Kernel parameters for Smallworld

[Rita C Workman]

The text file I can see..

How's about swapinfo -tam and sar -v 1 10

Thanks,
Rita

[RogerVI]

sarv.txt

[Rita C Workman]

First, I know nothing about Smallworld CST, I tune generally for Oracle.

But...
sar -v shows you the ninode setting is way too high. You are using around 2300 but your set for 13592. Reduce this to maybe 4092 tops for now.

Here is what I generally start resetting, but remember do NOT change alot of parms. Change just 1 or 2, then monitor and see if you need to tune more:

dbc_max% .. fine leave it most I'd go is 12
dbc_min% .. reduce it to 5
maxdsiz .. I'd leave that for now
maxssiz .. May be too big, might be able reduce that to 80Mb.
npty/nstrpty/nstrtel .. set this value up to 200 for all (Just cause default is probably too low)
shmmax .. You have it set for 4Gb, I'd bring it up to 10Gb

vx_ninode .. set at default, I'd change that to 40,000 to 60,000 to start

Adjust dbc_max & min..and those 3 tty/pty parms and rebuild kernel & monitor.

If it's running good...then stay there.
If you feel you need to tune again maybe try
changing ninode & vx_ninode...rebuild kernel & monitor.

Again, if things are running good stay there. If not then think about adjusting shmmax...monitor.

You will have to monitor the box and determine which change to make and in which order. Do not take what I said as cast in concreate...you decide what and when to make it....

..I think it was Stephen Cuillo who said that 'tuning is more art than science'.

Regards,
Rita

[Dennis Handly]

>Rita: I can't download this.

This is a known problem with the forum, .zip and IE.

[Rita C Workman]

Thanks Dennis !

That is the disadvantage of not being regular in the Forums...you miss stuff.

Rita

...I am so going to miss this site...

[RogerVI]

Thanks