu.org; Tue, 16 May 2006 02:55:14 -0400 Received: from [64.233.162.199] (helo=nz-out-0102.google.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1FftVD-0007KM-1e for qemu-devel@nongnu.org; Tue, 16 May 2006 02:57:55 -0400 Received: by nz-out-0102.google.com with SMTP id q3so13470nzb for ; Mon, 15 May 2006 23:55:13 -0700 (PDT) Message-ID: <46d6db660605152355u4d05624i2f07882b221f9913@mail.gmail.com> Date: Tue, 16 May 2006 08:55:13 +0200 From: "Christian MICHON" Subject: Re: [Qemu-devel] objective benchmark? In-Reply-To: <000e01c678b3$cd372460$0464a8c0@athlon> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <200605152203.00826.mr@ramendik.ru> <44695113.8040708@us.ibm.com> <000e01c678b3$cd372460$0464a8c0@athlon> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org how can we do the same if the host is winXP ? Today, on linux guests, 2.4.x kernel boot faster than 2.6.x kernel inside qemu (unless using "clock=3Dpit" on 2.6.x). 2 days ago, when I tried to setup Solaris x86 10 guest inside winXP host, I gave up since the timing engine inside the guest seems slow. I would really like to know how to solve this on XP hosts. Thanks, On 5/16/06, Kazu wrote: > Anthony Liguori wrote: > > > Mikhail Ramendik wrote: > >> Hello, > >> > >> As I have reported before, it seems that on my host linux system kqemu > does > >> not work with guest win98se. > >> > >> Is there any benchmark that I could run in the guest, with and without > kqemu, > >> to check if this is so objectively? (Ideally I'd like two benchmarks - > 16-bit > >> and 32-bit code). > >> > > > > The vast majority of guest benchmarking programs are going to give you > > invalid results. The clock within QEMU (rdtsc and wall clock) are not > > very reliable and this is going to skew the results. > > > > If you set /proc/sys/dev/rtc/max-user-freq to 1024 and disable cpuspeed > service that is related to SpeedStep/PowerNow! on a host OS, the clock in > guest OS works fine. > > I checked it on i686/x86_64 Linux host. > > Regards, > Kazu > > > > _______________________________________________ > Qemu-devel mailing list > Qemu-devel@nongnu.org > http://lists.nongnu.org/mailman/listinfo/qemu-devel > --=20 Christian