Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!sunic!tut!hydra!hylka!kulokari
From: kulokari@cc.helsinki.fi
Newsgroups: comp.os.os2
Subject: Re: uEMACS
Message-ID: <1654.2590d3f4@cc.helsinki.fi>
Date: 21 Dec 89 13:00:36 GMT
References: <5345@udccvax1.acs.udel.EDU> <976@tuminfo1.lan.informatik.tu-muenchen.dbp.de>
Organization: University of Helsinki
Lines: 18

A serious problem in the published implementations of uEmacs on OS/2  (I have
seen  two; the first was posted by Sugih Jamin) is that the mouse/keyboard
handler uses busy loop (polling) and therefore hogs the system resources.
This shows very clearly if you monitor the CPU usage with some of the
utilities available, and background tasks slow down to a crawl.

Busy loop is a no-no in OS/2, instead you must use threads and semaphores. I
have done so in my own version, which I will probably post in the near
future. I have also completely rewritten the display handler.

There seems to be some bugs in the search routines. I will try to fix
these, too. Version 3.10 is quite buggy.

Hannu Kulokari
CC, U of Helsinki
Finland
Internet: kulokari@cc.helsinki.fi
Bitnet: kulokari@finuh