Hyper-V, Dynamic Memory, Memory Demand more than Maximum memory
Hi,
I have found that for some VMs Demand Memory more that Maximum Memory set.
Where can I found any documentation about this?
A VM can 'demand' more memory than is possible'
But it will never actually be given more then the maximum.
In the VM the application is asking for more RAM from the virtual memory manager of the OS in the VM (not to be confused with any memory management that the hypervisor is doing).
When the VM hits its Maximum setting it is no different than a physical machine hitting its physical RAM cap - the OS begins paging to give the application the additional RAM it is asking for.
It simply means that you have a greedy application. SQL and the Exchange mailbox role have a long history of being very greedy applications (SQL made many changes to work in concert with dynamic memory) - taking all of the RAM they could get.
In your case, you have a startup of 32GB a minimum of 24GB and a Maximum of 36GB. And the application in the VM would 'like' to have 54GB. If you look in your VM OS you will probably find that it is paging to disk.
What is your allocation setting? The default of 20% Higher?
Personally - I see little value in using dynamic memory with such a small window of difference between the startup, minimum, and maximum. It is as if you are trying to micro manage the feature, instead of allowing the feature to work as designed.
Dynamic memory is designed to balance RAM between all of the VMs on a particular hypervisor at the same time. And to allow use of all the RAM the machine has, if there is a workload that can use it. If the VM wants 64GB, why not give it that.
Dynamic memory will not starve other VMs to give this VM more RAM (unless you give this VM a higher priority). But it will take RAM away from a VM (if absolutely necessary) to allow another VM to meet its requirements.
Any VM is always guaranteed its startup, at boot time. And dynamic memory will not starve it below it minimum - and if the VM is not using RAM it will take RAM away down to the minimum. And a VM will never be given more than the maximum, even
if the VM wants more.
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.
Disclaimer: Attempting change is of your own free will.
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Hello Guruz,
Interesting, I installed one zone with 1Gb dedicated memory, But when I type top command I am getting o/p as below.
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How come free memory will be more than physical memory?
If that so, how can we get exact memory utilization on non-global zones.
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Please run the following command on the Global Zone and Non - Global Zone and upload the output.
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Thanks!
<?php require_once('Connections/SQLTest.php'); ?>
<?php
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function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
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case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
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$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<form id="form1" name="form1" method="POST" action="<?php echo $editFormAction; ?>">
<p>
<label for="products"></label>
Choose the product(s) you would like to add to your new discount bundle.</p>
<p>
<select name="products" size="1" multiple="MULTIPLE" id="products">
<option value=""></option>
<?php
do {
?>
<option value="<?php echo $row_Products['product_id']?>"><?php echo $row_Products['product_name']?></option>
<?php
} while ($row_Products = mysql_fetch_assoc($Products));
$rows = mysql_num_rows($Products);
if($rows > 0) {
mysql_data_seek($Products, 0);
$row_Products = mysql_fetch_assoc($Products);
?>
</select>
</p>
<p>
<input type="hidden" name="hiddenField" id="hiddenField" />
</p>
<p>Choose the subscriber group that you would like this discount to apply to.</p>
<p>
<select name="shoper_group">
<?php
do {
?>
<option value="<?php echo $row_shopper_group['shopper_group_id']?>"><?php echo $row_shopper_group['shopper_group_name']?></option>
<?php
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if($rows > 0) {
mysql_data_seek($shopper_group, 0);
$row_shopper_group = mysql_fetch_assoc($shopper_group);
?>
</select>
</p>
<p>Please enter the dollar amount that you would like to adjust.
<label for="dollar_amount"><br />
</label>
<input type="text" name="dollar_amount" id="dollar_amount" />
</p>
<p>
<input name="amount_off_total" type="hidden" id="amount_off_total" value="amount_off_total" />
</p>
<p>Enter any message you would like the shopper to view during shopping and checkout when this discount is applied.</p>
<p>
<label for="discount_message"></label>
<textarea name="discount_message" id="discount_message" cols="45" rows="5"></textarea>
</p>
<p>
<input type="hidden" name="MM_insert" value="form1" />
</p>
<p>
<input type="submit" name="submit" id="submit" value="Submit" />
</p>
</form>
<br />
</body>
</html>
<?php
mysql_free_result($Products);
mysql_free_result($shopper_group);
?>Thanks guys for you reply , [Cor Ligthert] I post this in Visual basic section, I appreciate your solution [dbasnett],
Thanks for that idea of attribute <Flags> [Blackwood] ,
Dictionary will not work in IF Statement as I want it , also ParamArray tbl() , thanks guys.
Here is the code
Module myModule
<Flags()>
Enum Table As Integer
Table1 = 2
Table2 = 4
Table3 = 8
Table4 = 16
Table5 = 32
End Enum
Public Sub MySub(ByVal Table As Table)
If (Table And Table.Table1) = Table.Table1 Then
MsgBox((Table And Table.Table1))
End If
If (Table And Table.Table2) = Table.Table2 Then
MsgBox((Table And Table.Table2))
End If
If (Table And Table.Table3) = Table.Table3 Then
MsgBox((Table And Table.Table3))
End If
If (Table And Table.Table4) = Table.Table4 Then
MsgBox((Table And Table.Table4))
End If
If (Table And Table.Table5) = Table.Table5 Then
MsgBox((Table And Table.Table5))
End If
End Sub
End Module
Class Myclass
Private sub CallTables()
MySub(Table.Table1 Or Table.Table2)
MySub(Table.Table2 Or Table.Table3 Or Table.Table4)
MySub(Table.Table1 Or Table.Table4 Or Table.Table5)
MySub(Table.Table1 Or Table.Table2 Or Table.Table4 Or Table.Table5)
MySub(Table.Table1 Or Table.Table2 Or Table.Table3 Or Table.Table4 Or Table.Table5)
end sub
end Class -
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Hi Gurus,
we have a lot size 'EX' with maximum lot size =480.
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Thank you.
Naveen.Hi
What is that material. If it fert and then yes system will create if you have mentioned max lot size.
Because the max lot size does not control prodcution, it only controls the procurement side
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