On Sun, Apr 03, 2005 at 02:45:40PM -0700, Nate Lawson wrote: > Christian Brueffer wrote: > >On Sun, Apr 03, 2005 at 12:07:14PM -0400, Pierre-Luc Drouin wrote: > > > >>Christian Brueffer wrote: > >> > >> > >>>On Sat, Apr 02, 2005 at 09:16:48PM -0500, Pierre-Luc Drouin wrote: > >>> > >>>>Since I upgraded from 5.3-stable to 5.4-prerelease, I've noticed that > >>>>my computer is hanging badly under load. I've a P4 2.53 GHz without > >>>>hyperthreading (no SMP). I use the same kernel configurations than > >>>>before. Now when I compile a port for example, the mouse pointer hangs > >>>>in Fluxbox and Mozilla takes forever (meaning ~5 sec) to refresh the > >>>>screen. Even vi hangs. I do not see any warning/error message. Is it a > >>>>known problem with 5.4? > >>>> > >>> > >>>I have experienced something similar, putting the following into rc.conf > >>>worked for me: > >>> > >>>performance_cpu_freq="HIGH" > >>> > >>>- Christian > >>> > >>> > >> > >>Yes, this seams to fix it. I didn't know that I had a laptop? :) > >> > > > > > >Good to hear. > > > >Nate, this regression was introduced during the cpufreq and friends MFC. > >Is switching the performance_cpu_freq default to HIGH the way to go for > >5.4-RELEASE? > > > >- Christian > > > > As you can see from etc/defaults/rc.conf on both -current and RELENG_5, > we don't currently change the frequency at all: > > performance_cpu_freq="NONE" # Online CPU frequency > economy_cpu_freq="NONE" # Offline CPU frequency > > However, it sounds like his system's BIOS is booting up with a low > acpi_throttle setting (probably the lowest one, 12.5% on many systems) > and so he is seeing very slow performance. (Only the acpi_throttle > cpufreq driver has been MFCd for the 5.4 release and the others will > follow the release.) Initially, I thought it was safest not to even > touch the frequency but it looks like it is necessary for some systems > to always force it high by default. > > I'll change the default to HIGH so that we always put systems in the > fastest performance mode by default. It will be MFCd quickly as well. >
Great, thanks! - Christian -- Christian Brueffer [EMAIL PROTECTED] [EMAIL PROTECTED] GPG Key: http://people.freebsd.org/~brueffer/brueffer.key.asc GPG Fingerprint: A5C8 2099 19FF AACA F41B B29B 6C76 178C A0ED 982D
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