Re: Dosemu and clipper applications eating all CPU

[Stas Sergeev <stsp@aknet.ru>]

Hello.

Maximiliano Curia wrote:
> I'm trying to run a clipper program inside dosemu.  It runs ok, but it
> eats all the CPU cycles when it's idle.
You haven't specified your dosemu version.

> I've already tried changing the hogthreshold value, with no changes in
> the result.
You must keep that value to 1 - that's
the most optimistic one.

> I've been told this is a known problem,
Problem of clipper I presume? If it
just runs in a busy loop while idle,
dosemu can't really help.

> but I'm hoping it can be fixed
> in some way.
You can assign a lower priority level
to dosemu process, see nice/renice
commands. That will help as to not
crawling the system any more.
You can also try the patches from here:
https://sourceforge.net/tracker/index.php?func=detail&aid=716137&group_id=49784&atid=457450
They release the CPU cycles by making
dosemu slower, which is perhaps also
not what you really want.

The real solution (if it exists) can
be found if you trace your program with
dosdebug, see what it really does when
idle, and think about adding the
appropriate heuristic to dosemu to catch
that case (but it already catches most
of the common "idling" cases).