Hyper-V VMs memory utilization

Hi,
Please let me know the WMI class (query) to check the memory utilization for all the VMs under the Hyper-V host.
Thanks & Regards,
Raamesh Keerthi N J

Hi ,
I would recommend you to use powershell command " Get-vm " to get the memory usage of the VM .
As for using WMI to get the VM's memory usage(I am assuming you are using server2012r2 ) , please try the command below :
$RequestInfo = 1,103,112
$VmInfo = Get-WmiObject -namespace root\virtualization\v2 -class msvm_virtualsystemmanagementservice
$VmInfo.getsummaryinformation($null,$RequestInfo).summaryinformation
For the WMI class syntax please refer to following article :
http://blogs.msdn.com/b/virtual_pc_guy/archive/2013/04/29/powershell-script-to-tell-you-if-you-need-to-update-your-integration-services.aspx
If you have further more question about WMI , please post it here :
http://social.technet.microsoft.com/Forums/en-us/home?forum=ITCG&filter=alltypes&sort=lastpostdesc
Best Regards
Elton Ji
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

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Windows Server 2012 High Memory Utilization(Three Hyper-V Instance Configure in this Server For Lync)

Hello There,
Issue: High Memory Utilization in Below Scenario. Pl. See the below configuration of Win 12 Server
Pl. see for committed memory bytes . m little bit confused that about committed memory
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Virtual memory system. Committed memory is the physical memory for which space has been reserved in the disk paging file. So, you are paging, which is quite common in virtual memory systems.
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Hi,
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Follow up on an old thread about memory utilization

This thread was active a few months ago, unfortunately its taken me until now
for me to have enough spare time to craft a response.
From: SMTP%"[email protected]" 3-SEP-1996 16:52:00.72
To: [email protected]
CC:
Subj: Re: memory utilization
As a general rule, I would agree that memory utilzation problems tend to be
developer-induced. I believe that is generally true for most development
environments. However, this developer was having a little trouble finding
out how NOT to induce them. After scouring the documentation for any
references to object destructors, or clearing memory, or garbage collection,
or freeing objects, or anything else we could think of, all we found was how
to clear the rows from an Array object. We did find some reference to
setting the object to NIL, but no indication that this was necessary for the
memory to be freed.
I believe the documentation, and probably some Tech-Notes, address the issue of
freeing memory.
Automatic memory management frees a memory object when no references to the
memory
object exist. Since references are the reason that a memory object lives,
removing
the references is the only way that memory objects can be freed. This is why the
manuals and Tech-Notes talk about setting references to NIL (I.E. freeing memory
in an automatic system is done by NILing references and not by calling freeing
routines.) This is not an absolute requirement (as you have probably noticed
that
most things are freed even without setting references to NIL) but it accelerates
the freeing of 'dead' objects and reduces the memory utilization because it
tends
to carry around less 'dead' objects.
It is my understanding that in this environment, the development tool
(Forte') claims to handle memory utilization and garbage collection for you.
If that is the case, then it is my opinion that it shoud be nearly
impossible for the developer to create memory-leakage problems without going
outside the tool and allocating the memory directly. If that is not the
case, then we should have destructor methods available to us so that we can
handle them correctly. I know when I am finished with an object, and I
would have no problem calling a "destroy" or "cleanup" method. In fact, I
would prefer that to just wondering if Forte' will take care of it for me.
It is actually quite easy to create memory leaks. Here are some examples:
Have a heap attribute in a service object. Keep inserting things into
the heap and never take them out (I.E. forgot to take them out). Since
service objects are always live, everything in the heap is also live.
Have an exception handler that catches exceptions and doesn't do
anything
with the error manager stack (I.E. it doesn't call task.ErrMgr.Clear).
If the handler is activated repeatedly in the same task, the stack of
exceptions will grow until you run out of memory or the task terminates
(task termination empties the error manager stack.)
It seems to me that this is a weakness in the tool that should be addressed.
Does anyone else have any opinions on this subject?
Actually, the implementation of the advanced features supported by the Forte
product
results in some complications in areas that can be hard to explain. Memory
management
happens to be one of the areas most effected. A precise explanation to a
non-deterministic process is not possible, but the following attempts to
explain the
source of the non-determinism.
o The ability to call from compiled C++ to interpreted TOOL and back
to compiled C++.
This single ability causes most of the strange effects mentioned in
this thread.
For C++ code the location of all variables local to a method is not
know
(I.E. C++ compilers can't tell you at run-time what is a variable
and what
isn't.) We use the pessimistic assumption that anything that looks
like a
reference to a memory object is a reference to a memory object. For
interpreted
TOOL code the interpreter has exact knowledge of what is a reference
and what
isn't. But the TOOL interpreter is itself a C++ method. This means
that any
any memory objects referenced by the interpreter during the
execution of TOOL
code could be stored in local variables in the interpreter. The TOOL
interpreter
runs until the TOOL code returns or the TOOL code calls into C++.
This means
that many levels of nested TOOL code can be the source of values
assigned to
local variables in the TOOL interpreter.
This is the complicated reason that answers the question: Why doesn't a
variable that is created and only used in a TOOL method that has
returned
get freed? It is likely that the variable is referenced by local
variables
in the TOOL interpreter method. This is also why setting the
variable to NIL
before returning doesn't seem to help. If the variable in question is a
Array than invoke Clear() on the Array seems to help, because even
though the
Array is still live the objects referenced by the Array have less
references.
The other common occurrence of this effect is in a TextData that
contains a
large string. In this case, invoking SetAllocatedSize(0) can be used
to NIL
the reference to the memory object that actually holds the sequence of
characters. Compositions of Arrays and TextData's (I.E. a Array of
TextData's
that all have large TextDatas.) can lead to even more problems.
When the TOOL code is turned into a compiled partition this effect
is not
noticed because the TOOL interpreter doesn't come into play and
things execute
the way most people expect. This is one area that we try to improve
upon, but it is complicated by the 15 different platforms, and thus
C++ compilers,
that we support. Changes that work on some machines behave
differently on other
machines. At this point in time, it occasionally still requires that
a TOOL
programmer actively address problems. Obviously we try to reduce
this need over
time.
o Automatic memory management for C++ with support for multi-processor
threads.
Supporting automatic memory management for C++ is something that is
not a very
common feature. It requires a coding standard that defines what is
acceptable and
what isn't. Additionally, supporting multi-processor threads adds
its own set of
complications. Luckily TOOL users are insulated from this because
the TOOL to C++
code generator knows the coding standard. In the end you are
impacted by the C++
compiler and possibly the differences that occur between different
compilers and/or
different processors (I.E. Intel X86 versus Alpha.) We have seen
applications that
had memory utilization differences of up to 2:1.
There are two primary sources of differences.
The first source is how compilers deal with dead assignments. The
typical TOOL
fragment that is being memory manager friendly might perform the
following:
temp : SomeObject = new;
... // Use someObject
temp = NIL;
return;
When this is translated to C++ it looks very similar in that temp
will be assigned the
value NULL. Most compilers are smart enough to notice that 'temp' is
never used again
because the method is going to return immediately. So they skip
setting 'temp' to NULL.
In this case it should be harmless that the statement was ignored
(see next example for a different variation.) In more
complicated examples that involve loops (especially long
lived event loops) a missed NIL assignment can lead to leaking the
memory object whose
reference didn't get set to NIL (incidentally this is the type of
problem that causes
the TOOL interpreter to leak references.)
The second source is a complicated interaction caused by history of
method invocations.
Consider the following:
Method A() invokes method B() which invokes method C().
Method C() allocates a temporary TextData, invokes
SetAllocatedSize(1000000)
does some more work and then returns.
Method B() returns.
Method A() now invokes method D().
Method D() allocates something that cause the memory manager to look
for memory objects to free.
Now, even though we have returned out of method C() we have starting
invoking
methods. This causes us to use re-use portions of the C++ stack used to
maintain the history of method invocation and space for local variables.
There is some probability that the reference to the 'temporary' TextData
will now be visible to the memory manager because it was not overwritten
by the invocation of D() or anything invoked by method D().
This example answers questions of the form: Why does setting a local
variable to
NIL and returning and then invoking task.Part.Os.RecoverMemory not
cause the
object referenced by the local variable to be freed?
In most cases these effects cause memory utilization to be slightly
higher
than expected (in well behaved cases it's less than 5%.) This is a small
price to pay for the advantages of automatic memory management.
An object-oriented programming style supported by automatic memory
management makes it
easy to extended existing objects or sets of objects by composition.
For example:
Method A() calls method B() to get the next record from the
database. Method B()
is used because we always get records, objects, of a certain
type from
method B() so that we can reuse code.
Method A() enters each row into a hash table so that it can
implement a cache
of the last N records seen.
Method A() returns the record to its caller.
With manual memory management there would have to be some interface
that allows
Method A() and/or the caller of A() to free the record. This
requires
that the programmer have a lot more knowledge about the
various projects
and classes that make up the application. If freeing doesn'
happen you
have a memory leak, if you free something while its still
being used the
results are unpredictable and most often fatal.
With automatic memory management, method A() can 'free' its
reference by removing
the reference from the hash table. The caller can 'free' its
reference by
either setting the reference to NIL or getting another
record and referring
to the new record instead of the old record.
Unfortunately, this convenience and power doesn't come for free. Consider
the following,
which comes from the Forte' run-time system:
A Window-class object is a very complex beast. It is composed of two
primary parts:
the UserWindow object which contains the variables declared by the
user, and the
Window object which contains the object representation of the window
created in
the window workshop. The UserWindow and the Window reference each
other. The Window
references the Menu and each Widget placed on the Window directly. A
compound Window
object, like a Panel, can also have objects place in itself. These
are typically
called the children. Each of the children also has to know the
identity of it's
Mom so they refer to there parent object. It should be reasonably
obvious that
starting from any object that make up the window any other object
can be found.
This means that if the memory manager finds a reference to any
object in the Window
it can also find all other objects in the window. Now if a reference
to any object
in the Window can be found on the program stack, all objects in the
window can
also be found. Since there are so many objects and the work involved
in displaying
a window can be very complicated (I.E. the automatic geometry
management that
layouts the window when it is first opened or resized.) there are
potentially many
different reference that would cause the same problem. This leads to
a higher than
normal probability that a reference exists that can cause the whole
set of Window
objects to not be freed.
We solved this problem in the following fashion:
Added a new Method called RecycleMemory() on UserWindow.
Documented that when a window is not going to be used again
that it is
preferably that RecycleMemory() is invoked instead
of Close().
The RecycleMemory() method basically sets all references
from parent to
child to NIL and sets all references from child to
parent to NIL.
Thus all objects are isolated from other objects
that make up
the window.
Changed a few methods on UserWindow, like Open(), to check
if the caller
is trying to open a recycled window and throw an
exception.
This was feasible because the code to traverse the parent/child
relationship
ready existed and was being used at close time to perform other
bookkeeping
operations on each of the Widgets.
To summarize:
Automatic memory management is less error prone and more productive but
doesn't come totally for free.
There are things that the programmer can do that assists the memory
manager:
o Set object reference to NIL when known to be correct (this
is the
way the memory is deallocated in an automatic system.)
o Use methods like Clear() on Array and SetAllocatedSize()
on TextData to
that allow these objects to set their internal
references to NIL
when known to be correct.
o Use the RecycleMemory() method on windows, especially very
complicated
windows.
o Build similar type of methods into your own objects when
needed.
o If you build highly connected structures that are very
large in the
number of object involved think that how it might be
broken
apart gracefully (it defeats some of the purpose of
automatic
management to go to great lengths to deal with the
problem.)
o Since program stacks are the source of the 'noise'
references, try
and do things with less tasks (this was one of the
reasons that
we implemented event handlers so that a single task
can control
many different windows.)
Even after doing all this its easy to still have a problem.
Internally we have
access to special tools that can help point at the problem so that
it can be
solved. We are attempting to give users UNSUPPORTED access to these
tools for
Release 3. This should allow users to more easily diagnose problems.
It also
tends to enlighten one about how things are structured and/or point out
inconsistencies that are the source of known/unknown bugs.
Derek
Derek Frankforth [email protected]
Forte Software Inc. [email protected]
1800 Harrison St. +510.869.3407
Oakland CA, 94612

I beleive he means to reformat it like a floppy disk.
Go into My Computer, Locate the drive letter associated with your iPod(normally says iPod in it, and shows under removable storage).
Right click on it and choose format - make sure to not have the "quick format" option checked. Then let it format.
If that doesnt work, There are steps somewhere in the 5th gen forum( dont have the link off hand) to try to use the usbstor.sys to update the USB drivers for the Nano/5th gen.

How to measure JSP Memory Utilization

I'm trying to build a tool that will tell me how much resources a JSP is consuming. Am using 1.4.2_14. I'm using a static heap size (1GB) and -Xgc:singlepar. I've created a filter that does a Runtime.totalMemory () - Runtime.freeMemory () before and after a chain to the JSP. To test this I built a simple JSP that I call from a shell script with curl:
<%
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Object[] o = new Object[alloc];
for (int i = 0; i < o.length; i++)
o[i] = new Object ();
if (null != request.getParameter("clean"))
for (int i = 0; i < o.length; i++)
o[i] = null;
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out.println("Done with " + o.length);
%>
When running this JSP repeatedly starting with a allocation of 131,064 objects I get a heap growth of 0 until I increment to 131,067. Then I seem to get good information but every so often I'll see a 18MB bump in memory. The size I get for heap growth at 131,067 is 512,288 bytes.
Why can't I see any memory utilization below 512KB?
What is this 18MB bump in memory?
Is there a way for me to get a more accurate measurment?
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It's possible that the totalMemory() and freeMemory() calls are not 100% exact all the time; I don't remember exactly how that info is gathered.
There is a way to get very exact memory consumption with JR. Mail me for details.
-- Henrik

How to display CPU and memory utilization from ST06 in a report

Hi,
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Thanks,
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Hi Ranganath,
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Re: memory utilization

Thanks to all who responded to my question about memory utilization. There
were some good suggestions that I will follow up on. I am very grateful for
the help.
As a general rule, I would agree that memory utilzation problems tend to be
developer-induced. I believe that is generally true for most development
environments. However, this developer was having a little trouble finding
out how NOT to induce them. After scouring the documentation for any
references to object destructors, or clearing memory, or garbage collection,
or freeing objects, or anything else we could think of, all we found was how
to clear the rows from an Array object. We did find some reference to
setting the object to NIL, but no indication that this was necessary for the
memory to be freed.
It is my understanding that in this environment, the development tool
(Forte') claims to handle memory utilization and garbage collection for you.
If that is the case, then it is my opinion that it shoud be nearly
impossible for the developer to create memory-leakage problems without going
outside the tool and allocating the memory directly. If that is not the
case, then we should have destructor methods available to us so that we can
handle them correctly. I know when I am finished with an object, and I
would have no problem calling a "destroy" or "cleanup" method. In fact, I
would prefer that to just wondering if Forte' will take care of it for me.
It seems to me that this is a weakness in the tool that should be addressed.
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DPM 2012 R2 Backup job FAILED for some Hyper-v VMs and Some Hyper-v VMs are not appearing in the DPM

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Thanks

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Once you feel as though you are on the right track, have a look at:
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I gather that what you need is:
1.3.6.1.4.1.9.9.305.1.1.1
and
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http://www.oidview.com/mibs/9/CISCO-SYSTEM-EXT-MIB.html
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1.3.6.1.4.1.9.9.305.1.1.2
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Kindly regards
David Mayer

Hello,
I have the same problem. First time I've tried to upgrade memory from 8gb to 16gb but I am still experiencing same issues (Memory is running on 98%). I'm not sure exactly what process it is causing this issue, because when I've checked all proccesses from all users running on this server and count them there is no 15 gb at all. My guess is the same for tomcat server which is responsible for RME collector, or correct me if I'm wrong.
Do you have any idea what can cause this problem.
I've tried to upgrade then to Cisco works Prime lan management 4.1, but server went with same issues.
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CiscoWorks LMS 4.0.1 High Memory Utilization on Windows 2K8 R2

Hi,
What causes LMS 4.1 to have high memory utilization?

I made a little batch
https://supportforums.cisco.com/docs/DOC-21031
It show what process in LMS is eating you RAM / Hogging the CPU.
I don't think resources are used very effectivly in LMS
I did have the impression that some virtual machines running LMS 3.2 actually performed better than real machines, as if the VMware saw it load all these java virtual machines and that it was 45 times the same thing only being used for a few % and therefore could be swapped to disk, leaving the resources to what was actually working in LMS.
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Cheers,
Michel

Memory utilization presented in Application Server Control

Hi
I have Oracle Application Server 10g R3 Patch Set 5 application server, which work in cluster. On mian page in Oracle Application Server Control I have memory column, where I can see information about memory utilization. I wonder about this information. For example, I have heap size set for 2 GB and application uses 300MB, but I have on main page Application Server Control 900 MB memory utilization for OC4J container. Why is so difference between use heap space memory (only 300 MB), and this information 900 MB? But sometimes, memory in Server Control rises to 2 GB, but application uses 300 MB heap space still. Why does occur this situation (much difference between uses heap space and memory presented on Server Control)?
Thanks awfully for help.
Regards
Edited by: Luk004 on 2012-01-16 03:30

> Central Instance : 1.2GB is physical memory is free out of 12GB.
> App1 Instance: 400MB is physical memory is free out of 10GB.
> App2 Instance: 2GB is physical memory is free out of 14GB.
>
> Right now, no background for dialog process are running in any of the three instances but still ocuupy lot of physical memory.
>
> Questions: How to calculate memory in ECC and where could be the rest of memory defined in system? No process is running and all memory seem to be consumed.
Memory is allocated
- by the operating system itself
- by the database (SGA_TARGET)
- by the application server buffers (ST02 et al)
- by the operating system as filesystem cache (if you e. g. use VxFS you may configure the memory consumption)
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even the show crashinfo could give you useful info.
show crashinfo
: Saved_Crash
Thread Name: vpnfo_thread_msg (Old pc 0x00b47b80 ebp 0x01c60634)
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http://www.cisco.com/en/US/docs/security/pix/pix70/release/notes/pix704rn.html#wp32426
It could be a known bug solved in newer image.
Here you can find useful info to perfom a zer o downtime upgrade.
http://www.cisco.com/en/US/docs/security/asa/asa72/configuration/guide/mswlicfg.html
Regards,
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Monitor memory utilization

Hi,
on 10g R2,
in documentation (Database 2 Day + Performance Tuning Guide) it is said :
To monitor memory utilization:
1.On the Performance Summary page, from the View list, select Memory Details.On my DBcontrol I do not have the View list to select Memory Details.
Would you confirme please that it is the case for DBcontrol ? And "View list, select Memory Details" is available only in Performance page in Enterprise Manager ?
Is in AWR report any part indicating host memory utilization ?
Thank you.

do you use Standard Ed? in such a case AWR/ADDM is unavailable.
If you use Ent.Ed. then see parameters:
timed_statistics TRUE
statistics_level TYPICAL (best)
also see the snapshot interval and retention period:
col snap_interval format a30
col retention format a30
select snap_interval, retention
from dba_hist_wr_control;

Hyper-V VMs memory utilization

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