First take a look at your run levels: Run Level 1 (in SuSE) is multi-user with no network. Run Level S is single user. However, if you need better timings, you might want to hack the parallel port driver. On 23 Mar 00, at 15:11, Stuart Hall wrote:
I am in the process of writing a program that will time slot cars around my basement track for Linux. In doing this, it is becoming apparent that I need to have pretty good access to my parallel port - so much so that not many other processes can be running at the same time.
I have a minimum install, plus a little networking, installed on my 486-33 box w/ 16 meg ram. However, when doing a "top" last night, I see that almost 15 meg of ram is already being used by other processes - one of which is sendmail.
I am obviously going to have to get rid of sendmail, smb, nfs and any other services running on this machine. Are there any other suggestions for what I should be looking for to delete? When I did this "top", I was running in console mode with one user (root) only. There was nothing that appeared to be taking more than 4% of memory - in fact most of the items were taking 0.0 memory.
Any suggestions on how I can free up this machine would be appreciated. I need to get it so it is as "fast" and light as a DOS install.
Thanks, Stuart
-- Stuart Hall Cheshire, Connecticut, USA Linux User# 141732
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Jerry Feldman