Multi-Processor Systems vs Single Processor systems

In general, is it better to run Weblogic on a fast single processor system
or on a multi-processor system where the individual cpus are less powerful?
I am assuming that the platforms are WINTEL and all other things (memory,
disk channels etc) are equal.
What are the licensing implications of one philosophy over the other?

Jim Ewing wrote:
>
In general, is it better to run Weblogic on a fast single processor system
or on a multi-processor system where the individual cpus are less powerful?
I am assuming that the platforms are WINTEL and all other things (memory,
disk channels etc) are equal.You'll hate me for saying this, but it depends on your application and
your client load.
I'd suggest that you run a load test against both systems and compare
the results.
>
What are the licensing implications of one philosophy over the other?You pay for WLS by the number of CPUs.
-- Rob
Coming Soon: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
http://learnweblogic.com

Similar Messages

  • Possibility of connecting multiple BW systems to single ECC system

    Hi all,
    I have a requirement in my company to connect multiple BW systems to single ECC system. Would like to confirm whether this may not be supported by all BW extractors in particular the delta mechanism?
    For logistics extractor in ECC side in RSA7 it stores BW System as target which shows they support multiple BW systems as target, but for FI extractors which keeps delta timestamps in BWOM2_TIMEST table, it doesn't store the target system. I'm afraid if we connect multiple BW systems to single ECC system, some of the delta records might go to one BW system and some others go to the other BW system when we execute delta load in both BW systems.
    Thank you very much in advance.
    regards,
    arie

    Hi,
    You can very well connect multiple BW systems to single ECC system and you will not miss any delta as well. In the source system for each delta data source a delta queue is maintained for each target system.
    for e.g. I have two BW systems ABW and BBW connected to AEC system then for 0FI_AP_4 data source we will have DQ1_ABW and DQ2_BBW as two different delta queues (I am not following any naming conventions, actual names will be as per the target system logical name).
    The settings maintained in BWOM2_TIMEST table are across the system and they define some global settings e.g. till what time the FI data should be extracted in BW system, for e.g. the time maintained is 2.00 AM then though you do extraction from multiple systems same data will be extracted till next time interval occurs.
    In summery you can very well connect multiple BW systems to a single ECC system.
    Regards,
    Durgesh.

  • Regarding Connecting Multiple BI Systems to single R3 System

    Hi,
    We have perform R3load based system copy of our BW Systems dev/qa/prod.
    Now, we have D4D/D4T/D4P as one new BW Landscape
    we have D2D/D2T/D2P as original BW Landscape
    We have R8D/R8T/R1P as R3 Landscape.
    Original BW Landscape is already connect to R3 in RSA1->Source Systems
    Now I need to connect new BW Landscape to existing R3.
    like D4D to R8D, D4T to R8T respectively.
    I made new BWREMOTE user in these new BW Systems & when I try to delete
    existing Source system that came as part of system copy. It says to
    delete transfer rules,PSA etc also.
    When I try creating a new source system from New BW to R3; it says
    source system already exists.
    Request you to kindly advise mechanism of same so that both bw systems
    can connect to single R3 without any issues.
    When I say restore on new bw system; It says "Connection DI is used in
    R3_R8T10 Sourcesystem as a connection BW_D2T100 to BW". Delete this.
    So, basically if I restore source system in D4T, It impacts existing
    source system in D2T.
    Thanks,
    Sanjay

    Hi Sanjay,
    Instead of deleting exising source system, try to change logical systems and run BDLS job. It will fix problem.
    Check: [Conversion of Logical Systems |http://help.sap.com/saphelp_nw70/helpdata/en/33/c823dbaea911d6b29500508b6b8a93/frameset.htm]
    Srini

  • Two BW systems to single source system

    Hi,
    I have created sandbox and copied BW production now its BWQ.
    Now we want to connect BWQ to R/3 PRD as source system. But from RSA1 when I try to restore PRD it will delete the connection to BWP and creates to BWQ. But I want both connections to work.
    How this canbe done?

    hi,
    not sure, try check following links, in r/3 side transaction sbiw
    http://help.sap.com/saphelp_nw04s/helpdata/en/7a/27bcf087c7464db8b95eaa717b6e6a/content.htm
    http://help.sap.com/saphelp_nw04s/helpdata/en/b1/259b4e801a0a48b744e39599f636cd/frameset.htm
    i have no access to system now, not sure whether there is authorization object for datasource in bw side.

  • Convert dual stack systems into single stack

    Hi all,
    need some info regarding the procedure to convert dual stack systems into single stack systems.

    Hi Ambarish,
    check this below discussion... I hope raising an OSS will not be useful in this case...
    Dual stack to Single stack migration
    Regards,
    Chandru

  • System showing two processors?

    Mobo: 845PE Max-L (MS-6580)
    Proc: P4 3.06GHz 533MHz FSB
    DDR:  1GB 333MHz (2 x 512MB)
    OS:   XP Home SP1
    Vid:  NVidia Ti4200
    Snd:  SBLive! 5.1
    HDD:  Maxtor 80GB 7200 ATA-133
    This is a new system I finished building yesterday. The entire process was problem-free and everything is working great. However, Device Manager shows two processors installed. So does System Information. Even PCPitstop.com online testing shows two processors. Is this a bug or am I just ignorant about the P4(this was my first P4 build).
    Thanks for your time...
    Gene aka flyingVman

    Quote
    Originally posted by Rob454
    Its a good thing to show off :P
    i agree for right now, but as more and more multi-threaded applications come out, it becomes more and more useful

  • Can I upgrade the processor on my laptop? If so, what processors are compatible for my system?

    I have an HP Pavillion dv6-2150us, which runs an Intel Core i3 @ 2.13 GHz, 8 GB RAM and Windows 7 Ultimate 64-bit.  Can I upgrade this processor and if so, what processors are compatible to this system?

    First think about memory and an SSD drive. Laptop processor upgrades are a big hassle and not cheap. 

  • Upgrading from single processor to multi processor

    I am looking for information on upgrading a 7.3 Oracle from a
    single processor to a multi processor. I will be putting in
    another processor in my server and would like to know how to get
    Oracle to use this second processor. I know that I need to
    upgrade Windows NT to multiprocessor first but what do I need to
    do after that with Oracle.

    I'm not certain why that would be the wrong boards. I guess HP has the wrong boards posted on their product's support site at the link below.
    http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?lang=en&cc=us&prodTypeId=12454&prodSeriesI...
    When I clicked on Support Forum, that is where it took me.
    ↙-----------How do I give Kudos?| How do I mark a post as Solved? ----------------↓

  • Speed of processor is being limited by system firmware after BIOS update

    Hello,
    I have updated the BIOS of my G510 to the latest version, which is 3.09. But after this update, I have noticed "The speed of processor is being limited by system firmware" entries at the Windows System event log. They are like that:
    "The speed of processor 0 in group 0 is being limited by system firmware. The processor has been in this reduced performance state for 5 seconds since the last report."
    I'm getting this message for all the cores, from 0 to 3.
    Why is this happening? And what can I do, should I downgrade the BIOS to the previous version?
    Thanks

    Hello pka4916,
    You’re having a problem with the speed of your processor.
    Do a hard reset.
    Turn the computer off.
    Remove the power cable and the battery.
    Hold down the power button for 15 sec while booth power sources are removed.
    This should reset the hardware in the computer.
    As you turn it back on tap the F10 key. This will load BIOS setup utility.
    Press F9 to load defaults.
    Press F10 to save and exit.
    When the computer boots back up, check to see if everything is working.
    If the problem is still not fixed Try to roll back you BIOS to a version that was working correctly.
    Here is a link that will walk you through the steps.
    Let me know how everything goes.
    Have a good day.

  • How to read system memory size, processor speed of a system

    Hi all,
    How to read system memory size, processor speed of a system and how to read how much of it are in use in a running system. (using java)
    any help would be great.
    -thanks

    How to read system memory size, processor speed of a
    system and how to read how much of it are in use in a
    running system. (using java)Using Java: not at all. You'll need JNI.

  • Limiting WLS to a single processor on a multi-CPU machine

    How can I configure WLS to only use a single processor on a multiprocessor
    machine? Will launching with green threads do the trick? Is there some way
    to permit the use of native threads but to exclude a set of processors?
    How do I do this under WLS318? WLS451?
    Any help is much appreciated.
    -Adam Galper

    Adam Galper wrote:
    How can I configure WLS to only use a single processor on a multiprocessor
    machine?It's os-dependent, but most will allow you to bind a process to a single
    or set of cpus.
    Will launching with green threads do the trick?Yes.
    Is there some way
    to permit the use of native threads but to exclude a set of processors?
    Yes.
    == Rob
    >
    How do I do this under WLS318? WLS451?Any help is much appreciated.
    >
    -Adam Galper

  • Diff. between running java code in a single processor vs multiprocessor

    Hi,
    This is a general question and I tried to find answer for it, but couldn't find so came here as usual.
    When designing a new Java project do we need to consider whether the application will be running in a single processor/multi processor. Does our design affect assigning thread to different processors? if so what the steps that we need to take, so that my application makes full use of multiprocessor. What is the difference in desinging application for single processor and multi processsor? Recently we had a problem in which our application makes use of only 2 processor out of 16 and I have no answer for it.
    Thanks.

    I have some good amount of experience working with
    multi threaded java program and i know about the
    overhead involved and overkill in multi threaded
    programs.
    let's assume that for the moment (many beliefs held about MT and MP computing are wrong, including possibly some or all of my own).
    Will design vary depending whether we deploy it in a
    multi-processor / singe processor CPU ?
    If it was correctly implemented before, no.
    But keep in mind that instead of receiving subsequent timslices threads can in an MP environment run truely in parallel.
    If threads depend on the timing of other threads (ugly but we all know it happens) things can go wrong.
    Of course as with all MT issues they tend to go wrong only after the product has passed all tests and has shipped to customers.
    If it's the job of the operating system to assign
    threads to different processor, then it doesn't
    matter whether I design keeping in mind single
    processor or multi processor CPU? OS willRead above. It SHOULD NOT matter, if your design is good.
    intelligently give different threads to different
    processor to make use of multiple processors right?Either the OS or the hardware. In an MP system there may well be dedicated hardware to do CPU allocation rather than it being handled by the operating system.

  • Are a single ns-slapd process and its 32 LWP (light weight processes) limited or bound to a single processor?

    ns-slapd and its LWP sub-processes seem to appear as a single process in some tools. Does this limit them to only being able to use one of the available processors on a multi-processor system, either due to lock management or for some other reason?
    W see all the CPUs on a four processor system receiving activity, but the system never exceeds 25% utilization, or, the total of a single CPU.
    Is this a limitation, or are we just not using it much yet?

    <i>Are a single ns-slapd process and its 32 LWP (light weight processes) limited or bound to a single processor?</i>
    The short answer:
    No, and you shouldn't need to worry about it anyway.
    The long answer:
    The configuration LDAP is never a bottleneck in an iAS system. You could have hundreds of iAS servers running off a single instance and a single processor LDAP would still be able to handle the configuration requests easily.
    If you also use your LDAP server as an authentication repository, you should size your LDAP server based on your authentication needs. But even if you are using iDS as an authentication store there are several other factors to keep in mind.
    1. iDS scales pretty effectively up to about four CPU's for the most important operations (i.e. reads)
    2. Unless you are running some unusual application server hardware, you will run out of disk i/o long before you run out of CPU power.
    3. If you have any significant load on the directory server you should probably offload it onto its own server (or partition) anyway so that it doesn't steal excessive amounts of memory from that appserver.
    4. Similarly, if you are putting a lot of stress on the directory server with authentications, you should consider tuning the directory server for those authentications.
    I guess a little more detail about your application server architecture would be helpful in figuring out why your CPU doesn't exceed 25%. I strongly doubt that it has anything to do with slapd, however.

  • Long full GC pauses, 1.4.2_02, single processor

    HotSpot 1.4.2_02, Solaris 9, single processor
    We've developed a telecom application which requires low latency in response to network events. I've been observing fairly long full GC pauses between 0.5 and 2.0 seconds, which is unacceptable for our application. Minor GC pauses are quite brief, and acceptable, but only rarely occur after the system is up and running for some time. Full GCs happen regularly at 1 minute intervals.
    I've read several web articles on tuning GC, which mostly focus on using the new GC algorithms available in 1.4, such as CMS. I've tried -XX:+UseConcMarkSweepGC, but haven't observed any reduction in GC pause times, probably because our application runs on a single processor server.
    I'm going to dig into young/tenured ratios next, but, before I do, any advice on how best to optimize full GC for low latency on a single processor? I'm willing to do more frequent full GCs, and accept a throughput penalty, in exchange for <200ms full GC latency.

    Hi
    Any chance u using RMI? This regular 1 min interval thing is seldom seem. Please add -XX:+DisableExplicitGC, other flags include the setting the rmi gc time to a large value, but you are good with disabling System.gc
    Did u use the -XX:+UseParNewGC too? Usually -XX:+UseParNewGC -XX:+UseConcMarkSweepGC goes together.
    Also, _08 is the latest. There is a number of fixes that went in GC.
    Tuning... the steps i usually take
    1. Use default GC, -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintTenuringDistribution
    2. Size the generations 1st.
    3. Choose collector, in this case shld be "Usually -XX:+UseParNewGC -XX:+UseConcMarkSweepGC" but u may be good with others too. It depends.
    Hope this helps.

  • Can I add a processor to my single 1.8 Ghz, making it a dual?

    Can I add a processor to my single 1.8 Ghz, making it a dual? If so, where can I find installation instructions to do that? Thanks.

    I've heard from various places that the G5 boards (excluding the 1.8GHz G5, 600MHz FSB) share a common design. However, the SP ones lack a physical socket for the second processor even though the board traces are there. That opens up possibilities if you're adventurous.
    I recommend selling your current G5 and using the money towards a dual or quad G5 if you're not too attached to it. It's the simplest solution and would result in a faster system overall.

Maybe you are looking for