Hi everybody,
Some more questions for everybody. Feel free to answer
. I have a lot of questions on CPU VPs and performance. Here goes:
some background info:
OS -AIX 4.1
Informix : 7.13 UC1
Number of CPUs - 8
1. Is it true that we can configure only one NETTYPE connection on the
CPU VP ? Currently, both my NETTYPE connections ( SOC and SHM ) are
configured on CPU VPs. If my assumption is true, does INFORMIX
automatically force the second NETTYPE connection to a NET vp ?
2. I expect about 400 connections through shared memory and 200
through SOC. Which of the connections should be configured through CPU
VP ? The ODS Performance guide suggests that if # of connections >
350, then performance would be improved by assigning a NET VP to it.
Any comments ??
3. An onstat -g sch shows some of my CPU VPs to be a whole lot more
busy than the others. What determines the usage of a CPU VP ?
4. Okay, a question not related to CPU VPs. At the end of an onstat -u
output, we see the following line:
# active, # total, # concurrent.
If we actually count the total # of sessions, it matches with the
"# active". Where does the "#total " and "# concurrent" come from ?
5. Okay, I am going to cheat again and ask another non-CPU VP question
onstat -g ioq , shows me a Queue named "kio". I do not think that this is related to the KAIO. Matter of fact, the total number of these
queues seems to equal the NUMCPUVPS. Comments ??
No more for now.
Thanks in advance.
Sujata