by On AIX, processes are dynamically allocated priorities
depending on their consumption of resources.
I find that the dataserver processes at the site I am
working at have priority numbers much higher than user processes
such as vi and ksh. While this may be desirable to some degree
because interactive sessions need to run fast, I see that sometimes
the dataserver processes have priority numbers almost twice as high
as the user processes. Since sybase performance is critical at the
site, we may even be willing to lose some response speed of interactive
sessions in a trade-off by setting the priority of the dataserver
process to a low fixed value in AIX (which means it will get a higher
preference.) When this was suggested the first question that came up
was: If it was so simple, why wouldnt have Sybase done it in a
start script for AIX ?
Does anyone know why the dataserver process is not set to a fixed
low priority number ? Does anyone know how it would affect the
performance of the server ?
Any information in this regard will be useful.