Friday May 06, 2016

Friday Spotlight: New whitepaper "Optimizing Oracle VM Server for x86 Performance"

We are very pleased to announce a new whitepaper "Optimizing Oracle VM Server for x86  Performance" which describes how to measure and optimize performance in Oracle VM environments. It has detailed information on CPU, memory, and I/O performance, guidance on how to measure and evaluate performance, and news on performance features recently added to Oracle VM.

This material accompanies the May 5 webcast Performance Optimizations for Cloud Infrastructure as a Service (IaaS), which emphasizes cloud and scalable enterprise environments.

Watch this page for new announcements in Oracle VM performance as we continue to enhance performance.



Friday Apr 08, 2016

Friday Spotlight - Oracle VM 3.4 Dom0 Enhancements

This is another blog in the series to give the Oracle VM community some additional information on the 3.4 release that we announced on March 24. This week, we are going to share a little more information on the Dom0 kernel enhancements that were delivered with this updated version of Oracle VM..

Modern Dom0 kernel

With Oracle VM 3.4 we updated the Dom0 kernel to Oracle Unbreakable Enterprise Kernel (UEK) Release 4, based on the 4.1 mainline kernel. This update brings performance improvements; and rapid driver availability and streamlined partner certifications with Oracle Linux and Oracle VM. The latest set of driver updates offered with this new kernel can be found in the Release Note for UEK Release 4.

Dom0 kernel updates on live systems

Ksplice updates for the Dom0 kernel used on Oracle VM 3.3 (UEK3) and Oracle VM 3.4 (UEK4) are now available. All Oracle VM customers with Premier Support for their x86 Servers will be able to access the Ksplice channel on ULN to take advantage of this Oracle technology to add important kernel updates and security patches without needing to live migrate VMs or reboot your Oracle VM Server.

The process to install the Ksplice Uptrack client and perform the live kernel updates is similar to the process for Oracle Linux since this is used for the Dom0 user space in Oracle VM. Please refer to the KM note on My Oracle Support for all the information you need to use Ksplice with your Oracle VM deployment. The document “Oracle VM: Using Ksplice Uptrack” can be found with Doc ID 2115501.1.

Friday Apr 01, 2016

Friday Spotlight: Oracle VM 3.4 Performance Gains

This is the first in a series of blogs to give the Oracle VM community some additional information on the 3.4 release that we announced last week. To start, we are going to share a little more information on the performance gains and capacity increases that were delivered with this updated version of Oracle VM.

Oracle VM Manager:

A number of infrastructure enhancements have been delivered to increase the performance and responsiveness of the Oracle VM Manager. Test results have shown substantial time improvements for the tasks required to provision and manage your virtualization deployment:

  • 85% improvement in login times to the user interface
  • 62% quicker navigation between tabs
  • 66% faster response to actions like expanding the Server Pools folder

The net result is quicker response times when you perform jobs with the Manager which results in more time to focus on other IT tasks in your data center. Early feedback from an early adopter of Oracle VM 3.4 claims “It’s so zippy!”

Oracle VM Server:

With the introduction of an updated version of the Xen hypervisor and additional enhancements made to the Oracle VM Server code, the 3.4 release offers higher levels of scalability and performance:

  • Capacity increases:

    • CPUs per host Server increased to 384

    • vCPUs per VM increased to 256

    • VM vDisk size increased to 10TB (NFS) and 64TB (OCFS2)

    • VMs per host Server increased to 300

  • Faster live migrations – internal testing shows a 4x improvement in a typical migration time.

Oracle VM Agent for SPARC:

Improvements made to the Oracle VM Agent for SPARC have resulted in a 4x decrease in discovery time for a T5-8 in a customer deployment.

Oracle VM is engineered for the Open Cloud Infrastructure to increase datacenter flexibility, meet your price/performance needs, and make applications easier to deploy, manage, and support.

For more Information - Oracle VM 3.4 documentation is available on the Oracle Technology Network (OTN)

If you have any questions, feel free to post them on this blog entry.

Have a great weekend.

Friday Dec 11, 2015

Friday Spotlight: Oracle VM Server Performance and Tuning Blog

This Friday spotlight announces new blog articles on Oracle VM performance. This series of blogs, started in September, discusses how to evaluate and optimize Oracle VM performance. The articles that have already been published are:

  1. Oracle VM Performance and Tuning - Part 1 - introduced the series and gave a perspective on virtual machine performance.
  2. Oracle VM Performance and Tuning - Part 2 - discussed performance measurement and evaluation, and reviewed Oracle VM CPU, memory, and I/O architecture for both x86 and SPARC.
  3. Oracle VM Performance and Tuning - Part 3 - discussed performance goals, use cases, and policies for virtual machines and cloud environments.
  4. Oracle VM Performance and Tuning - Part 4 - provided an in-depth view of CPU and memory optimization for Oracle VM Server for x86, with details on how to optimize NUMA latency, CPU sizing and over-subscription, and hyper-threading.
  5. Oracle VM Performance and Tuning - Part 5 - discussed the different Oracle VM Server for x86 domain types and how to choose between them for performance and flexibility, and how to leverage huge pages and Oracle VM's CPU scheduler controls.
  6. Oracle VM Performance and Tuning - Part 6 - (new) discusses tuning network and disk I/O performance, which is critical to most workloads.

Upcoming articles will discuss tuning for other aspects of Oracle VM performance, followed by Oracle VM Server for SPARC performance topics.

In summary, while Oracle VM is designed to provide excellent performance "out of the box" performance can be enhanced by selecting the right implementation choices and using best practices.

Friday Sep 04, 2015

Friday Spotlight: Oracle VM Server Performance and Tuning Blog

This Friday spotlight announces a new series of blog articles on Oracle VM performance, starting with Oracle VM Performance and Tuning - Part 1.

Oracle VM is designed to provide excellent performance "out of the box" through its architecture and default configuration. Still, there are opportunities to enhance performance for demanding environments by selecting the right implementation choices and using best practices.

The articles will discuss how to measure and evaluate performance, provide tips for performance on Oracle VM Server for x86 and Oracle VM Server for SPARC, and relate experiences and lessons learned.

The first article provides a broad overview of performance in the virtual machine world, with specific examples relating to Oracle VM. Further articles will drill into how to provide optimal performance. Stay tuned!

Friday May 23, 2014

Friday Spotlight: Oracle VM Server for SPARC Virtual Disk Performance Improvement

A new Solaris update dramatically improves performance for virtual disks on Oracle VM Server for SPARC, providing near-native I/O performance. With this change, virtual I/O is suitable for the most demanding I/O intensive applications under Oracle VM Server for SPARC. Read this article to see more details.

Friday Jun 07, 2013

Friday Tips #31

Happy Friday, everyone!

Our tip this week answers a question that comes up often.

Question:
When deploying Oracle Virtual Desktop Infrastructure, how many users can a single server support?

Answer from information in the Oracle's Single Server Solution for VDI white paper:
As part of a single server solution (meaning, the hypervisor, storage, and management pieces are all on one machine and no other systems are necessary), Oracle tested two different configurations and came up with a guideline for how many users these systems can support. Please remember, this is just a guideline and not a guarantee or assurance of performance.

Configuration #1 (this is called the "base configuration" in the paper):

  • Sun Server X3-2L based on Intel Xeon E5 2660 processors
  • 128 GB 1600 MHz RAM (expandable to 512 GB)
  • 16 x 600G SAS-2 10K RPM disks 
  • Based on a customized “Large” configuration on the Oracle store 
  • Targeted at 90-95 users per system

Configuration #2 (this is called the "performance configuration" in the paper):

  • Sun Server X3-2L based on Intel Xeon E5 2690 processors 
  • 256 GB 1600 MHz RAM (expandable to 512 GB) 
  • 26 x 600G SAS-2 10K RPM disks 
  • Offered as “Large” configuration on the Oracle store 
  • Targeted at 180-190 users per system

If you'd like to get some more detail on this, head on over to the Oracle's Single Server Solution for VDI white paper for a lot more info.

We'll see you next week!

-Chris 

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