Date: Mon, 09 Feb 2004 12:53:05 -0500 From: Mike B <meb@cinci.rr.com> To: current@freebsd.org Subject: Re: Results using ULE Message-ID: <4027C901.4020202@cinci.rr.com> In-Reply-To: <20040209000140.B0BD05D07@ptavv.es.net> References: <20040209000140.B0BD05D07@ptavv.es.net>
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I switched back and forth between 4BSD and ULE several times on my P4 system. The reason for this is that sometimes I would have rather long lapses in response (~30s) on the command line, especially when logged in on more than one terminal. On a recent occasion I was downloading sources with portupgrade's fetch only option and attempted to execute df. After typing in df and hitting return I got a new line but no output for a good 15-20s. Additionally during these periods I'm not able to switch terminals but hitting the enter key produces new lines. Mike B Kevin Oberman wrote: >I have been using ULE on one system for about two weeks. The system is a >IBM T30 with 512 MB memory running current with ACPI. The video is an >ATi Radeon M7 with 1400x1050 display. > >Generally, ULE has run OK. It seems to do a bit better than BSD4 when >the system is heavily loaded. Right now I am encoding a CD and compiling >OpenOffice. The interactivity and responsiveness of the system is good. > >I have seen some areas, typically when the system is lightly loaded, when >it works less well. All opinions are from non-quantified observation. > >1. When logging off Gnome, the screen is progressively darkened after the >logout window is opened. With BSD4, this darkening was smooth. With ULE, >it jumps in opacity. (Note that this is often on a totally idle system >except for logging off Gnome.) > >2. I see occasional freezes in the system when it is mostly idle. Most >are very brief, but I had one yesterday that lasted for at least 30 >seconds. No console errors were reported, but all windows owned by a >gnome-terminal process were frozen. (It is QUITE possible that this is >really a vte problem and is not related to ULE.) > >In general, I am pleased with the performance of the system since I >switched over to SCHED_ULE, but I still suspect something is not quite >right when a UP system is idle. > >
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