Hyperthreaded CPU Scheduling via Hyper-V

I searched forums and documents (and books) all over for this answer pertaining to Hyper-V.
When a guest VM is assigned 2 virtual CPUs with 100% reservation on a Hyper-V host with a processor featuring hyper-threading, does the guest VM receive guaranteed access to two
physical cores or two logical cores? For a thought experiment, on a single socket 2-core processor with hyper threading (4 logical cores), from my understanding Hyper-V takes physical core 0 by default leaving a single
physical core for VMs. What would be the result of configuring a VM with 2 virtual CPUs on this host with 100% reservation? Would you be allowed to? Would the vCPU scheduling be across two logical processors or would the VM fail to start
because it requires two physical cores?

Hi Nickmeister,
"So,a virtual machine’s CPU count means the maximum number of threads that it is allowed to operate on physical cores at any given time. I can’t set that virtual machine to have more than two vCPUs because the host only has two CPUs. Therefore,
there is nowhere for a third thread to be scheduled. But, if I had a 24-core system and left this VM at 2 vCPUs, then it would only ever send a maximum of two threads up to the hypervisor for scheduling. Other threads would be kept in the guest’s thread scheduler
(the supervisor), waiting their turn. "
Based on my understanding , we can image the procedure of physical cpu processing can be divided to alot of
time slices , more than one thread can be scheduled/switched to be processed by a processor/core .
Hope the following article is helpful to you regarding to CPU reserve in hyper-v :
http://blogs.msdn.com/b/virtual_pc_guy/archive/2011/02/17/hyper-v-cpu-scheduling-part-1.aspx
Also :
http://blogs.technet.com/b/redpill/archive/2011/02/19/hyper-v-cpu-scheduling.aspx
Best Regards
Elton Ji
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ERROR in Scheduling via Transaction-IP30

Hello Gurus,
When I am scheduling the maint plan 1234, system is throwing Error message IP202-Maintenance plan 000000001234 NOT scheduled.
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Tasklist is attached.
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Counter (Category M) is having character unit as "minute".
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Everything is fine up to this step.
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This is very strange to me.
I'll really appreciate for your efforts.
Best Regards,
Ganesh.

Hi All,
Thanks for your response.
Details of Maintenance Plan and Call Object:
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Counter: Characteristic (say RUNTIME) with Unit Min
Task List: General task list assigned
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I've created 4-5 measuring documents.
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Still I am getting same error.
I'll urge please consider I am using ECC5.0
Request you to guide me what went wrong....
Call Object is Preventive Order (PM02)
Regards,
Ganesh

[Forum FAQ] Cannot perform a backup schedule via Windows Server Backup and receive "The system cannot find the path specified." Error

Symptom One
You attempt to
schedule a backup every day via Windows Server Backup on Windows Server 2008 R2. At the beginning, the backup works without issue. But after a few days it failed and you receive the error “Windows Server Backup:
The system cannot find the path specified.”
Cause
The issue may occur if there is
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Verify
You can use the List ShadowStorage command to check if you have enough storage space to store the newly created shadow copy. If you've reviewed the size of the backup snapshot and discovered
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More Information
Vssadmin resize shadowstorage
http://technet.microsoft.com/en-us/library/cc788050.aspx
Symptom Two
When you add
another external hard drive to backup schedule via Windows Server Backup on Windows Server 2012, it fails and you receive the error “The System cannot find the path specified.”
Cause
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Verify
You could check the disk status in Disk Management to see if the Original Destination Disk is offline or removed.
Solution
You need to attach
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Workaround
To work around this issue, please use the WBADMIN command line tool to add disk.
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WBADMIN ENABLE BACKUP
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More Information
Wbadmin enable backup
http://technet.microsoft.com/en-us/library/cc742130.aspx
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

good

Servlet CPU Scheduling

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naruto8 wrote:
write a program in any language that will simulate cpu scheduling SRTF.
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Windows 2008 R2 CPU Scheduling

I have a Windows 2008 R2 Vmware VM running one application published by Citrix. I noticed the CPU usage spiked to 100% while doing an EDI export to MS Excel 2010. I increased the CPU cores by one totaling 1 Socket 6 cores. Now core 0 is higher than the other
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You can also tune the priority of CPU shares through Windows System Resource Manager (WSRM), an optional server feature used for managing processor and memory usage. WSRM's new built-in policy Weighted_Remote_Sessions can be used to assign users and
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Problem Scheduling via cmc,multiply copies are being send

Post Author: babutang
CA Forum: Administration
hello , im Scheduling a webi report via the cmc Schedule option. Destination - Email (SMTP) The values to be used at schedule time are set manually. Schedule For option is set to be Schedule for specified user groups. The problem is that the emails recipients specified in the destination are Receiving as many copies as the user groups users. For example: if i have 6 users under "x group" which i chose at the "group Schedule For option" , each one of them will recive 6 copies of the report. if i have 3 users under "x group" each one of them will recive 3 copies of the report. hope i'm clear Enough. thank u.problem Scheduling via cmc,multiply copies are being send

Post Author: stick_slinger
CA Forum: Administration
Hi
Are you using the Job Server defaults for the Email - SMTP destination? I wouldn't use the "Schedule for" here unless you've got Universe Restrictions for these users and you're Multi-Pass Bursting the report.
Destination - Email (SMTP) untick the "Job server defaults" option
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How to install Solaris 9 connected via Hyper Terminal

Hi All ,
We have planned to Install Solaris 9 in E250. We have connected the console throgh Hyper Terminal.
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Seeing as the Windows System Resource Manager was removed from 2012 R2 how do admins prevent a user’s session from killing a server CPU wise?
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Hi,
Thank you for posting in Windows Server Forum.
For your case, I can suggest you to use Fairshare CPU Scheduling option. With this feature, if more than one user is logged on a system, processing time is limited for a given user based on the number of sessions and their loads. You can GPO setting “Turn off
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Resource Sharing in Windows Remote Desktop Services
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Hey there :) ,
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PS Scheduling via Windows Task Scheduler

Hi All,
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Task Action:
Program: Have tried
powershell
powershell.exe
%windir%\system32\WindowsPowerShell\v1.0\powershell.exe
%windir%\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
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(The c:\powershell has been substituted by .\ when "start in" populated also as a test and I have also tried the shorthand version of commands such as -c instead of -command)
All of the below have been run prefixed with nothing, -file and then -command (not at the same time)
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("C:\Powershell\APIMonthlyWSUSCleanup.ps1")
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"{C:\Powershell\APIMonthlyWSUSCleanup.ps1}"
{"C:\Powershell\APIMonthlyWSUSCleanup.ps1"}
&{C:\Powershell\APIMonthlyWSUSCleanup.ps1}
&"C:\Powershell\APIMonthlyWSUSCleanup.ps1"
&'C:\Powershell\APIMonthlyWSUSCleanup.ps1'
{&"C:\Powershell\APIMonthlyWSUSCleanup.ps1"}
&{"C:\Powershell\APIMonthlyWSUSCleanup.ps1"}
(&"C:\Powershell\APIMonthlyWSUSCleanup.ps1")
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C:\Powershell\
C:\Powershell
Last Run Result: 0x0 & 0xFFFD0000
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If there is one command that you think should work please let me know so I can try it and post back the exact result for that command.
FYI - I have also tried to run this using CMD and parsing the powershell.exe in the arguments; I'm not keen on doing it that way though due to the string length limitations for future usage.
Cheers

There was two ) ) after param ([String]str$))
Here is corrected version (Add line to show the date)
Param ([string]$p) # Parameter for test.ps1
function LogParameter {
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I tested with a domain\user with domain admins rights. (Selected Run whether user is logged on or not)
I set the task to run every 5 minutes indefinitely
At the bottom the page of the Settings tab, I selected "Stop the existing instance" from the list.
I checked c:\Powershell\test.txt and it shows it is going every 5 minutes.
In the task manager details page, I can see taskeng.exe running for the doman\user

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Also there's 0 reason to mention Hyper-V here. The whole point of virtualization is to do hardware level abstraction.

I recently encountered this. Setup:
Initial setup of the system was at a different location from its final destination, with different network equipment (switches) between the two. No teaming is involved, however.
Set up the system at its final destination, with DHCP via a Hyper-V VM (Server2012r2), Server2012r2 Hyper-V host, physical clients on the lan were not getting IP address.
The physical server box has a 4-port Intel Gigabit ethernet card.
I moved the setup (Hyper-V Virtual Switch manager) so that the interface for the DHCP server VM was isntead using one of two built-in Broadcom adapters.
While this topic seemed promising,
http://community.spiceworks.com/topic/251317-hyper-v-vm-not-leasing-ip-s-dhcp
unfortunately, "fiddling about" was not what I was looking for as possible solution.
My notes for the resolution:
Hyper-V system running...
This topic first appeared in the Spiceworks Community

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However, I cannot find more information about CONFIG_SCHED_MC. I don't need/want CONFIG_SCHED_SMT since /proc/cpuinfo indicates I don't have hyperthreading. (e.g. siblings = cpu cores).
Could anyone sched (hihi) some light on this? The Kconfig yields not much information. Google yielded only a Gentoo forum post indicating the difference between SMT and MC. Grepping through the kernel sources only shows CONFIG_SCHED_MC in /kernel/sched/core.c with very little information.
The only thing I found is a powersaving tunable, but that's it!
One paper seems to explain this in more detail here.
Is that all there is?

Ah, found it here.

Generate Delivery Schedules via MRP Planning run

The company wants to create Scheduling Agreements and generate the Delivery Schedules from the MRP Planning run - MRP 2 view via JIT.
Can you generate Delivery Schedules from Schedule Agreements if the company does not have an EDI server or APO set up?
Thanks,

Shirley Globe,
You seem to be putting the experts to the test.
As it was told you, you can generate schedule lines via MRP run. MRP run can be done (e.g.) trough MD01 /MD02 / MD03. Of course, you have to use the proper selection parameters to achieve your goal.
http://help.sap.com/erp2005_ehp_04/helpdata/EN/f4/7d2da044af11d182b40000e829fbfe/frameset.htm
As for how to use SA with MRP please check SAP online help:
http://help.sap.com/erp2005_ehp_04/helpdata/EN/3b/66596eda7b11d1b6330000e8a738dc/frameset.htm
Regards,
Csaba
Edited by: Csaba Szommer on Apr 9, 2009 7:40 PM

Hyperthreaded CPU Scheduling via Hyper-V

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