Question about virtual cores

Sorry if this has been asked somewhere else.  I tried to find the answer but am still confused.

If I have a virtual host 24 hearts with 3 under VMs.

I guess the best way to ask my question by describing two hypothetical scenarios.

Scenario 1: I assign 1 virtual kernel for each machine.

Scenario 2: I assign 8 Virtual cores for each machine.

Each VM will have more CPU power in scenario 2?   Now, my assumption is that each virtual machine will be allocated 33% of the CPU in both scenarios, but I fear that scenario #1 will leave a lot of unused CPU power.

Thank you.

If I understand correctly, in other words, the amount of GHz... MHz... etc available to VMS is based on the value of the shares, so, based on your two scenarios, each will have 33 percent of the shares. Performance of virtual machines depends on how applications behave in MP. VMs CPU scheduling also changes with the number of vCPUs configured.

Testing is the best way to answer this question.

Tags: VMware

Similar Questions

  • Question about virtual disk

    I have a qustion about virtual disks

    I assigned 5 GB on a virtual disk. Then I realized that I need more space, so I changed to 20 GB.

    When I have energised the VM, it always complained not enough space. Even if I 'clearpart-set' in the startup script.
    I ended up remove the virtual disk and create a new one to solve the problem.

    "It seems that this partition table/information is always on the disc and kickstart' cleartpart all ' did not clean.

    How to solve the problem? instead of creating a new virtual disk?

    Thank you!

    curiousmind999

    I'll answer my own question

    If DD \u003d/dev/zero of = path/to/file bs = 512 count = 1

    to clear the boot on the VD partition

  • REALLY stupid question about virtual machines and disks of cancellations.

    I'm a bit hesitant to ask this question because it might make me look stupid, but...

    When I'm done using Virtual PC and a virtual machine running Windows XP Pro with Vista 64 Home Premium because the host os, often I did not any significant changes to the hard disk of the virtual machine.

    What I save gets saved to a network share on my server for files and printing from Win98 and saved on a flash drive.

    Assuming that I do no configuration changes or anything else I want to keep, is there a reason barely stopping properly when I 'cancellations discs' enabled?

    Any reason, I can not save time by pressing the 'X' button and choose 'disable and remove changes '?

    I am aware of patches, but took me to inform me of the patches, and I can get patches when it's convenient for me and I always validate changes when I install the patches. I'm not using it for anything other than my classes of the school of the evening for the time being, so it is not much of a value of protection on the virtual machine, and I used to write papers on the host operating system. I just use the virtual machine to play with the admin tools in an environment where I can easily fix it a massive screw-up without spending hours to reinstall Windows.

    Hey SlickRCBD,.

    Not a stupid question at all! :)

    It's very well hit the X when you have activated the disks of cancellations. And corruption or problems with the active virtual machine will be resolved when using the drive to cancel it.

    Cody C
    Microsoft Answers Support Engineer
    Visit our Microsoft answers feedback Forum and let us know what you think.

  • Questions about multi-core use - Intel Core 2 Quad CPU - Q6600

    I have a virtual server running on my box of the hypervisor. I want to give him access to all four cores in my CPU. The processor is:

    Intel Core 2 Quad - #Q6600

    I'm runningUbuntu on this particular server. I did the following:

    cat/proc/cpuinfo

    I expect to see 4 separate the kernels listed, but this is what I see:

    =======

    Processor: 0

    vendor_id: GenuineIntel

    CPU family: 6

    model: 15

    model name: Intel(r) Core (TM) 2 Quad CPU Q6600 @ 2.40 GHz

    step by step: 11

    CPU MHz: 2405.970

    cache size: 4096 KB

    fdiv_bug: no

    hlt_bug: no

    f00f_bug: no

    coma_bug: no

    FPU: Yes

    fpu_exception: Yes

    CPUID level: 10

    WP: Yes

    flags: fpu vme pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss nx lm constant_tsc arch_perfmon pebs bts pni ssse3 cx16 lahf_lm up

    BogoMips: 4819.96

    clflush size: 64

    =======

    Although he lists on a single entry, is this set up correctly? If this is not the case, what should I do? Thank you for your help.

    You have already activated multiple vCPUs in comments settings? Which version of Ubuntu? Graphical user interface or command line?

  • Question about CPU cores

    I've had computers since the 98 so I'm not a beginner, but I'm also no computer genius.

    I got this new laptop in 2013. So far I have had a few problems with it, but since I also have a desktop computer (works in 32 bit Vista), I could get things to normal by doing some research on google. Nothing major since the last time I restored it to the plant that was in June of this year.

    Anyway, recently I came "Open Hardware Monitor" mainly to check the temperature, and I noticed it says that there are only 2 CPU cores. I find it weird because I thought it was supposed to be a Quad-Core.

    I was wondering how I can go on double check that and let the other 2 cores? Who would even wise to do?

    I don't really like for all the eye-candy as much as I want my machine to be fast and allow multitasking. I also plan to upgrade the RAM at the present time it is still running factory - I think that 6 G, but I would like to upgrade to the best and the best as well.

    I have a Samsung's Ext to 5 t hard drive soon and I want to just make sure that my mess is as soon as possible within reasonable limits of course. I try not to fry or something. I want it to run at maximum performance.

    In any case, I appreciate any help or advice I can get. Thank you for your time. Amanda

    Just uncheck it. The default is to allow all processors to run. Somehow your system has limited the number of operational cores to 2. Uncheck and reboot and recheck the Task Manager

  • Question about Virtual Machine learning repositories

    Hello everyone,

    I am interested in learning repositories OBIEE. Anyone know a virtual machine to learn repositories, I learn of dashboards and reports with Oracle Business Intelligence 11 g (11 g OBIEE) image EE virtual v107. Where could I research training on the repositories?

    Kind regards

    Carlota Viña Sirgo

    Check this box

    http://www.Oracle.com/WebFolder/technetwork/tutorials/OBE/FMW/bi/bi11115/biadmin11g_02/biadmin11g.htm

    Mark as correct if it is useful

    Thank you.

  • Question about virtual private networks on 5510

    Hello

    I have a client who is migrating to a Cisco VPN 3000 Concentrator to an ASA 5510 for VPN connections.

    All users connect to a group name currently on the 3000, which has a space in it.  On the ASA when I'm doing this am the ASA accepts only a group without spaces in there name.  Is there a solution that will allow us to use spaces in the name of the Group on the SAA?

    Can I get some advice on why it is not possible to have a space in the name of the Group?  Why Cisco have removed this feature?

    Thank you

    Rob

    Rob

    have you tried to put the name in double quotes?

    i.e.

    dial type tunnel-group "my group".

    Herbert

  • A question about the virtual processors in the prompt

    Dear Sir

    I have a general question about the number of virtual processors in the guest system.

    I use VMware ESXi 4.0.

    Say if my physical host has only 2 cups carrots (with or without HT should be the same), then is - it true that I can only attribute 2 virtual processors per virtual machine?

    Is it possible to give 4, 8 virtual processors in virtual machines?

    In my drop down menu I can NOT choose more than 2 virtual processors per virtual machine, I want to just make sure that it is not the problem of license.

    Thank you very much.

    Nanfang

    Hi Nanfang,

    linanfang wrote:

    So the general rule is the number of vcpus don't CAN NEVER exceed the number of physical processors. Is this correct?

    Replace "physical cpu" by "physical cores" and you are right, because a vCPU is mapped to a kernel. For example, you can assign 4 vCPU with a Quad-Core processor.

    If you think about it, it makes perfect sense. If you would be able to map 2 vCPU to the base, the vCPUs had to wait for them all the time because the physical kernel can simply perform an action at a time, why you would decrease the performance of your virtual machine by setting 2 vCPUs.

    It is not changed in vSphere 5.

    Concerning

  • Questions about vCSHB 6.5.1 (LAN or WAN and physical vs. virtual secondary server)

    Hello

    I have a few questions about vCSHB 6.5.1:

    1) there are two sets of installation guides: one for secondary physical server and a secondary server.

    What are the main differences between these two scenarios?

    (2) for vCSHB, there are two deployment options: LAN and WAN

    2 (a) which option is most common?

    2 (b) If an option (for example, LAN) works in an environment, can I assume that the other would work as well?
    And what a difference these two options?

    (3) is vCSHB backward compatible? VCSHB 6.5.1 works in an environment where an earlier version (for example vCSHB 6.4) works?

    (4) what version of vCSHB (e.g. vCSHB 6.5 or 6.4 and 6.3) is widely deployed today?

    Thank you.

    (1) there should be nominal differences - what is different is discussed the virtual network set up against the physical network implemented

    2 (a), in my experience LAN configuration is more common because it over a high availability solution oppesed to DR.

    2 (b) not necessarily, you should make sure that the appropriate ports are open

    (3) I think it is but you have to bring everything up to a compatible version as a best practice

    (4) I'd go with the latest version as it has been out for a few weeks-

  • Question about snapshots and virtual machines

    Hi all

    I have a small question about snapshots. I use VMware for about 6 months and I read about snapshots and how they work but still have a question to make sure that I understand how it works and it will work the way I think it works.

    I have a Windows 2003 server, which is a virtual machine. I have an application that uses MSDE database. I want to upgrade the database to MS SQL 2005, but to do this I need to back up the MSDE database, uninstall MSDE, and then install SQL 2005 and move the SQL database. This happens on the same VM.

    What I was thinking if I well Snapshots correctly is to snap turned the virtual machine before doing anything. Then do my upgrade steps and see if everything works. If its all messed up so I should be able to return to my shot and everything should be the way he had. What is the good? One of the main reasons I moved the server VM was because of this upgrade.

    After reading the documentation for the snapshots, it's how I undestood it. Pretty much any change could be reversed with snapshots. I wish just they had put in a few examples in the PDF file. Also it would be the same for all type of grades of the OS? Could I snapshot a Windows 2000 Server, and then "in the upgrade of the square" to Windows 2003? I've cloned a VM to do this but was curious about whether snapshots would be just as easy.

    Thanks for your help.

    Hello.

    What I was thinking if I well Snapshots correctly is to snap turned the virtual machine before doing anything. Then do my upgrade steps and see if everything works. If its all messed up so I should be able to return to my shot and everything should be the way he had. What is the good?

    That is right.

    After reading the documentation for the snapshots, it's how I undestood it. Pretty much any change could be reversed with snapshots. I wish just they had put in a few examples in the PDF file. Also it would be the same for all type of grades of the OS? Could I snapshot a Windows 2000 Server, and then "in the upgrade of the square" to Windows 2003? I've cloned a VM to do this but was curious about whether snapshots would be just as easy.

    Exactly the same thing for the upgrades of the OS.

    Perhaps the most important thing with the snapshots is to keep an eye on them and don't let them sit too long or become too big.  You have described the use cases are very good uses for snapshots.  Just make sure you have a solid plan with a schedule set, so that you can come back or validate changes before the snapshot becomes too large.

    Good luck!

  • Question about the interruptions and priming

    Hello

    I had a few questions about the startup and interruptions in a virtualized environment

    Assuming that, plenty of virtualization (no material assistance to virtualization of memory ).

    1 initialization: in an ordinary PC, the boot process starts with the BIOS, to expansion ROM, back to the BIOS and MBR secondary boot record, then grub (is it) and finally the operating system. In a virtualized environment with VMM running directly on top of hardware (Native VMM), how is the initialization of the different process, as I understand it takes BIOS-> Expansion ROM - > BIOS-MBR-> other record secondary-> VMM-> OS--> applications >. Am I right on that?

    2 breaks: VMM examines the source interruptions prior to the interruption, so in a multicore environment, assuming a 2 processor core, how the VMM decides on the kernel for which the interruption in intended, prior to shipment of the interruption. Interruptions are tag ID, said core ID?

    Thanks in advance

    -SC

    sidc7 wrote:

    1 initialization: in an ordinary PC, the boot process starts with the BIOS, to expansion ROM, back to the BIOS and MBR secondary boot record, then grub (is it) and finally the operating system. In a virtualized environment with VMM running directly on top of hardware (Native VMM), how is the different boot process, if I understand correctly to -> BIOS-> Expansion ROM BIOS-> MBR-> other documents-->--> OS--> requests VMM. Am I right on that?

    It is simplistic but essentially correct.  A metaphor would be a little better thinking that the hypervisor/vmm is an operating system, except that the process on this operating system are requests or comments OSes.  If the BIOS-> OPROM-> BIOS-> MBR-> hypervisor-> init process of the hypervisor-> reviews of fork () s operating systems.  This can become blurred by the design choices (for example Xen/Hyper-V init start a coded parent hard partition that makes hypercalls privileged to fork() guest OSes; ESXi init runs a very limited subset of applications directly on the hypervisor and ESX Classic is somewhere between these approaches).

    There is a subtle distinction between "hypervisor" and "www."  The "hypervisor" is the operating system of single root (e.g. ESX) who interacts directly with the hardware and has access to everything; a hypervisor is not to be used to run virtual machines.  When we talk about a "hypervisor", the tendency is to describe something which is a BONE (although usually a minimal OS designed only to run virtual machines).  The "www" is the layer that allows a virtual machine run: it provides the interposition, virtualization and emulation services and can be plural (for example a vmm by guest operating system).  Architecture of VMware deal with these two separate components, while most other virtualization platforms merge the two.

    sidc7 wrote:

    2 breaks: VMM examines the source interruptions prior to the interruption, so in a multicore environment, assuming a 2 processor core, how the VMM decides on the kernel for which the interruption in intended, prior to shipment of the interruption. Interruptions are tag ID, said core ID?

    Strictly speaking, the interruption is not transmitted to a guest operating system - receives the hypervisor (or rather the VMM it transmits to the hypervisor), the hypervisor drivers interpret the interruption (for example reading package of NIC, I/O process of HBA, the timer tick completion), then after a new appropriate break in the guest OS.

  • Satellite U405D - several questions about overheating/disassembly/upgrading etc.

    Hello

    I have several questions about my old one by Satellite U405D-S2910

    1. when it works, after 2-3 hours (I run usually small programs such as safari, msn messenger and bsplayer) CPU gets 85 to 90 C (178-188). When I play age of Empires 2 (come on, its an old game) like 2-3 hours, it stops. What could be the possible reason? Furthermore, let me inform you about the climate of the city I live, 30 c temperature - humidity 25-35% (today).
    PS. CPU is AMD Turion 64 X 2 Dual-Core Mobile Processor. Model RM-74

    2. I'm going to disassemble my laptop in order to clean its cooling units (I think at the rate of overheating is this). It does seem like a desktop computer, so complicated. Ive seen a disassembly not to not (btw, its so difficult to spell dismantling :) I think Im going to do this. What are your suggestions on this subject? experiences could help me?

    3. my laptops is Ram 2x2gb PC5300 DDR2 667 MHz SDRAM memory, I want to replace RAM memory 2x2gb MACH XTREME DDR2 1333 MHZ CL9 NOTEBOOK. Should I do it? Fit my portable, stable work? any suggestions?
    PS. motherboard chipset AMD M780V

    4 - Finally :), should I use OS 64 - bit or 32-bit OS (win7)? what OS would you use if you were me?

    Thank you.

    Hey Buddy,

    1 + 2. I think everything is related to a higher internal temperature and you must clean your laptop using a jet of compressed air. That is why it s not necessary to remove, just blow softly and soon the air through the laptop. You can buy such compressed air which squirts of each computer store I think and it takes only 5 minutes.
    You can find a useful article about this here:

    3. in my opinion he should forget this update! The speed of the RAM is related to the FSB of the CPU and as much as I know about Satellite U405D it s 667 MHz so it s already the RAM faster than you can have. Save your money and buy a larger HARD drive or in the best case a SSD that can really improve the performance!

    4. in my view, the answer is clear: Windows 7 64-bit.
    Only a 64-bit OS supports full 4 GB of RAM. ;)

  • Question about "Windows 8.1 DG to Windows 7 Pro 64-bit" and Windows product key

    I have acquired a recnet ThinkPad T450 fdrom a retialer online (NCIX) and I hav ea a few questions about the installed Windows operating system.

    Before I just go further, HRE are some information about my particular system.

    Lenovo ThinkPad T450

    Model: 20BV00BUS

    CPU: Intel Core i5-4300U

    RAM: 4 GB

    Under the product description, it was stated "Windows 8.1 DG Windows 7 Pro 64." My understnading, the ThiknPad has been installed with Windows 8.1, but downgraded to Windows 7. There is also a Windows 8 Pro badge sticker at the bottom of the matchine.

    Is it possible, at the end of the user/consumer, to alter the functioning ti repressive back Windows 8.1?

    Can I create a recovery with Windows 8.1 disk?

    A separate but related matter relates to the Windows product key.

    I noticed the Ultrabook do not come with a sticker / label with the Windows product key (i.e. COST). Some quick research indicated that the Windows key is programmed into the BIOS.

    This indeed true (I wish an audit)?

    The key is visible in some way (for when you need to reinstall the operating system. I have not tried to enter the BIOS at the moment)?

    Thank you for taking the time to consider my question.

    Kind regards

    Victor L.

    Hi Victor,

    I'm in the same boat as you type, but want to keep the facilities of Windows 7 rather than pass them to 8. Just like you, I buy our Lenovo from different retailers and they come with windows 7 installed through the Windows 8 lower upgrade program.

    We had one or two laptops come with a recovery media (for windows 8/8.1 only) but have noticed that all laptops now come with no physical media or codes for the recovery. WIN8 stickers, you described is more came with the license key on the sticker (it comes to stop you using the same license again and again, microsoft will get more money if you buy another license etc.). I also saw that the key is essentially located in the BIOS but were not able to test what we use any of windows 8. I use it even at home!

    To answer your question, you can get a recovery of Lenovo for Windows 8 media!

    Go to the following link: https://support.lenovo.com/us/en/lenovorecovery

    (It help you understand why this method is used on this page as well)

    Select Start,

    Please have your serial number of your laptop, (to find it go to this link: https://support.lenovo.com/us/en/find-product-name)

    If you qualify (which you will very probably) Lenovo will ship for free, recovery disks give it a go, took me 2 minutes.

    I hope this helps.

    Best regards, Max.

  • Questions about reinstalling Windows XP after the end of Support

    Several members of the family of my friends that I sometimes provide technical assistance for are still under XP SP3 on their systems.  These systems are too outdated and underpowered to upgrade to a newer version of Windows, and it will probably be some time until they are able to upgrade to a more recent hardware capable of running most modern versions of Windows.

    If in the meantime, something happens to one of their computers requiring a reinstall of Windows after support for XP purposes, but before they can get a newer computer, I have a few questions about what will happen:

    1. Is there still a way to activate their existing copies of XP during installation process?
    2. While I understand that new patches, updates, patches & will be is no longer provided, existing patches will be available through the Microsoft Update service so that I would be able to get those computers to update state that they would be about to XP supported ends, or do I have to search elsewhere to try & find these updates?  (It would be nice if Microsoft put up a cumulative update that would be sort of a mega-patch for people in this situation to be able to get back to the most current state systems, but I would not be surprised if there wasn't such a thing).

    Anyone know the answers to these questions?

    Thank you

    You should be able to clean install and activate Windows XP.  You should be able to upgrade as well, even if the wise move would be to get the updates stored on portable media or integrated into a multimedia installation (or both) as soon as POSSIBLE if the plan is to continue using Windows XP for a while.

    My suggestion is to set up and to buy Windows 7 Professional renovated systems / lease from places like TigerDirect.com - as pricing is generally about the same as just a license for Windows 7 or a little professional, the hardware specifications of these machines are likely machines Windows XP current in use, using something like the PC Mover take care of Laplink and Microsoft to move files (or for the more than 25 USD the) applications that can be moved as well) to the new system of the former is possible, and Windows 7 will get updated until 2020.

    Recently research I've seen systems to Windows 7 Professional for as little as 150 USD with 4 GB of memory and dual core processors.  Not bad.

  • A few questions about FileConnection/JSR 75

    [I posted these issues some time ago, but got no response]

    I am writing an application that targets the 4.2.1 and upward. After reading everything I can find (api docs, forum, kb, guides, web search), I still have many questions about the BlackBerry file system:

    1. Are store / and SDCard / internal name of the memory and the SD card root on all BlackBerry devices?
    2. JSR 75 leaves open the question of whether an application sees the virtual roots that are private to itself or if all applications share the same roots. How does on BBs? I have seen many examples where the path name starts by "/ store/home/user/app_name /" or "/ SDCard/BlackBerry/app_name / '. Is this necessary, or can my request simply use "/ store /" or "/SDCard/" and add the file name? If the former, are there best practices documented anywhere to manage collisions between app names?
    3. If the files are visible in many applications, there are layers of security available to protect data (I think something similar to how a PersistentObject can be encapsulated in an object ControlledAccess using the PersistentStore) or do make us our own?
    4. I read on this forum somewhere that store / is not available when a device is connected via USB and mass storage is active. Is this and other information like this documented somewhere?
    5. May restrict the COMPUTER strategies how an application uses FileConnection, particularly to the store / and SDCard /? If so, is there any guidance on common restrictions that developers should know when you write applications for general use?
    6. What restrictions are there on the names of files (allowed characters, length, etc.)?

    Any guidance or pointers will be appreciated!

    Hi Ted,

    I'm not sure on your remaining questions, but I'll try to answer as best I can:

    1. did not have different names on the devices until today.

    2. you have no problem on SD card and you are allowed to save files anywhere it. Not quite sure

    shop around, but you should be able to save files on the file system visible and own created folders. There will be

    some folders inaccessible devices that require internal processing (installed Te of applications etc..).

    3. you can open files as readonly etc. but elsethere it is not the layers of security installed. If you have data

    issues of security, you must save this Te using the RuntimeStore class!

    4. I don't know, but it's a fact. But for this purpose, you can detect the toggling of mass storage

    programmatically.

    5 see point No. 3

    6 see restrictions as specified in JSR 75.

    Kind regards

    Jochen

Maybe you are looking for

  • HP Pavilion dv6530ep drivers XP

    Pleeeeeeease, need drivers XP Pro for dv6530ep and the correct order to install them. Thank you!

  • HP Pavilion m9252p Vista 64-bit - does not start

    My Pavilion m9252p will not start not (diagnosis says corrupted registry) and before I take drastic measures of system recovery, if I remove the hard drive from my office computer and connect it to another computer as a second drive, I will be able t

  • EA6400 port forwarding

    have disabled firewall and filtering all security-> firewall Add rules for the port forward But what a race test on mxtoolbox.com just said 'Filtered' do not open Please advice

  • Windows media player cannot read CDs and DVDs

    MS supports says my Player DVD is dead and needs a new drive. So, I just install a new ROM DVD and still have the same problem - cannot read CDs and DVDs. When I play the CD, I always get the error meessage--(lecteur Windows media a rencontré une err

  • ICS update procedure

    Hello Can someone please the meathod or the procedure to update the mobile to ICS... Many of them say the many meathods, the sony team please guide us to succeed the upgradation, no lag. Thanks in advance.