🚀 go-pugleaf

In article <BuDABr.3wL@lut.fi> you write:
>Making my kernel effecient for my hardware confirguration, I
>need to modify /etc/master for example, but I don't know what all
>the options are and what figures they can have, so I'm
>asking someone to mail me or here a short description of this file.
>
>Thanks,
>
>Willi
>messmer@lut.fi
>

Here is a list of the the kernel parameters I have found most useful to modify:

callouts:  number of callouts the kernel uses for event waiting
charlists:  number of character lists the terminal driver uses per terminal
filetab:  number of entries in the kernel open file table
kbuffers:  specifies the number of disk buffers in the kernel
kprocs:  number of kernel defined processes that the kernel supports
maxprocs:  maximum number of processes per terminal session
procs:  total number of simultaneous processes for the kernel
ptybuffers:  number of pseudo-terminals that can be present
slice:  percentage of time in quanta (each .333 seconds) that a process can
        run before it must relinquish control of the processor
texttab:  specifies the number of shared text segment entries in the text table


The best thing to do before modifying kernel parameters and rebuilding the 
kernel is to do analysis of system activity when it is most heavily in use.
For example, "sar -A 10 30 > /tmp/saroutput" will collect performance data 
30 times spaced 10 seconds apart.  I usually edit the output file and delete
everything except the headers at the top of the file and the averages at the
bottom.

--Keith Devlin
-- 
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Keith Devlin                  uunet!ddssuprs!keith | You'll never know what it 
(404)-442-7589                   keith@dickens.com | means to be REALLY loud
<Dickens Data Systems  -  Technical Support Group> | until you own a Harley. 
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