Process table overflow

[pfilippone]

SCO 4.2

SCO server slow response to users, appears 'frozen'
Rebooting helps for a while.

Getting this message in /usr/adm/messages:

CONFIG: newproc - Process table overflow (NPROC = 100 exceeded)

Are there any tweaks I can do to reduce/eliminate this error? Or is it a simple matter of too many processes trying to run? I suspect too many users are trying to connect to the server.

Any help is appreciated

 

[stanhubble]

NPROC is a tunable kernel parameter.
if you have enough memory available you can increase it.

 

[pfilippone]

Stanhubble,

Your answer brings me to another question or two.

I feel dumb asking this, but how do you check how much system RAM a SCO box has?

And do you happen to remember where I can find the file that holds NPROC param?

I know I have to relink the kernel after changing that param, and to reboot.

Thanks

# netstat -m
streams allocation:
config alloc free total max fail
streams 160 45 115 261 56 0
queues 864 222 642 753 286 0
mblks 1845 148 1697 7794126 532 0
dblks 1476 148 1328 6201527 487 326
class 0, 4 bytes 296 31 265 128863 49 0
class 1, 16 bytes 296 16 280 265062 134 0
class 2, 64 bytes 296 17 279 4859041 280 232
class 3, 128 bytes 264 64 200 539706 211 43
class 4, 256 bytes 136 20 116 407979 108 51
class 5, 512 bytes 72 0 72 870 25 0
class 6, 1024 bytes 52 0 52 5 1 0
class 7, 2048 bytes 52 0 52 1 1 0
class 8, 4096 bytes 12 0 12 0 0 0
total configured streams memory: 436.09KB
streams memory in use: 26.84KB
maximum streams memory used: 121.64KB

 

[stanhubble]

sar-r will tell you how much available memory there is.
idtune is the safest way to change kernel parameters otherwise edit /etc/conf/cf.d/stune.

 

[ScoobyDoobyDoo]

To find out how much physical memory is installed on the SCO Computer itself then this should work

tail -100 /usr/adm/messages | grep mem:
(Have a look at /usr/adm/messages - it keeps all the interesting start up stuff about the system) ...