Experimental Physics and
Industrial Control System

Benjamin Franksen <[email protected]> · Thu, 12 May 2005 22:51:29 +0200

On Wednesday 11 May 2005 01:13, Jeff Hill wrote:
> > The culprit was a misbehaving channel access client.  Somehow
> > it connected tens of thousands of channels which increased the
> > memory usage by CA.  When it was stopped the memory on the
> > IOC was not returned.
>
> [...]
> > Is this the expected behavior of CA?
>
> Yes CA uses free lists by design, and CA does not implement
> quotas to stop a badly behaved client application from
> introducing unacceptable load should it create too many channels,
> subscriptions, etc.

Maybe it would suffice to deallocate free-list memory as soon as a large 
enough portion of it is unused?

Ben

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System