Sizing Windows 10 and Windows 7 Virtual Machines


After reviewing all of the scalability tests we conducted over the past few months, I thought it was time to revisit the recommendations for sizing Windows 10 virtual machines.  I also reached out to Nick Rintalan to see if this is in line with what is currently being recommended for production environments (if you disagree, blame him 🙂 ). A few things you will notice Windows 7 and Windows 10 recommendations are similar.  Microsoft’s resource allocation for both operating systems are similar.  The Windows 10 and Windows 10 scalability tests resulted in similar numbers. Density – Experience: For some of … Continue reading Sizing Windows 10 and Windows 7 Virtual Machines

Microsoft Office 2016 Impact on XenDesktop Scalability


A day doesn’t go by when I don’t open up at least one Microsoft Office application.  Even on weekends, when I’m not working, I usually open at least one application. It should be of little surprise that Microsoft Office is one of the most used set of applications in many RDS/VDI deployments. But what impact does Microsoft Office have on overall single server scalability? How does the impact change as we move users from Office 2010 to 2013 and onto 2016? As you can see, single server density decreases. Office 2010 gives us the best scalability. Office 2013 reduces single … Continue reading Microsoft Office 2016 Impact on XenDesktop Scalability

XenDesktop 7.7: Windows 7 vs Windows 10


Everyone loves a good battle The Simpsons vs Family Guy Kirk vs Picard Star Wars vs Star Trek Microsoft vs Apple And now, we have one more, which will be a big debate for 2016… Windows 7 vs Windows 10 Over the last couple of weeks, I’ve been sharing some of our single server scalability testing results for Windows 7 and Windows 10 across Microsoft Hyper-V and Citrix XenServer utilizing XenDesktop 7.7. Each test compared a different image management model, Citrix policy and operating system optimization configuration. What was more interesting, and worrisome, was when we started comparing the same … Continue reading XenDesktop 7.7: Windows 7 vs Windows 10

XenDesktop 7.7 and Windows 7


We recently completed a massive round of testing looking at many of the different deployment configurations we can do with a Windows 7 desktop in XenDesktop 7.7. We wanted to look at how different factors might impact single server scalability. PVS vs MCS PVS Disk Cache vs RAM Cache Citrix Policies: Very High Definition vs High Server Scalability vs Optimized for WAN Windows 7 optimizations Each test was conducted utilizing the same, knowledge worker workload.   As you see, each test builds upon the previous test while only modifying a single parameter. As I’ve gone through the initial results, some … Continue reading XenDesktop 7.7 and Windows 7

Hello, DNA


I love seeing crazy comparisons and statistics, especially if it has anything to do with science Deoxyribonucleic acid (DNA) If laid out end-to-end, all DNA within your body would go from the Earth to Pluto and back to the Earth (too bad Pluto is not a planet anymore.) Humans share 99% of their DNA with everyone else (makes the 7 degrees of separation game kind of pointless.) If you could type 60 words per minute, eight hours a day, it would take approximately 50 years to type the human genome (Well, I can type 61 words per minute). Humans have roughly … Continue reading Hello, DNA

Virtual Desktop Resources: Then and Now


Two years ago, I wrote a blog called “Lessons Learned with vCPU allocation“. This was still fairly early in the world of virtual desktops. But with numerous successful projects, we were able to start generating sizing estimates for virtual desktops. We talked about how many vCPUs we should allocate, how many users we expect to get per physical core, how much RAM we need and how many IOPS will we generate. I wanted to go back and see if some of the best practices I offered years ago still stand up to scrutiny. If not, I want to know why. … Continue reading Virtual Desktop Resources: Then and Now

Application compatibility with Windows 7


How many of you have migrated to Windows 7? If the company you work for has, I bet there are a host of applications that are not compatible with Windows 7 (although Win7 is much better at app compatibility than Vista). So what options do you have? . Let’s say your application worked fine with Windows XP, does that mean your users need XP and Windows 7 desktops? Unfortunately, I’ve seen too many people end up with multiple desktops at their desk. Not sure about you, but it seems like a waste to have two desktops for a simple issue … Continue reading Application compatibility with Windows 7