Date: Wed, 23 Feb 2005 11:25:52 -0800 From: Nate Lawson <nate@root.org> To: Kevin Oberman <oberman@es.net> Cc: current@freebsd.org Subject: Re: patch: p4tcc and speedstep cpufreq drivers Message-ID: <421CD8C0.2040805@root.org> In-Reply-To: <20050219053023.025DF5D07@ptavv.es.net> References: <20050219053023.025DF5D07@ptavv.es.net>
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Kevin Oberman wrote: > > Well, it all seems working, but the performance is not proportional to > the "frequency". I am attaching the results of testing. The fist column > is value of freq and the second is the transfer rate from dd to md5. > > FWIW, when I did have TCC working I had 31 freq_levels, but if I set the > freq below about 200, my system freezes and requires a hard power > cycle. I am running ULE but no PREEMPTION. The exact point at which it > locks up is not consistent. Please cvsup and test. I imported a bugfixed version of p4tcc. I've run an R32 at 50 Mhz, no problems. -- Nate
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