CPU limitation for a userer

hi
how do i limit/assign a CPU / core to a user?
My current Server is running with 2.47 load i want to limit zimbra user on it to increase Zimbra performance.how do we do?
Regards

An application will not benefit from multiple CPUs unless it was designed to do so. A single process can only run on one CPU. You can use the taskset command to set CPU affinity when starting a program. From an administration standpoint I think this practice is nonsense.
If you need to limit the number of CPUs to comply with licensing you can edit /etc/grub.conf and add an appropriate kernel prameter, e.g. maxcpus=2.
I'm not aware that there is an option to partition your CPU or set CPU affinity per user. Perhaps machine virtualization might be work-around.
The following might be interesting: http://www.ibm.com/developerworks/linux/library/l-scheduler/
To maintain a balanced workload across CPUs, work can be redistributed, taking work from an overloaded CPU and giving it to an underloaded one. The Linux 2.6 scheduler provides this functionality by using load balancing. Every 200ms, a processor checks to see whether the CPU loads are unbalanced; if they are, the processor performs a cross-CPU balancing of tasks.
A negative aspect of this process is that the new CPU's cache is cold for a migrated task (needing to pull its data into the cache).
Edited by: Dude on Jan 27, 2012 1:20 AM

Similar Messages

  • HT4759 what are the limitations for PC users using iCloud?

    I am considering iCloud for storing music, photos etc.  Are there any significant limitations for PC users?  Our family employs a mix of Apple and PC devices.

    Of course, iCloud does a better job on Apple devices like iPhone, iPad and Mac, because it seamlessly works with the pre-installed apps like Mail, Contacts, Calendars, Reminders, Notes etc., but you could also use some of the features on a PC. This guide shows you, how you could set up iCloud on a PC: http://www.apple.com/icloud/setup/pc.html
    On a PC you sync iCloud Mail, Contacts, Calendars, and Tasks via Outlook, snyc Bookmarks and Photos.
    Some other Services like iWork apps (Numbers, Pages and Keynote) or Find My iPhone are missing, but accessible through the website www.icloud.com (new Chrome or Firefox needed)
    By the way, iTunes is still needed for managing your music library.

  • Increasing Email Size Limits for some users

    Hi All,
    For some users (management) i needed to arrange that they are able to send bigger files then the default 10MB limit to each other.
    I used this procedure to do so,
    https://www.simple-talk.com/sysadmin/exchange/increasing-email-size-limits-for-your-high-profile-users-in-exchange-2010/
    In a nutshell:
    Set Global Transport Org. Config to 200MB
    Set Transport Send and Receive connector to 200MB
    Created a Distribution group adding the MT members and me (for testing)
    Created a transport Rule for the 10MB limit for all users and exception for the distribution group
    (Believe me, i am not happy with the 200MB size limit)
    All seems to work but i have one issue that i cannot tackel or maybe it is by design.
    -Managemant can also send big files to all
    users who do not have this privelige, this is not someting i want, sending 100MB+ attachments to over 150 users.
    Is this by design or do i mis something?
    Thanks,
    Ron

    Hi RonGielgens,
    Attachment size in exchange has to be set on
    Global settings
    Connectors (send and receive connectors)
    Mailbox
    The global settings will affect all the others. of course connectors will affect specific servers and mailbox one user. You have to set the global to the absolute max size you want to allow in your organization.
    after you do this you will need either to set the 10MB on each mailbox
    Get-Mailbox | Set-Mailbox -MaxSendSize 10MB -MaxReceiveSize 10MB
    Then change the limit on specific mailbox
    or another way is to create a transport rule that will reject the email if the attachment size it > 10MB unless the sender/recipient is the required user or group.
    so basically create 2 transport rules
    1. reject messages sent to anyone with attachment > 10mb unless the recipient is userX
    2. reject messages sent from anyone with attachment > 10mb unless the sender is userX
    Normal case it should not allow.
    Thanks, MAS
    Please mark as helpful if you find my comment helpful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

  • Setting Resource limits for Oracle user in 11gR2

    HI Friends,
    I am using Oracle Database 11g R2 on windows.
    My Application connects to the database using a schema (user1). Some times the application user sessions makes the Database usage / CPU/ IO high and affecting the performance of the Database.
    I would like to set some Limits on the Resource usage (Database and System resources) for those Application user schema (user1) to avoid the bottleneck on the Database and Server without affecting the usage of the Application on Transactions.
    How can i achieve it?
    Regards,
    DB

    839396 wrote:
    HI Friends,
    I am using Oracle Database 11g R2 on windows.
    My Application connects to the database using a schema (user1). Some times the application user sessions makes the Database usage / CPU/ IO high and affecting the performance of the Database.
    I would like to set some Limits on the Resource usage (Database and System resources) for those Application user schema (user1) to avoid the bottleneck on the Database and Server without affecting the usage of the Application on Transactions.
    How can i achieve it?
    Regards,
    DBis application 3-tier like below?
    EndUser<=>browser<=>WebServer<=>ApplicationServer<=>DatabaseServer

  • Licence limitation for 500 users

    we use acrobat 9 pro. we have loaded pdf forms toour site. these forms are for our customers use. we've built a button on the forms that submits the form, i mean, it
    transmits the data that our customer typed on the form to our site. do i have to use a special license to do that? does your answer
    change if i use a rights extended form or a non extended right form?

    a) The limitation only applies to extended rights documents
    b) The limitation only applies to extended rights documents
    So you can use a submission button to your hearts content and not reach a limit UNLESS you have that same form with the extended rights. Once you've done that to a form you can only collect 500 instances of date whether it be through receiving the filled in form, hard copies of the form or people using a button to submit the form.

  • Fireworks Limitations for Photoshop Users

    This little bit of reading might be of interest to those more accustomed to the interactivity that used to exist between Photoshop and Image Ready.  This comes directly from the Fireworks manual.
    Individual layer masks convert to Fireworks object masks. Group masks are unsupported.
    Clipping masks convert to object masks, but their appearance changes slightly. To maintain appearance but lose editability, select the Clipping Masks preference.
    Blending modes for layers convert to blending modes for Fireworks objects, if corresponding modes exist.
    Layer effects are retained by default. If you prefer to convert these effects to corresponding Live Filters, select the Layer Effects preference. Note, however, that similar effects and filters might differ slightly in appearance.
    The first alpha channel in the Channels palette converts to transparent areas in the Fireworks image. Fireworks does not support additional Photoshop alpha channels.
    All Photoshop color depths and modes convert to 8-bit RGB.
    Adjustment layers are unsupported.
    The help manual should have made clarifications.  Especially if your were forced to use Fireworks.  I speak to those having used a Photoshop to Image Ready workflow for all those glorious years when a task was easier.
    1.  Say good bye to your Group Masks.  Object masks are not as powerful, or useful, as layer masks are in Photoshop.
    2.  The appearances of clipping masks change drastically.  Do not even attempt to use an image if you have a clipping image
         and expect it to be exported for use as a web graphic.  Fireworks muddles the final image with blurry edges.
    3.  In any case where your Photoshop image uses blending modes expect that Fireworks will not have the corresponding mode.
         Do expect the results to be not as clear as in the original image.
    4.  Layer effects ARE NOT retained, they are MERGED into the layer.  Open a Photoshop created image using layer effects (drop
         shadow, stroke, etc.).  Your effects have become merged into the latter.  Never, never save your PSD or TIF file from within Fireworks.
         You will lose all editability, FOREVER!
    5.  Fireworks Live Filters are a sorry, sorry instance of the powerful layer effects of Photoshop.  Each and every instance tried to date has
         shown Fireworks' iteration of filters to be different from those in use in Photoshop.
    6.  If you use your own patterns in Photoshop say good-bye to them.  Fireworks gives you no way to use your own.  Only a limited
         subset of those pre-packaged with Photoshop.
    6.  Since Fireworks does not support adjustment layers, masks, paths, etc., then what happened to cross program support and
         interactivity which Adobe praises?
    Why in tarnation does Fireworks support metadata in a web graphic?  Yes, the PNG file format allows for this.  Export a TIF or PSD containing metadata information from Photoshop to a PNG file.  Look at the file in Bridge.  It has no information.  If you do export a set of images using a batch operation you will find that some of the new PNG files cannot contain metadata.
    View the generated PNGs in Bridge.  Apply a metadata template.  You will find that some of the files will not accept the template.  You will have to individually re-export the image.  The reason I mention this normal Photoshop to Bridge workflow is because Fireworks' Help is touting it without explaining that not in all cases does it work.
    If you are coming over from Macromedia then you are used to a what was once an extremely good program.  Say good-bye to it.  If you were used to Image Ready — Good Luck!  At least it never crashed for no reason.  If you are new to Adobe then expect limited 60 day support and a company looking only at your bank account.
    Adobe needs to go ahead and kill this app and include its best features into Photoshop as they have done in the past.  Then get back to allowing prototyping in Photoshop and web graphic generation as an export feature as it once was!  I don't need two prototyping programs.  What I do need is a simple, easy method of getting my Photoshop designs to the web.

    Yes, Linda Nicholls is right. You will find FW better than PS.
    I also use FW only for anytype of graphics.

  • ISE limitation for concurrent user (same user)

    Dears,
    I have cisco ISE 3355 version 2.0.4.018 my question is how can I limit the authenticated user to access only two devices by his username and password.
    where I have cisco ISE integrated with AD for internal employee that access internal SSID and I need to limit employee access for two devices only (PC and Phone)
    So anyone can help me??
    Regards,                  

    The current ISE release 1.1 doesn't have a feature that allows to limit of concurrent user sessions (either Guests or regular 802.1x users) as the ACS 5.3/5.4 does. However, I guess this feature is scheduled for release, ISE 1.2
    Jatin Katyal
    - Do rate helpful posts -

  • HT201304 How can you set usage limits for a user of an iPod touch?

    Would like to allow x minutes of usage per day.

    See:
    time of day restriction for ipod touch: Apple Support Communities
    Parental Control/Game time limiter: Apple Support Communities

  • Email Accounts now have limits for new users

    Just a quick post to save other Partner having the same experience I've just had.
    Apparently OpenSRS now has limits set on sending emails for new email addresses. It doesn't matter whether it's an existing domain/website, as soon as they set up a new email address in the BC system, they are limited to a miserly 10 emails/day. This will slowly work it's way up to 25 - 50 etc (see screenshot from support of one of my client accounts - http://screencast.com/t/Pp1oKRkS5I).
    I've had 2 different clients contact me in the last week about not being able to send emails and after days on support tickets and an hour on chat, I have found out that there is indeed a limit. It seems that if you contact support and show your displeasure, they can contact OpenSRS and get the mimit increased (just not immediately).
    I looked like an idiot telling my clients that there must be an issue with their Outlook setup, when all along the issue was with BC.
    Maybe I should change them all over to Google Apps.
    Jarrod

    Hi Brad
    That screenshot came from Support. It's not something we have access to. I'm not sure if it's pure coincidence, but I had 2 different clients with the same issue in the last week. From what support said, OpenSRS has made a few changes recently. Just something to be aware of.

  • Shell Limits for Oracle DB 10g under SLES 9

    Hi.
    We installed SLES 9 and want to install now Oracle DB 10g R2.
    We are at configuring Linux for the installation process using this guide: http://www.oracle.com/technology/pub/articles/smiley_10gdb_install.html#shell
    At the linked part (shell limits) is explained how to set the shell limits for the user oracle. And there are two parts, one for SLES9 and one for RHEL4.
    But the files profile.local and csh.login.local are not existing! But the files from the RHEL4 section (profile and csh.login) exists.
    Is this a failure in the guide? Are the two parts from RHEL4 and SLES9 switched?
    Or it is right that we have to create these files by setting these shell limits??
    Thanks for answering.

    Hi.
    I usually create these files on the Suse box. These files are never there on either x86, ia64 og x86(64).
    rgds
    Kjell

  • How to enable detail view interactive report as default for public user?

    Hello all,
    I'm currently developing a search results page.
    I'm trying to do a nice view instead of a default table like view from the interactive reports. So in this case i enabled the detail view so i could make fancy designs.
    all worked well and looked neat but however when i pass value from my search page using IR_ROWFILTER and clear the results page using page_no,RIR, it brings me to the interactive reports result page with the default table like view.
    i have to press the detail view to get it. i tried saving it as default but it wont work. this issue is for public user.
    if i make the page requires authentication, and save the detail view as default i would not have any problem. i could search and it will straightly bring to the detail view of the search page.
    of course the other reason i found is because im using the IR_ROWFILTER and clearing page using page_no,RIR..without it,it works well but i need it coz im doing a a search result. i need to send search text from another page and put it in the filter in the search page. i would need to use RIR to clear it for searching again.
    is this a limitation for public user? it doesnt happened for authenticated user though..
    how can i make this view as default for public user?

    T101_cyberdyne wrote:
    how can i make this view as default for public user?
    Flip the report into Detail view on page load using an Page Load dynamic action with the following Execute JavaScript Code true action:
    gReport.data.view('DETAIL');
    I'm trying to do a nice view instead of a default table like view from the interactive reports. So in this case i enabled the detail view so i could make fancy designs.
    Do you really need this to be an IR? Other than the detail layout, do you require any of the interactive features? If not, try using a standard report with a custom report template.

  • HP Load Runner: CPU usage for this load generator has exceeded 80%

    Recently I have downloaded LR 12.1 and installed.   Observed error  CPU usage for this load generator has exceeded 80% when executing the test with 5 user load using AJAX Trulcient IE script. For each virtual user in the script one TcWebIELauncher.exe hads been initiated and running during the test execution. Each TcWebIELauncher.exe instance is taking min 14% CPU utilization and CPU utilization for 5 users is around 75% at the time of test execution.  What is the reason behind this high CPU utilization for this less user load?. Please suggest how to handle and fix the issue.
    regards,
    Sreekanth

    You can download Trail version of Loadrunner from HP site.  That's true. all HP testing tools products are license based.
    i) If you want to use for SAP applications, you need to have SAP protocals (SAP GUI and SAP WEB). So how this licenses works is, if you want to buy 50 Vusers for SAP it cost you around $ 32k and it depends on company discount. so you need to work with HP Sales team to get the quotation then based on no of Vusers and you can procure it.
    ii) As for as i know, there is no  HP LR integration with Solution Manager.
    let me know if you have any questions.

  • Is it possible for several users to share the same user ID and password?

    Is it possible for several iPlanet Calendar Server users to use the same user
    ID and password and to use the same calendar to make changes? If this sharing
    is possible, are there any limitations for multiple users updating the same
    record, and does any database locking take place?
    Yes, more than one person can use the same user ID and password and update the
    same record. The database code uses the First In First Out(FIFO) rule, where
    only one person updates a record at a given time. So, if two users are
    updating the same record, the changes made by the user who updates the record
    last will get written to the record.
    <P>
    If the deployment requirement specifies a shared calendar, where users do not
    have their own users IDs, you can set an appropriate Access Control List(ACL).
    It is also possible to make the calendar publicly writable.

    Hi matrixxzero,
    In my opinion, you want to use the same Apple/iCloud/iTunes ID on both devices. That is exactly what iCloud is designed for - to keep devices with the same Apple ID in sync. Your Mail, Contacts, Calendars, Reminders, Safari Bookmarks, Notes, Photo Stream photos, and Documents will all be kept in sync if you have those options set up on both devices under Settings>iCloud.
    Unless you have some reason to not want to have the same information on both devices, then going with a single ID on both is the way to go.
    Cheers,
    GB

  • How could i get the kernel and user cpu usage for each process

    Hi all,
    In order to monitor the system CPU usage, I would like write a script to gather the kernel and user CPU usage for each process, like the prstat or top does. As always missing the shortlived kernel usage, prstat or top cann't get the precise CPU usage. I checked with the dtrace syscall, proc and fbt provider, but don't get which one is useful.
    Please provide your comments and suggestion.
    Thanks in adv

    mail2sleepy wrote:
    As I've studied the "dtrace" for a while, and seems Sun gives a pretty high score on this new feature.....I do want to know whether there's some probe can work for it, like writing a "dtrace" version prstat.You can write a prstat without dtrace. Because that's just polling at specific intervals and reading some process structures from /proc. You could have dtrace fire a probe every 5 seconds and read the same thing, but it wouldn't really be using any features of dtrace. Trhying to write it "in dtrace" doesn't make much sense.
    What you could do that would be harder via other methods is to fire a probe at process exit that displayed the process information including total CPU time. They could print exactly when processes exited. Doing that without dtrace would be very difficult.
    Darren

  • Purchase order increase limitation for user

    Hi Experts
    How can increase the purchase order limitation for the perticular user
    which transaction code have to be run to change the purchase limitation
    Regards
    Piroz

    Hi
    Thread closed, I got it
    Thanks

Maybe you are looking for