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NW7.0 EP7 SP16 - Portal Performance

Hi all,

Is there a tuning parameter that can be set to specify to the portal how many hardware CPUs to use?

We are running on SUN Sparc Solaris 10 in a zoned vitual environment. Thanks!

Any other performance insights will be greatly appreciated too....

Thanks, Neeta

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 18, 2009 at 09:20 PM

    i always make sure in any implementation the logs are chopped....check this one

    Chop your logs!

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 19, 2009 at 10:01 PM

    The general rule of thumb is N+1. N is the number of server nodes that you have configured in your Java environment pluss one is a good start. I usually add more for other major applications such as a Database on the same server and leave at least one to run the core O/S.

    Example: A Distributed Production server that has 5 Java server nodes configured to communicate to the Dispatcher should have at least 6 CPU cores. This is a bit old school since the SAPJ2EE does thread across all the available CPU's though- but a good rule anyhow.

    Hope this helps.

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  • Posted on Feb 20, 2009 at 05:59 PM

    Hello,

    I'm on the same team with Neeta.

    What is going on is we have a new Sun server with a Niagra processor that uses their "shift multi threading" to make a single CPU with 8 cores appear as 64 cores. This server is then zoned. Right now there are 5 zones on the host. Two of them are an oracle database and an ERP ABAP system. The other 3 are an oracle database with a netweaver portal with an additional dialog instance. There may be additional zones loaded on this host later. So each system as much less resources available to it than it currently thinks it has regarding CPU and RAM. So our concern is that perhaps we need to "scale back" how many CPU's the various applications think are available so they don't over do things and create extra overhead. Were also concerned about the JVM's heap being partly paged out in Solaris and are not sure how to prevent that.

    We will look at the log chopping as well.

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