3
votes
3answers
151 views

Can a Hyper-V machine be made slower and/or emulate a slow network connection?

I need to reproduce an issue with a client-server asynchronous communication (a bunch of JavaScript AJAX vs. an OData api), seemingly caused by some race condition in the calculations when the server ...
0
votes
0answers
157 views

Poor network performance when fileshare with CentOS on HyperV

I own Fujitsu Siemens server (TX100 I guess – I am not able to check this as I manage it remotely). I have got Windows 2008 Standard R2 sp1 installed. On this server I run Hyper-V and in it I have ...
0
votes
0answers
94 views

Identify Hyper-V VM GUID from Performance Counters

I am gathering CPU performance data for Hyper-V Virtual machines using perfmon or through WMI using the "Hyper-V Hypervisor Virtual Processor" counter. The output data contains My issue is that when ...
2
votes
2answers
510 views

Disk latency within a virtual machine

I've been looking at some performance issues on a clustered virtual machine in our organisation. Actually this problem seems to affect most of the virtual machines I have looked at. Both host and VM ...
1
vote
1answer
73 views

Hyper-V and CPU Usage

I'm renting VPS that I believe is using Hyper-V. Lately the processor performance of my VPS has been terrible, yet the CPU usage in the task manager doesn't show it struggling. Is the CPU usage in the ...
1
vote
1answer
386 views

How do I measure and compare disk performance of my Hyper-V Windows VM?

I'm not sure whether this sounds stupid or lazy, but I'm really not sure. I have a problem with the performance of a VM setup (2008R2-64bit Hyper-V running a 2003R2-32bit Windows server) and I'd like ...
3
votes
3answers
546 views

How to find virtualization performance bottlenecks?

We have recently started moving our C++ build server(s) from real machines into VMs. (MS Hyper-V) We have some performance issues that I've currently no idea how to address. We have: Test-Box - ...
5
votes
1answer
2k views

Why the performance decrease for an SSD when using Hyper-V?

I've just installed my new M4 256GB on a Windows Server 2008 R2 Hyper-V server. On the host system using Crystal Disk Mark I've got 212 Mb/s as 4k QD32 write performance, but when I create a VHD disk ...
1
vote
3answers
593 views

VMWare performance for a build server - awful or wrong tests?

We are looking into virtualizing our C++ Build server(s). The main reason being that our current toolchain that we use in addition to the build itself in Visual Studio only runs properly on Windows ...
3
votes
2answers
751 views

What could cause very slow (3 MB/s) disk access on a Ubuntu guest running under Hyper-V?

I have a Ubuntu 11.10 x64 guest running under Hyper-V on Windows Server 2008 R2 SP1, configured according to these directions, including installation of the hyper-v modules. Network speed is fine (500 ...
0
votes
1answer
2k views

Is there any performance data comparing Hyper-V and VirtualBox?

I'm planning to run a few (<10) Windows VM guests on my workstation (HP Z400, Xeon with 8G Ram). I got 2 options, 1. Hyper-V server (free) 2. Windows 7 + VirtualBox Are there any benchmark results ...
1
vote
2answers
357 views

Inducing artificial network latency in Hyper-V

I want to do some testing on how will system performance degrade with various changes in network throughput and latency. I am using Hyper-V for virtualization. Is there a way I can artificially limit ...
3
votes
1answer
461 views

Hyper-V limit disk usage of a VM

I'm using Hyper-V on Windows Server 2008 R2. I have one virtual machine that writes constantly to its vhd, using between 60% and 100% of the maximum disk I/O according to Resource Monitor. This ...
1
vote
3answers
614 views

Hyper-V not scaling processor access for Windows Server 2000 VM

I have a Dell R710 rack hosting several VM's: Windows Server 2008 R2 w/ Hyper-V dual Xeon 5520's @ 2.26 GHz 32GB mem teamed nic (4 gigabit NICs) all VM's are on their own set of mirrored SAS disks ...
1
vote
2answers
1k views

ESXi vs Hyper-V performance with multiple VM's

We are building a server to run our web site, where we will have following apps running 1. ASP.NET Web Application 2. ASP.NET WCF middletier 3. SQL Server 2008 4. Lucene + Solr + Tomcat 5. MongoDB 6. ...
2
votes
1answer
607 views

Microsoft Hyper-V Server CPU Scheduling and NUMA Memory Architectures

I suppose this question could apply to any virtualization technology, but I am trying to understand some of the details specific to Microsoft Hyper-V Server and how virtual CPU resources are scheduled ...
3
votes
2answers
737 views

Enabling Jumbo Packet support on Hyper-V internal network NIC

I have a Hyper-V setup where guest OS'es accesses the host/parent OS via an Internal Network. I've noticed that "Microsoft Virtual Machine Bus Network Adapter" has support for Jumbo Packets and ...
2
votes
1answer
263 views

Hyper-V R2 Performance Counters

I've been playing around with the WMI performance counters for Hyper-V. Of interest to me are the Virtual NIC bytes/sec input and output counters. I notice that the results are very "spikey". Over ...
0
votes
1answer
83 views

Cannot see physical/logical cores of newly added second quad-core when in Hyper-V manger

We have a DL380 G6 that was running with a single quad xeon. Since hyper-v is going well, we wanted to add more VM's. To keep things from bogging down, we added a second quad xeon to the box, and ...
1
vote
3answers
3k views

Recommendations on VM memory allocation General/Hyper-V

I've got a basic question on VM setup. I'm using Hyper-V, but I think the question is pretty generic. This is for a home office, I want to get reasonably good performance on the VMs without a lot of ...
1
vote
3answers
611 views

Server Performance Issue - Server 2008, SQL 2008 and Hyper-V [screenshots]

Im getting nasty performance on my server. It happens radmonly while accessing a website, but more often, right on the first time I load it. The server/webapp are still in dev, so I'm the only one ...
5
votes
5answers
5k views

Hyper-V Requirements, disk partitioning

My rule of thumb for a physical server was fast random access disk (VelociRaptor/SSD) for OS, and large disks for data (e.g. WD Caviar). How does that look for a Hyper-V that should run two virtual ...
1
vote
4answers
741 views

Does adding Hyper-V role affect host server performance when no guests are running?

I ask because in the architecture diagram on wikipedia, it indicates the "host" OS (root partition) is on a par with the "guest" (child partition), with Hyper-V components below all of them. ...