Values of CPU Ready

Similar Questions

• How to calculate the CPU Ready on Cluster DRS via Powercli?

  Hi all!

  I have a DRS Vsphere cluster. I want to know what is the value of the loan of CPU I have in my group.

  For example, I get 20% of powercli value, it is normal for the cluster, but if I have 100% or more, I have a problem.

  How to achieve via Powercli? And how to calculate the percentage values correctly?

  I know, I can get all values of CPU Ready of VMs cluster, but IT is not the same thing, I need overall value of CPU Ready.

  Thanks in advance!

  As far as I know you can get the cpu.ready.summation for ESXi nodes or VMs.

  For a cluster, you will need to get the value of each node in the cluster ESXi and then take the average.

  The metric cpu.radey.summation is expressed in milliseconds.

  To get a percentage, you need to calculate the percentage of loan period during the interval during which it was measured.

  Something like this (this will give the loan current %)

  $clusterName = "mycluster.

  $stat = "cpu.ready.summation".

  $esx = get-Cluster-name $clusterName | Get-VMHost

  $stats = get-Stat-entity $esx - Stat $stat - Realtime - MaxSamples 1 - forum «»

  $readyAvg = $stats | Measure-object-property - average value. Select - ExpandProperty average

  $readyPerc = $readyAvg / ($stats [0].) IntervalSecs * 1000)

  Write-Output "Cluster $($clusterName) - CPU % loan $(' {0:p}'-f $readyPerc).

• Request to modify the script to collect the CPU Ready in percentage by VM instead of milliseconds

  Hi all

  I would ask for help here with the script that I found in this forum by Mr. LucD to collect % VM CPU ready to be changed according to the famous formula for calculating the percentage of CPU of VM ready:

  ((Valeur de sommation UC / (< intervalle de mise à jour par défaut graphique en secondes > * 1000)) * 100) / number of vCPU = CPU % ready

  
  

  
  

  From my understanding, the script must be changed because:

  1. Don't divide the percentage CPU Ready by the number of vCPU for each virtual computer
  2. The refresh interval is not set 'for a week. for simplicity, this script will be used to collect last week performance data ($start = (Get-Date). AddDays(-7))

  Note: The refresh rate can be found this KB: VMware KB: conversion between the summation of values CPU and CPU ready %
  

  the purpose of this script is to classify VM of the result is greater than 10% determined as having problems with CPU Ready. Article source: http://docs.media.bitpipe.com/io_10x/io_107330/item_605784/Basic%20VMware%20vSphere%20Performance%20Guide_201211.pdf)

  I have tested and run script below:

  $allvms = @()
  $vms = Get-VM  
  $start = (Get-Date).AddDays(-7)
  $metrics = "cpu.usage.average","mem.usage.average","cpu.ready.summation" 
  
  
  Get-Stat -Entity $vms -Start $start -Stat $metrics | 
  Group-Object -Property {$_.Entity.Name} | %{
    $cpu = $_.Group | where {$_.MetricId -eq "cpu.usage.average" -and $_.Instance -eq ""} | Measure-Object -Property value -Average -Maximum -Minimum
    $mem = $_.Group | where {$_.MetricId -eq "mem.usage.average"} | Measure-Object -Property value -Average -Maximum -Minimum
    $vmstat = "" | Select Time,VmName, MemMax, MemAvg, MemMin, CPUMax, CPUAvg, CPUMin, CPURDYMaxPercent
    $vmstat.VmName = $_.Group[0].Entity.Name
    $vmstat.Time = $_.Group | Sort-Object -Property Timestamp | Select -First 1 | Select -ExpandProperty Timestamp
    $vmstat.CPUMax = [Math]::Round($cpu.Maximum,2)
    $vmstat.CPUAvg = [Math]::Round($cpu.Average,2)
    $vmstat.CPUMin = [Math]::Round($cpu.Minimum,2)
    $vmstat.MemMax = [Math]::Round($mem.Maximum,2)
    $vmstat.MemAvg = [Math]::Round($mem.Average,2)
    $vmstat.MemMin = [Math]::Round($mem.Minimum,2)
    $vmstat.CPURDYMaxPercent = &{
    $interval = $_.Group[0].IntervalSecs * 10
      ($_.Group | where {$_.MetricId -eq "cpu.ready.summation" -and $_.Instance -eq ""} | 
    Sort-Object -Property Value -Descending |
      Select -First 1 | 
      Select -ExpandProperty Value) / $interval
    }
    $allvms += $vmstat
  }
  $allvms | Select Time,VMName, MemMax, MemAvg, MemMin, CPUMax, CPUAvg, CPUMin, CPURDYMaxPercent | 
  Export-Csv "C:\TEMP\AllVMs-7days.csv" -noTypeInformation -UseCulture 
  

  I hope that this will be the most useful script to understand where particular VM is experiencing problem with percentage CPU Ready.

  Thanks in advance,

  I have my version here, I use to use of the CPU.

  {Function Get-Ready

  <>

  . LOGBOOK

  This unique feature provide several reports and information. IE: convert ready value into a readable format (for real-time, day, week, month, year).

  . DESCRIPTION

  This unique feature provides multiple information of esxi host, as the list below.

  The CPU usage of the virtual, Mhz, the use of the processor CPU ready computer

  vCPU allocated to the VM (jailbroken in the casings and core)

  VMHost name

  Information physical VMhost CPU (jailbroken in the casings and core)

  To convert between value of CPU ready summons in vCenter performance tables and the value of loan % of CPU that you see in esxtop, you must use a formula.

  The form requires that you know the default update intervals for performance dashboards. These are the default update for each chart intervals:

  Realtime: 20 seconds

  Last day: 5 minutes (300 seconds)

  Last week: 30 minutes (1800 seconds)

  Over the past month: 2 hours (7200 seconds)

  Last year: 1 day (86400 seconds)

  To calculate the % of CPU ready of the summation value ready CPU, use this formula:

  (Value of summons UC / ( * 1000)) * 100 = ready % CPU

  Example: Stats in real-time for a VM on vCenter may have an average CPU ready summation value of 1000. Use the appropriate formula values to get the loan % of CPU.

  (1000 / (20 sec * 1000)) * 100 = 5% CPU ready

  For more information on vmware 2002181 KB

  . VM PARAMETER

  Name of the virtual machine

  . ENTRIES

  String.System.Management.Automation.PSObject.

  . OUTPUTS

  None.

  . EXAMPLE OF

  If you wrap this script inside the function you can use it as a command.

  To encapsulate this script

  PS > Get-VMHost esxihost.fqdn | Get ready

  Report back for perticular VMHost vm

  . NOTES

  To view examples, type: "get-help Set-VMHostSSH-examples.

  For more information, type: "get-help Set-VMHostSSH-detailed".

  For technical information, type: "get-help Set-VMHostSSH-full".

  http://kunaludapi.blogspot.com

  #>

  [CmdletBinding()]

  (param

  [Parameter (Mandatory = $true, ValueFromPipeline = $True, ValueFromPipelineByPropertyName = $true)]

  ([String] $Name) #param

  BEGIN {#begin}

  {in process

  $Stattypes = "cpu.usage.average", "cpu.usagemhz.average", "cpu.ready.summation".

  foreach ($esxi in $(Get-VMHost $Name)) {}

  $vmlist = $esxi | Get - VM | Where-Object {$_.} PowerState - eq "Receptor"}

  $esxiCPUSockets = $esxi. ExtensionData.Summary.Hardware.NumCpuPkgs

  $esxiCPUcores = $esxi. ExtensionData.Summary.Hardware.NumCpuCores/$esxiCPUSockets

  $TotalesxiCPUs = $esxiCPUSockets * $esxiCPUcores

  {foreach ($vm to $vmlist)

  $VMCPUNumCpu = $vm. NumCpu

  $VMCPUCores = $vm. ExtensionData.config.hardware.NumCoresPerSocket

  $VMCPUSockets = $VMCPUNumCpu / $VMCPUCores

  $GroupedRealTimestats = get-Stat-entity $vm - $Stattypes - Instance-Realtime Stat ' "-ErrorAction SilentlyContinue | MetricId Group-Object

  $RealTimeCPUAverageStat = '{0:N2}' f $($GroupedRealTimestats |) Where {$_.} Name - eq "cpu.usage.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $RealTimeCPUUsageMhzStat = '{0:N2}' f $($GroupedRealTimestats |) Where {$_.} Name - eq "cpu.usagemhz.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $RealTimeReadystat = $GroupedRealTimestats | Where {$_.} Name - eq "cpu.ready.summation"} | Select-Object - ExpandProperty group | Measure-object-value average | Select-Object - ExpandProperty average

  $RealTimereadyvalue = [math]: tour ($(($RealTimeReadystat / (20 * 1000)) * 100), 2)

  $Groupeddaystats is entity-Stat-get $vm - Stat $Stattypes - beginning (get-date). AddDays(-1)-done (get-date) - IntervalMins 5 - Instance ""-ErrorAction SilentlyContinue | MetricId Group-Object

  $dayCPUAverageStat = '{0:N2}' f $($Groupeddaystats |) Where {$_.} Name - eq "cpu.usage.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $dayCPUUsageMhzStat = '{0:N2}' f $($Groupeddaystats |) Where {$_.} Name - eq "cpu.usagemhz.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $dayReadystat = $Groupeddaystats | Where {$_.} Name - eq "cpu.ready.summation"} | Select-Object - ExpandProperty group | Measure-object-value average | Select-Object - ExpandProperty average

  $dayreadyvalue = [math]: tour ($(($dayReadystat / (300 * 1000)) * 100), 2)

  $Groupedweekstats is entity-Stat-get $vm - Stat $Stattypes - beginning (get-date). AddDays(-7)-done (get-date) - IntervalMins 30 - Instance ""-ErrorAction SilentlyContinue | MetricId Group-Object

  $weekCPUAverageStat = '{0:N2}' f $($Groupedweekstats |) Where {$_.} Name - eq "cpu.usage.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $weekCPUUsageMhzStat = '{0:N2}' f $($Groupedweekstats |) Where {$_.} Name - eq "cpu.usagemhz.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $weekReadystat = $Groupedweekstats | Where {$_.} Name - eq "cpu.ready.summation"} | Select-Object - ExpandProperty group | Measure-object-value average | Select-Object - ExpandProperty average

  $weekreadyvalue = [math]: tour ($(($weekReadystat / (1800 * 1000)) * 100), 2)

  $Groupedmonthstats is entity-Stat-get $vm - Stat $Stattypes - beginning (get-date). AddDays(-30)-done (get-date) - IntervalMins 120 - Instance ""-ErrorAction SilentlyContinue | MetricId Group-Object

  $monthCPUAverageStat = '{0:N2}' f $($Groupedmonthstats |) Where {$_.} Name - eq "cpu.usage.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $monthCPUUsageMhzStat = '{0:N2}' f $($Groupedmonthstats |) Where {$_.} Name - eq "cpu.usagemhz.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $monthReadystat = $Groupedmonthstats | Where {$_.} Name - eq "cpu.ready.summation"} | Select-Object - ExpandProperty group | Measure-object-value average | Select-Object - ExpandProperty average

  $monthreadyvalue = [math]: tour ($(($monthReadystat / (7200 * 1000)) * 100), 2)

  $Groupedyearstats is entity-Stat-get $vm - Stat $Stattypes - beginning (get-date). AddDays(-365)-done (get-date) - IntervalMins 1440 - Instance ""-ErrorAction SilentlyContinue | MetricId Group-Object

  $yearCPUAverageStat = '{0:N2}' f $($Groupedyearstats |) Where {$_.} Name - eq "cpu.usage.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $yearCPUUsageMhzStat = '{0:N2}' f $($Groupedyearstats |) Where {$_.} Name - eq "cpu.usagemhz.average"} | Select-Object - ExpandProperty group | Measure-object-value average | Select - Object - ExpandProperty average)

  $yearReadystat = $Groupedyearstats | Where {$_.} Name - eq "cpu.ready.summation"} | Select-Object - ExpandProperty group | Measure-object-value average | Select-Object - ExpandProperty average

  $yearreadyvalue = [math]: tour ($(($yearReadystat / (86400 * 1000)) * 100), 2)

  $data = New-Object psobject

  $data | Add-Member - MemberType NoteProperty-VM name-value $vm.name

  $data | Add-Member - MemberType NoteProperty-name VMTotalCPUs-value $VMCPUNumCpu

  $data | Add-Member - MemberType NoteProperty-name VMTotalCPUSockets-value $VMCPUSockets

  $data | Add-Member - MemberType NoteProperty-name VMTotalCPUCores-value $VMCPUCores

  $data | Add-Member - MemberType NoteProperty-Name ' in time real average usage % "-value $RealTimeCPUAverageStat

  $data | Add-Member - MemberType NoteProperty-name "Mhz real-time use" - value $RealTimeCPUUsageMhzStat

  $data | Add-Member - MemberType NoteProperty-Name "loans in time real %"-value $RealTimereadyvalue

  $data | Add-Member - MemberType NoteProperty-name ' day average use % "-value $dayCPUAverageStat

  $data | Add-Member - MemberType NoteProperty-name of the "day use Mhz"-value $dayCPUUsageMhzStat

  $data | Add-Member - MemberType NoteProperty-Name "ready day %"-value $dayreadyvalue

  $data | Add-Member - MemberType NoteProperty-"week average use name% '-value $weekCPUAverageStat

  $data | Add-Member - MemberType NoteProperty-Name "week use Mhz"-value $weekCPUUsageMhzStat

  $data | Add-Member - MemberType NoteProperty-"week loan name% '-value $weekreadyvalue

  $data | Add-Member - MemberType NoteProperty-' months average use name% '-value $monthCPUAverageStat

  $data | Add-Member - MemberType NoteProperty-Name "month use Mhz"-value $monthCPUUsageMhzStat

  $data | Add-Member - MemberType NoteProperty-' months loan name% '-value $monthreadyvalue

  $data | Add-Member - MemberType NoteProperty-name ' year average use % "-value $yearCPUAverageStat

  $data | Add-Member - MemberType NoteProperty-name ' year use Mhz "-value $yearCPUUsageMhzStat

  $data | Add-Member - MemberType NoteProperty-Name "ready year % '-value $yearreadyvalue

  $data | Add-Member - MemberType NoteProperty - name VMHost-$esxi.name value

  $data | Add-Member - MemberType NoteProperty-name VMHostCPUSockets-value $esxiCPUSockets

  $data | Add-Member - MemberType NoteProperty-name VMHostCPUCores-value $esxiCPUCores

  $data | Add-Member - MemberType NoteProperty-name TotalVMhostCPUs-value $TotalesxiCPUs

  $data

  } #foreach ($vm in $vmlist)

  } #foreach ($esxi in $(Get-VMHost $Name))

  } #process

  } #Function-prepare you

  Get-VMHost | Get ready

• RDY % <>- "VM CPU Ready Time (ms)"

  Hello

  I have a question resulting from the conversion of the value of loan from cpu.

  When I use extop, cpu ready is shown as % rdy, but when I am trying to create an alarm trigger, it is shown as "VM CPU Ready Time (ms)".

  Can you tell me, how can I convert % rdy rdy (ms)?

  Thank you very much

  Tobias

  You must configure this virtual machine that you cannot configure a default alarm for all machines. Because vCenter shows the time in ms, but this depends on the amount of vCPU so she should trigger an alarm or not.

  Have a look here, could start you will:

  http://en.community.Dell.com/TechCenter/virtualization/infrastructure/b/storage-blog/archive/2013/02/18/Configuring-CPU-ready-alarms-in-vCenter.aspx

• CPU Ready (ms) hidden metrics

  Hi all

  I noticed a strange problem. Some Machines virtual have the metric Use CPU -> loan (ms) and others do not. Someone Explain to me why he would know? I created a generic Dashboard to show this value for each VM and on some of them, instead of a numberit turns out that a blue "?" .
  
  Thank you

  
  

  Matrix
  

  vC Ops cannot collect data only if it is provided by vCenter. Open vCenter and go Performance > Advanced area, then see if the CPU Ready (ms) value contains data for virtual machines in question. If specific measures are not there, the vSphere hosts are not helped for some reason any (host host or communication question usually version). If they are, then vC Ops is not their collection and I would say check your packages attribute + vC Ops assignment is configured to collect.

• CPU.ready.summation of measurement when cpu.usage.average max

  Hi, I'm new in powercli,

  I use the following script to get cpu.usage.average mem.usage.average min, average, max, and the maximum of cpu.ready.summation

  I would like to correct also the cpu.ready.summation when the cpu.usage.average is max, and I can't!

  Here is my script:

  $allvms = @)
  $vms = get - Vm
  {foreach ($vm to $vms)
  $vmstat = "" | Select VmName, MemMax, MemAvg, MemMin, CPUMax, CPUAvg, CPUMin, CPURDYMax
  $vmstat. VmName = $vm.name
  $statcpu = get-Stat-entity ($vm) - start (get-date). AddDays(-1)-Finish (Get-Date) - MaxSamples 10000 - Intervalmins 30 - stat cpu.usage.average
  $statmem = get-Stat-entity ($vm) - start (get-date). AddDays(-1)-Finish (Get-Date) - MaxSamples 10000 - Intervalmins 30 - stat mem.usage.average
  $statcpurdy = get-Stat-entity ($vm) - start (get-date). AddDays(-1)-Finish (Get-Date) - MaxSamples 10000 - Intervalmins 30 - stat cpu.ready.summation
  $cpu = $statcpu | Measure-object-property value - average - Maximum - Minimum
  $mem = $statmem | Measure-object-property value - average - Maximum - Minimum
  $cpurdy = $statcpurdy | Measure-object-property value - average - Maximum - Minimum
  $vmstat. CPUMax = $cpu. Maximum
  $vmstat. CPUAvg = $cpu. Average
  $vmstat. CPUMin = $cpu. Minimum
  $vmstat. MemMax = $mem. Maximum
  $vmstat. MemAvg = $mem. Average
  $vmstat. MemMin = $mem. Minimum
  $vmstat. CPURDYMax = $cpurdy. Maximum
  $allvms += $vmstat
  }
  $allvms | Select VmName, MemMax, MemAvg, MemMin, CPUMax, CPUAvg, CPUMin, CPURDYMax | Export-Csv "c:\extract.csv" - noTypeInformation

  Best regards.

  OK, I hope that I finally got.

  Try this version. It indicates the maximum percentage of loan for the day.

  $allvms = @()
  $vms = Get-Vm  $start = (Get-Date).AddDays(-1)
  $metrics = "cpu.usage.average","mem.usage.average","cpu.ready.summation"
  Get-Stat -Entity $vms -Start $start -Stat $metrics |
  Group-Object -Property {$_.Entity.Name} | %{
    $cpu = $_.Group | where {$_.MetricId -eq "cpu.usage.average" -and $_.Instance -eq ""} | Measure-Object -Property value -Average -Maximum -Minimum  $mem = $_.Group | where {$_.MetricId -eq "mem.usage.average"} | Measure-Object -Property value -Average -Maximum -Minimum  $vmstat = "" | Select Time,VmName, MemMax, MemAvg, MemMin, CPUMax, CPUAvg, CPUMin, CPURDYMaxPercent  $vmstat.VmName = $_.Group[0].Entity.Name  $vmstat.Time = $_.Group | Sort-Object -Property Timestamp | Select -First 1 | Select -ExpandProperty Timestamp  $vmstat.CPUMax = $cpu.Maximum  $vmstat.CPUAvg = $cpu.Average  $vmstat.CPUMin = $cpu.Minimum  $vmstat.MemMax = $mem.Maximum  $vmstat.MemAvg = $mem.Average  $vmstat.MemMin = $mem.Minimum  $vmstat.CPURDYMaxPercent = &{
      ($_.Group | where {$_.MetricId -eq "cpu.ready.summation" -and $_.Instance -eq ""} |
      Sort-Object -Property Value -Descending |    Select -First 1 |
      Select -ExpandProperty Value)/$interval  }
    $allvms += $vmstat}
  $allvms | Select Time,VmName, MemMax, MemAvg, MemMin, CPUMax, CPUAvg, CPUMin, CPURDYMaxPercent |
  Export-Csv "c:\extract.csv" -noTypeInformation -UseCulture
  

• DRS and CPU % ready

  What VC & DRS seem to make decisions to migrate virtual machines with respect to the use of the processor?  Is it only in overall CPU utilization on ESX hosts in the cluster or is he looking at other factors such as the ready values % of CPU on the host computers?  For example, that you have a 16 core host and several 4 virtual computers vCPU that perform poorly and have very high CPU % ready times, but the overall use of the CPU on the host computer is low, DRS trying to rebalance these virtual machines?  Thank you.

  I made this request even in queries.  Now its only looking at the CPU usage and does not know about the other factors regarding the use of the CPU.

  I had some older hosts that while the CPU was used only to values of RDY % medium, about 30% were constantly 5-15 then it became unacceptable and once DRS passed everything was when one or more of the virtual machine started going to 100% on my old plug cores doubles one.  New hardware that resolved completely so (more than hearts) for me so it's not a problem anymore for me.

• Question about on VM consolidation number and percentage of CPU Ready

  Hi people,

  I'm trying to consolidate as many VM in simple ESXi servers on HP on AMD Opteron blades with 32 CPU available logic (based on the number on the vSphere console)

  Can anyone here please share some thoughts and comments about what is the best indication to avoid adding more VMS that ESXi hosts can treat?

  I must ensure that the number of vCPU altogether exceed is not 32 logic processor available, or it can be more than that?

  Running a script powershell LucD to collect CPU ready percentage shows that some virtual machines had prepared more than 10% CPU (for the most part 2 x vCPU) up to 22% (this one with 8 x vCPU)

  Hello

  I had the same situation on HP Blade and DL serer with two different CPU vendors.

  Intel CPU based on my experiences, has better performance compared to AMD CPU when the CPU is too committed on ESXi server.

  I have HP BL460c G6 and G7 on one of our sites, the server has 12 physical and 24 cores logic core.

  I assigned four cores to each customers (to fix the voice problem) and virtual machines are working properly, RDY CPU is less than 5% in general and there is no performance problem.

  Each blade server hosts 20 VMs and total virtual cores are 80 cores, so we attribute 1:3 (Physics: virtual) core.

  On the other hand, I DL585 G7 on our sites some server has 64 physical cores (4 Sockets and each catches have 16 cores). Servers host 50 active VMs usually but RDY CPU is greater than 10% or 7% on them. Total virtual cores are 200 and CPU assignment ratio is 3.

  I think that, if you want to optimize performance on AMD CPU, 1:1 or 1:2 CPU assignment report is the best choice.

• waiting for CPU and cpu ready

  Hello

  We have very high CPU wait times on our virtual machines (19000ms).

  We have also very low cpu ready time (20ms)

  I did notice on one of the 2 networks performance issues

  I was hoping someone could give, in terms laymans terms, a definition of waiting for cpu and cpu ready.   The technical definitions I've seen online were not very clear to me.

  Also - who would be initially high such a timeout of the CPU on the virtual machines?  It seems to be that the same time limit on all the VMs on the server whether or not they have 1 vcpu and memory 2 or how much they were awarded.

  Info about our server:

  HP Proliant ML350G6

  CPU cores: 4CPus x 2,555 GHz

  Processor type: Intel Xeon processor x 5550 @ 2.67 Ghz

  processor socets 1:

  Logical processors: 8

  Hyperthreading: assets

  No vm: 33 (especially Server 2003 Server VM)

  Enjoying any assistance.

  Kind regards

  Simon

  CPU wait time is the time a virtual machine did get on demand, but the processor has

  Nothing in the process and so the CPU to simply waiting for then the time scheduled for the virtual

  machine clicks by.

  CPU Ready is the time that the virtual machine is ready, but could not get scheduled to run on the physical processor.

  Bascially ready cpu the prompt is queued on the host computer, waiting for cpu means that the host is queued on the prompt.

• Question about CPU Ready time %

  Hello Vmware experts.

  Small question about time loan cpu in esxtop. I have a couple of the virtual machine that has been entrusted to 4 vCPU. When you view their stats in esxtop they indicate the highest term of loan from CPU. I was wondering if this figure is the result of adding the ready time of each vCPU? For example, a 4 x vCPU VM with ready time of 10%, does it really mean 2.5% by vCPU? Should I be concerned about ready time of 10%? I read that the multiple assignment of vCPU can unnecessarily cause time CPU ready. How others decide on how many vCPU they must assign to VM here?

  OK, just realised that was more than just a small question... anyway, would be great if someone could make all this a bit clearer for me.

  Thank you

  BTW, my hosts CPU usage to sit at an average of 25%.

  In vSphere they eased the scheduling of multiple vCPU co even more so that only the vCPU who got ahead of the rest is stopped.  It is always advisable to start with a single vCPU and work your way up if necessary.

  In esxtop you can use the e command to extend the CPU statistics.  In several vCPU machines this will let you see the playing time of each CPU (which should add until you have seen earlier) and it will also allow you to see the % used for each processor.  This should allow you to see if the two vCPU are properly used in a box of vCPU multi.   I had also the CSTP % field shows which is the stop of co and will give you an indiciation of how often vCPU on the machine stopped to allow the other CPU to stand.

  Great pdf on the CPU scheduler in vSPhere can be found here http://www.vmware.com/files/pdf/perf-vsphere-cpu_scheduler.pdf

  If you have found this device or any other useful post please consider the use of buttons useful/correct to award points

  Twitter: http://twitter.com/mittim12

• CPU Ready, the processor affinity, and why I don't seem to get the expected performance

  I have a host that is a physical 2 Quad core 2.66 Ghz socket with 10 GB of RAM.  3i ESX 3.5 is installed.  I have only 2 virtual machines on this computer.  Everyone has 4vCPU and 4 GB of RAM.

  When virtual machines are idle and the app is works not only I see low CPU utilization and CPU Ready is a modest 100-200 on each processor.  When the application is not running, the CPU usage rises to about 10,000 MHz as expected.   However, CPU Ready also climbs to 6000-9000ms, which is by FAR more than I expect.

  I have set the processor affinity for one of the virtual machines gets 0-3 and the other 4-7.

  Why CPU ready would be mounted so high?  With only these 2 VM I would expect ready to be almost 0 CPU.

  Remember however each VM has 4 vCPUs with your two virtual machines that you will use all 8 cores as well as the service (which is still running on cpu0) console and vmkernel so there will certainly be contention climb CPU ready time - first question do you really need quad vcpu? You can try a simple vcpu - if you need to start vSMP with dual vcpu virtual - also do NOT set affinity let the vmkernel annex vms approriately

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• Time CPU Ready for terminal servers

  I just started a job last week and my first task is to examine the virtual infrastructure. The first thing that stood out to me was our Terminal Server cluster configuration. For example, we have an ESXi host (in this cluster) with 12 physical processors and 24 logical processors. This host ESXi as eight Terminal Server computers virtual running on it. Seven of these Terminal servers have 12vCPUs EACH! The other has 8 vCPUs. When I look each time loan of virtual machines on average CPU during the week, averages of these varied from 10% on the lower end to 13% on the high end. Again, I take vCenter Performance averages. The maximum rates are much higher than that. The ratio goes down to about 3.8 vCPUs each logical processor.

  I would like to know if this time there ready CPU seems high to someone else, and what have you seen that average delays in loan CPU in environments with Terminal servers of your VM? I know that the issue involved applications and environment everyone will be different, but I'm looking for a little guidance.

  Thanks in advance!

  Ouch.

  I always raise an eyebrow, when someone mentions that they 'need' more than 2 vCPU on a server terminal server.
  RDS and Citrix servers receive scale vs scale up.  Multiple virtual machines with 2-4 vCPU and 8-12 GB of memory.  Of course, there is that of outliers but servers Citrix typical application has hit a sweet spot in the Gb 2 vCPU/8-12 range.

  3/1 the ratios are pretty typical.

  Must love ESXtop. Discover the bible ESX here.

  Esxtop statistical interpretation

  I would say between 5-10 is getting 'high' % RDY.  But it is really end user experience as well.  Users experience performance problems?  The usual causes of high allowances are a lack of understand how to properly change a virtual machine for the workload.  Often other problems are the root cause, but virtual memory and CPU are the easiest thing to just throw to solve the problem. Networking and storage for example are often the root causes.

  Other things, I'd be curious to know.

  • Did you by chance in a Resource Pool?
  • Are there limits to any CPU together on these virtual machines or you see no MLMTD % figures appearing for these virtual machines?
  • You see figures of the CSTP % for one of your virtual machines?

  I just took a peek at a sample of about 20 servers Citrix on one of our guests and we see % times of the RDY to .0x to the values of X 1.4.

  My suggestion would be to stop some VM, select hot and a sample group up to of 2vCPU and have users test performance while you keep a watchful eye on ESXtop.

  I hope this helps!

• Very high values of CPU Vcore

  Hello

  After that I noticed that my MacBook Pro (15 ", mid-2014, 2.2 GHz Intel Core i7, El Capitan) started running without apparent heavy load, I installed iStat Menus to check the temperature of my hardware.

  The time seemed right, however I noticed that the CPU VCore values were extremely high, being around 1.77 V, while I knew that they were not supposed to exceed 1.40!

  I tried to reset the SMC, but statistics are the same.

  Here is a screenshot of them:

  

  I'm not overclocking my computer.

  The values of VCore supposed to be so high on this model? I tried searching online, I found another user with the same questions but no answers.

  Hi Oceansoul221,

  I have exactly the same problem after I noticed that my macbook runs just stupidly hot, I think I use the same as you, but with the 2.5 Ghz i7 (which I think is the i7-4870HQ model) and the GT 750 M. Given my experience with desktop processors a Vcore of 1, 8V is crazy, which probably makes me think the reporting software may be wrong (may be an estimate rather than an actual reading). Or it could also be this laptop CPU variants are very different to the Office counter parties (but I could not find the technical information of intel). I checked the Vcore on an old laptop of mine using an i5 - 2520 m and is not further 1.150V on the vcore. I contacted the manufacturer of the app and intel, for more information. Will run some tests on my bootcamp windows partition (where I have a better knowledge of the measurement software), will let you know.

• setting the appropriate values of cpu for bb-cputab

  I never fully understood how Big Brother uses the running time between (unix) operating systems to determine the values of the cpu.

  Is there a form published to determine what the correct values must be defined for the file bb-cputab in BBHOME/etc/for more specific notifications?

  as the CPU test is based on the average of the load. Usually, a THE of 1.00 is optimal (a 1.00 availability means 100 in BB jargon, the comma is removed). So by default, yellow is set to 150 and 300 red. By experience, he has been on these values, otherwise, if they were lower would be more false positives. That said, some operating systems (I think Solaris is like that), aggreate load average all processors and not the average, so if you have a 4cpu server, yellow must be red and 600-1200. make sense?

• Returns the value limit, CPU/RAM booking for all virtual machines

  How can I add a reservation of VMs and limit for CPU and RAM to it?  Thank you.

  {foreach ($vm in Get - VM)
  $guest = get-VMGuest - VM $vm
  $row = "" | Select VMName, TotalMemory TotalCPU,

  $row. VMName = $vm. Name
  $row. TotalMemory = $vm.memorymb
  $row. TotalCPU = $vm.numcpu
  }

  Use the Get-VMResourceConfiguration cmdlet.