[uml-user] limit to number of umls running

[William M. <mc...@ho...>]

Ofer Wald wrote (on 08/07/2001) about the limits he had struck on trying to 
run many umls on one machine (and submitted a script he used to start them 
up).  Ofer said he had around 20 running on a host machine with 256 MByte 
RAM and 500 MByte swap.  I have tried his script out at my work on a PIII 
RH7.1 host machine which has 384 MByte RAM and 500 MByte swap.  Using the 
small debian root_fs I achieved 31 umls running simultaneously okay.  More 
than that seemed to give paging problems/errors.

I also tried the above setup but using the RH7.1 pristine root_fs and only 
managed to get around 10 umls running simultaneously without problems.

In addition, on an ancient P75 system at home, I managed to get 10 umls 
running simultaneously on my old 64MByte Ram, 64 MByte swap RH7.1 host 
machine (albeit slowly).  It appears that extra RAM improves things (in 
terms of how many uml instances you can run) - but not proportionally.

Is there any limit caused by the maximum number of Linux virtual consoles 
that can exist???  I've read (man console) that Linux can have a maximum of 
around 63 (or 64?) virtual consoles.

Cheers

William (McEwan)

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