Transparent page sharing (TPS)

I want to know the GST is used by default or it is used in the event of a conflict?

That's right-, you might think of the balloon that fires when there is restraint-

Tags: VMware

Similar Questions

  • Deactivation of Transparent page Sharing in ESX 3.5.4?

    Hello

    I'm running two 3.5.4 ESX hosts. I want to disable transparent page sharing for these two hosts; saw this post http://communities.vmware.com/message/251948, it says that you must do the following...

    echo 0 >/proc/vmware/config/Mem/ShareScanTotal

    echo 0 >/proc/vmware/config/Mem/ShareScanVM

    Save changes to the file/etc/vmware/vmkconfig, if only it will not after a reboot.

    I browsed this directory and found this...

    # pwd
    / proc/vmware/config/MEM
    #ls
    AdmitHeapMin IdleTaxType ShareScanTime
    AllocGuestLargePage kernelResvPad SwapAsyncWritePages
    AllocHighThreshold LogLowMemoryStateBT SwapDecayPct
    AllocUseGuestPool LogLowMemoryStateUsage SwapFilePersist
    AllocUsePSharePool MinFreePct SwapInBatchPages
    BalancePeriod SampleActivePctMin SwapIORetry
    BonusAllocPct SamplePeriod TestOnAlloc
    CtlMaxPercent ShareCOSBufSize TrackUsageAllocAllowance
    DesiredAllocEnable ShareEstimatePeriod TrackUsageHeartbeatEnable
    DesiredAllocPct ShareEstimateProbe TrackUsageHeartbeatPeriod
    HostLocalSwapDir ShareEstimateSamples TrackUsageLPageAllowance
    HostLocalSwapDirEnabled ShareRateMax TrackUsageSwapAllowance
    IdleTax ShareScanGHz VMOverheadGrowthLimit

    Of course I don't see that the two topics mentioned in the thread, someone can help on this please?

    I am also to be upgraded these two ESX 4.0 host soon, please suggest what procedure / recommendations for configuration of the GST in ESX 4.0

    Thanks in advance.

    MILIN

    Here's a VMware KB article on the deactivation of GST - http://kb.vmware.com/kb/1004901 that uses an advanced configuration of ESX (i), they will persist through reboots and the best approach that tweaking manually nodes proc that these changes don't persist not through a reboot.

  • Pilot and bollon transparent page sharing

    Hi friends,

    Please help me with below questions. any info will be great. I need quick help

    -How to enable the transparent page sharing

    -How to activate ball player

    -Whatever it must either be installed on ESX and virtual center to enable the transparent page sharing

    -Whatever it must either be installed on ESX and virtual center to enable the balloon pilot

    Thanks in advance

    -How to enable the transparent page sharing

    It is enabled by default on each host ESX (i).

    -How to activate ball player

    By installing the VMware tools on the guest operating system.

    André

  • How to layout a document in InDesign to print graphics on a transparent page?

    Hello!

    What I need help, is that, basically, I'm trying to create a portfolio of my first work together year-round. Which will be printed.  I want to include a number of pages that will be transparent. My idea is that I want to sketch my ideas to appear on transparent paper, to then have a normal page of the final under design.

    How would I implement? That the sketches would be placed on the right page, but then I have to leave the next page in the left hand empty to keep page numbers even? Basically, a transparent page takes one together left and right of the paper and if so how would I need to throw this out in InDesign?

    Thank you!

    Ok.

    I don't see how including the transparent pages in your main provision face pages will help you in any way, but if you want to see the effect of these pages, I add a layer to the file and place the transparent images on this layer, flipping the image horizontally on the left side of the spread and let unflipped on the right , so you can see what it is that the pages are returned. The value as a nonprinting layer. Make a second, normal, just slides in the file.

    The transparent pages will be page numbers? It would be the only complicating factor. If they do, you will need create sections and restart page numbering (2 numbers to jump) on every page that follows a transparency in your file to pages facing. Personally, I do not think I would be number the slides.

  • Transparent page in PDF format

    I would like to create a PDF ebook that has transparent pages, not white. When you view the PDF file, you see, for example, a graphic illustration and it is transparent enough to see the page below. It must be a manipulable page, not a button. I have the creative cloud together, so access to all Adobe software to create this page. Is it possible and if yes, how can I do it and what program can I use?

    The page background is always white, but this should not stop get you what you want. Use InDesign and place your image on top, with transparency. Be SURE to export a PDF from InDesign, do not print in PDF format.

  • In the absence of Pages sharing for mail

    I have 3 machines, 2 execution model and portable with Yosemite.  I used to be able to create things in all email and Pages... I would choose to share e-mail and she asked how to send [pdf, word, etc.], but now that lack – it is always possible on a single machine, I think but not all - pic is of my laptop... How can I solve this?

    If you use Pages ' 09 on Yosemite or later, the menu share: send by mail-outs are more functional - the price of the older software confronted by changes in operating system.

    For Pages 5.5 and later versions, the loss of the action: send a copy: submenu mail item is caused by a corrupted launch services database.

    Exit Pages and then open the Terminal (Launchpad: other: Terminal). this Apple article, triple - click on the scrolling text to select it, copy it, click on in the Terminal, and then paste. If the command does not run automatically, press return. There will be no end message, other than a new Terminal prompt. Leaving the Terminal.

    Open the system preferences: Extensions: Share menu pane and select Mail, if it is not already selected.

    Run v5 + Pages again and check if the share: send a copy: submenu mail item is back.

  • ESXi Shared memory of commom and UCS B200M2

    I vSphere 4.x environment to IBM 3650 and half B200M2 (a group consisting of the 3650 and a group consisting of the B200M2).  IBM machines are 2 socket quad core with 34 GB of memory and Cisco are 2 Socket 6 core with 48 GB of memory.  Workloads on IBM and Cisco ESXi hosts are the same.  For most of 2008 and Windows 2003 machines.  On IBM machines, I move 1 GB, 2 GB of shared memory (common shared memory - amount of memory that is shared by all virtual machines powered and vSphere services on host machine) on each ESXi host.  On Cisco machines, I get around 15 MB on each ESXi host. Considering that it is one of the great features of VMware (sharing of memory) why is there such a huge disparity between the machines?  Is it because the Cisco blades NUMA machines?  Is there a setting I'm missing?  It's a huge difference.  I don't regret getting the UCS stuff I like it but it is the big novelty of the VMware that does not work with the UCS.

    Please take a look at the following:

    http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1020524

    Transparent Page Sharing on the Nehalems won't be out until the memory usage is almost 100%.

    Edit: should read: Transparent Page Sharing on the Nehalem and later generations will not kick until the memory usage approaches 100%.

  • Difference between consumption, Active, private, shared, exchanged and the compressed?

    Difference between

    Consumed, Active, private, shared, exchanged and the compressed?

    Hello

    I assume you mean memory?

    Consumed: Welcome the memory that is allocated to the VM

    Active: Comments memory that is used by the virtual machine

    Private: Amount of memory stored in the physical host for this virtual machine memory

    Shared: Amount of memory shared between several virtual machines with Transparent Page Sharing

    Swapped: Memory of the host traded to a file in the directory of the virtual machine to release the host memory

    Tablet: Memory that has been compressed by the VMkernel for free space

    Concerning

    Tim

  • Fail-Over with limited resources

    I'm new to VMware.  I support a VRTX of Dell server at (3 blades) recently ordered.  Please answer the following questions:

    1 how Fail-Over does not work if you have limited resources?  When I install server Dell VRTX, I very careful with the allocation of RAM for some of the virtual machine.  It is mainly a VM that I am concerned about (64 GB of RAM).  I have a lot of storage for both the present and future of the virtual computer, so I'm talking about size/allocation of storage during the debate.  My current setup is:

    Slide 1:

    VM 1 # 8 processor cores, 64 GB RAM

    VM 2 # 4 CPU cores, 16 GB of RAM

    Blade 2:

    VM 3 # 4 cores of the processor, 32 GB RAM

    VM #4 4 CPU cores, 16 GB of RAM

    Blade 3:

    VM 5 # 8 processor cores, 32 GB of RAM

    Each blade: 2 (20 logic Cores/CPU) CPU, 128 GB of RAM

    Later this year I intend to add at least two 2 more VM (RAM allocation may be somewhat higher than those listed.).

    VM #6 4 CPU cores, 16 GB of RAM

    VM #7 4 CPU cores, 16 GB of RAM

    All the VMS operating system: Windows Server 2012 R2 64 bit

    2. I'm afraid that if 1 blade fails, and later, I much more Total virtual computer, what happens if the allocation of virtual machine disk RAM failing is greater than what is available on the blades for which virtual machine failover?

    I intend to recommend increasing the amount of RAM to 192 GB (minimum) by blade, just to be sure.  However, there is a chance that the increase of RAM cannot be approved.

    Thanks in advance.

    Hello

    If the amount of vRAM exceeds the available landau your VMs will have a bad time. Transparent page sharing, compression will help but eventually your virtual machines will begin to Exchange and it will be very sensitive.

    http://www.VMware.se/PDF/Perf_Best_Practices_vSphere5.5.PDF

    Kind regards

    Martin

  • balloon pilot

    What is balloon pilot how it will work

    An important: If you don't not install them the VMware Tools, the vmmemctl driver (ball) will not be installed and balloon would not be possible. ESXi has 4 memory management techniques:

    (1) transparent page sharing: eliminates redundant copies of pages of memory, subtracting them to memory and create a reference instead.
    2) memory ballooning: in times of conflict, the balloon pilot (comes with VMware Tools) will ask the OS invited for unused memory and returns it back to vSphere
    (3) compression of memory: after the balloon runs out, try to compress the memory (essentially gzipping it).
    (4) the disk swap / cache host: Swap memory on a disk any.

    So, without the ball the VMware tools (vmmemctl) driver is installed, we will have 3 memory management techniques. It ignores the montgolfière and goes directly to the compression.

  • Confusion on reserves/resource memory pools.

    I read a ton of information about memory resources and Resource Pools, but nobody seems to clarify one thing: what is the amount of memory I need to configure for a Windows virtual machine?

    Here's the question:

    I have a Windows 2008 domain with several virtual servers.

    Two domain controllers

    An Exchange 2010 Server

    A Terminal Server 2010

    A SQL Server

    I put each of the above virtual machines to have 2048 (2 gigabytes) of memory in the operating system. SQL, Terminal Server and Exchange are set to 4096 GB of ram.

    I noticed that SQL, Exchange and Server Terminal server sit idle to about 1.81 concert at 2gig of its use.

    My question:

    This who should I put my virtual machines to? Do I put them all to 6 or even 8 concerts because I know that most will never need that, but over time the term of Exchange Server and SQL "could."

    If I do, my vSphere Resource Pool provide the necessary memory needed and deflate will recover do not need?

    I am worried about the definition of an absolute limit for these machines that would not allow for ballooning and inflating etc but it doesn't seem to be an article about what it takes to set your VM too inside the actual operating system of the virtual machine?

    Thank you!

    Allocation of RAM gives a maximum limit for the amount of memory that can use a virtual machine. Once the VM starts using memory, ESXi will allocate as needed. If you set the box 'Book all memory comments' ESXi creates a hard reserve for the amount of memory.

    Also note that you can add RAM on the fly (not remove however) using memory hot add functionality, but this must be activated on a basis by VM when the virtual machine is shut down. Also note that there is a small overhead (extra) when using this feature to only turn on a virtual machine where hot-memory add is not really necessary.

    A medium base value is not really there, but we have set up simple domain with 2 GB memory controllers. In your situation, I'd go with:

    SQL: 4 GB

    Exchange / 3GB

    DomainControllers (assuming they are simple domain Active Directory, DNS, DHCP servers): 1 GB each

    TS: 4 GB

    That would give you 13 GB of RAM implementation but because of GST (transparent Page Sharing), you can provision this a little. Also be sure to install the VMware Tools in the virtual machine (can't emphasize this point) to be able to use the balloon when it's necessary. Perhaps this is an option to upgrade the two hosts to 16 GB because it would give you a little more space based on the memory usage.

  • View of the limitations of Clients for CPU

    I start a POC VDI for a small group of users (8), to keep my costs low I used an old host ESX (3 years previously used to manage servers from 15-20) which has 2 processors and 4 processor cores each, the machine has 48 GB RAM 1 TB of raid 5 storage, disk are new 15 k disks and local storage of the POC...

    We have installed required using 3 CPU virtual server components.

    We have created an optimized image windows 7 through the composer and created the pool etc. The comments from the engineer is I can only support 5 clients because I have only 5 virtual CPU left (4 cores * 2-3).

    I have, that it is true because it does not correct sewing, I expect have the support of many connections and performance would just reduce, has no physical limit based on processor?

    Some may contribute to explain to find out why he could say this?

    Thank you

    Hello

    Most consultants recommend usually 7 or so Office VM per processor, so you would be able to have many more users than 5!  Everything is obviously depends on the workload of each virtual desktop.  If it's just the Office applications and Internet browsing may 10 VM of by heart. Memory is a factor greater than the power of the processor just be aware that if your Win7 workstations have 3 or 4 GB each you will find soon you hit this ceiling of 48 GB RAM, even with transparent page sharing.

    The common practice is to use Win7 x 86 instead of x 64 and it is lighter on the memory usage.

    Kind regards

    Darren V bread

    VCP, VCA - DT, PCC - DT, MCITP

    www.Freestyle-it.co.uk

  • Swap file

    Hello, I have a question for exchanging files. If I create a virtual machine with 1vcpu, 2 GB of ram and does not use a resource pool, then I see that my swap file is 2 GB in size. I understand that, so far. If I use a reservation of memory 1 GB, my swap will be 1 GB. Understand the part as well. I don't understand, when this file will be used? I read a few links on the web, and I see that this has nothing to do with the windows pagefile. If I have a VM with 1 GB of vram and all that 1 GB is used, I think windows will start to write the swap file, which will kill performance. Unless I'm wrong and it is during this swap file is used?

    Any help?

    MN

    There are three steps the vmkernel uses in managing and releasing memory.

    1. Transparent Page Sharing - the vmkernel is aware of all the pages are stored by the VMs - when it identifies identical pages it will store both read-only memory and when a change needs to be done will be copied into its own space in memroy - what is completely transparent to the operating system do you have in the virtual machine
    2. Balloon pilot - this is the driver which is installed with the VMware tools and typically is inactive - it is operated by the vmkernel when the ESXi host runs hsort physical memory - he began claiming the memory in the virtual memory of VMs force the operating system to continue its own Exchange/swap file space.
    3. by vm vmkernel swap file - what you're asking-if the vmkernel does not enough memory to satisfy your VMs need it begins to swap pages of memory to the swap space / as you pointed out it is independent of the guest operating system virtual memory and is equal to the amount of memory assigned to the virtual machine and the reserve of memory of the VMS - fi that everything works as designed Yes virtual machine will already use virtual memory OS comments
  • Memory usage increased on ESXi 4.1 for ESX 4.0

    Hi all

    Recently, we migrated about 130 virtual machines to a Cluster of U2 ESX 4.0 to esxi 4.1 u1 cluster and noticed that the memory usage is very high on the hosts compared to 4.0.

    The band u2 4.0 was 255GB of RAM between 9 guests and the new cluster has 355 GB of ram between 7 hosts.

    use of the memory of the 4.0 u2 was about 60-70% and now on 4.1, on the use of 90%. Can someone please explain this. It is more difficult to understand that there are 100GB more RAM available on the new cluster, but its use all this.

    ESX 4.0 host u2 were HP BL460 G1 - 32 GB each

    ESXi 4.1 u1 are HP BL460 G6 - 48 GB each.

    Thank you

    According to me, IT ' was all about GST (Transparent Page Sharing) and your new generation of CPU. This phenomenon is independent of the version of vmkernel. Let me explain briefly,

    New processor generation, such as Nehalem, have a feature called hardware support memory management unit, which includes a buffer cache called TLB (Translation Lookaside Buffer). I will not dive into the details but if vmkernel detects that your CPU have this kind of functionality, he decides to use pages (2 MB) memory instead of partial memory (4 KB) pages and also do not use GST as long as a restraint on resources of memory occurs. This is why you have a higher memory usage that you expect to see.

    To work around the problem (not a best practice but it is necessary), you can force vmkernel to work with small pages and trigger the GST. There is an advanced for this setting.

    • Mem.AllocGuestLargePage= 0

    You can try this on a test environment and see if it works for you.

  • 6 GB 40% used

    I configured a client Linux with 6 GB of memory. Since the VM server that hosts it I can pull up a chart of this customer and can see around 40 percent of memory in use. Now, on to the operating system (like Linux is) much of the memory is consumed between processes and the cache files. Why then the virtual machine only shows 40% of the 6 GB? The server of virtual machine hosting the client can detect and keep the same pages of memory?

    Welcome to the community - if you're running vSphere, the answer is Yes - what you see is transparent page sharing.

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