Optimizing memory usage across multiple similar VMs

Posted by zildjohn01 on Super User See other posts from Super User or by zildjohn01
Published on 2010-04-27T18:16:10Z Indexed on 2010/04/27 18:23 UTC
Read the original article Hit count: 273

Filed under:

virtual-machine

|

copy-on-write

|

memory

|

optimization

Let's say I have four VM's open, each running an identical version of Windows. Under my current setup, the guest OS will be loaded into memory four times. Much of that is wasted space.

Using any VM host on the market, is there any way to consolidate that memory usage?

© Super User or respective owner

Related posts about virtual-machine

"Virtual Machine Manager" and "Virtual Machine Server" setup manual

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Is there a manual available that covers the proper setup of a "Virtual Machine Server" with no GUI with an Ubuntu Workstation with a GUI and "Virtual Machine Manager" installed? Both are 12.04 version. I get the following error message: unable to connect to libvirt Verify that -The libvirt-bin package… >>> More
How do the Virtual machine network works ?

as seen on Super User - Search for 'Super User'
I wish to know If I am using 2 VM instance on the same setup and I wish to use heavy data flow between the VMs is there any possibility that I get the Timeout (let say I having one timer on the sending end which stops on getting the ack.) I vague question is How network works in VM . I hope I am… >>> More
Virtual Machine for running Red Hat on Windows Vista

as seen on Stack Overflow - Search for 'Stack Overflow'
It looks like there are a variety of virtual machine offerings available. What is the best one to use with Vista as the host operating system and Red Hat Linux as the guest? >>> More
Virtual Machines List from PowerShell vs PowerShell ISE and PowerGUI

as seen on Server Fault - Search for 'Server Fault'
I am confused to why I have different information based on where I try to retrieve it from. I have 3 Windows 2012 servers (G0, G1, and G2) running Hyper-V. The following situation is captured from one server which I use to run scripts and control the others. What I'm trying to do is to get a list… >>> More
Virtual Box - How to open a .VDI Virtual Machine

as seen on Oracle Blogs - Search for 'Oracle Blogs'
How to open a .VDI Virtual MachineSometimes someone share with us one Virtual machine with extension .VDI, after that we can wonder how and what with?Well the answer is... It is a VirtualBox - Virtual Machine. If you have not downloaded it you can do this easily just follow this post.http://listeningoracle… >>> More

Related posts about copy-on-write

How to check if the block is present in a sparse file (for simple copy-on-write)?

as seen on Stack Overflow - Search for 'Stack Overflow'
How to get sparse block size and check if data is present at the given offset in sparse file in reiserfs/ext3 in Linux? I want to use it to implement simple copy-on-write block device using FUSE. Or I should better keep a bitmap in a separate file? >>> More
Is there a way to create a copy-on-write copy of a directory?

as seen on Server Fault - Search for 'Server Fault'
I'm thinking of a situation where I would have something that creates a copy of a directory, tweaks a few files, and then does some processing on the result. This wold be done fairly often, maybe a few dozen times a day. (The exact use case is testing patch submissions; dupe the code, patch it, build/test/report/etc… >>> More
Infinispan equivalent to ehcache's copyOnRead and copyOnWrite

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am planning to implement a cache solution into an existing web app. Nothing complicated: basically a concurrent map that supports overflowing to disk and automatic eviction. Clustering the cache could be requirement in the future, but not now. I like ehcache's copyOnRead and copyOnWrite features… >>> More
java: copy-on-write data structure?

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there anything in Java that implements something like the following interface MSet<T> extends Iterable<T> { /** * return a new set which consists of this set plus a new element. * This set is not changed. */ MSet<T> add(T t); /** * return a new… >>> More
Optimizing memory usage across multiple similar VMs

as seen on Super User - Search for 'Super User'
Let's say I have four VM's open, each running an identical version of Windows. Under my current setup, the guest OS will be loaded into memory four times. Much of that is wasted space. Using any VM host on the market, is there any way to consolidate that memory usage? >>> More