SCHED_ULE on desktop system
Jeff Roberson
jroberson at chesapeake.net
Sat Sep 15 23:47:23 PDT 2007
On Sun, 16 Sep 2007, Roman Bogorodskiy wrote:
> Hello,
>
> I'm curious if SCHED_ULE is designed to be used on a desktop system. I'm
> running -CURRENT at home and tried to use SCHED_ULE for some time. It
> works alright while the load is not very high. But once I start
> compiling something (running 'make buildworld' or 'portupgrade -a' for
> example), the machine comes almost unusable - X11's windows takes a lot
> of time to redraw, changing virtual desktop in window manager may take
> a several seconds. And it's nearly impossible to watch some movie with
> mplayer.
Roman,
This is contrary to the experiences of many others. Can you send me your
dmesg? There may be something about your particular hardware that is
triggering a bug. ULE is definitely designed to be responsive on the
desktop.
Thanks,
Jeff
>
> However, when I switch to SCHED_4BSD, system's reaction time gets lower
> and I even can watch a movie with mplayer when compiling something.
>
> Is SHCED_ULE designed to behave that way or I spotted some bug?
>
> PS I run UP system.
>
> Roman Bogorodskiy
>
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