PCoIP Packet Loss? Don’t Blame the Network!

Several months ago I was called into a new customer to diagnose some odd behavior in their VMware View environment. The organization was struggling with constant disconnects and generally poor performance on their View desktops. When users weren’t being randomly disconnected from their desktops, the users experienced lag when dragging windows between multiple monitors, ‘choppy’ graphics/video, and slow application launching. The problems occurred with local and remote users (both WAN and LAN could be involved).  The customer had done some troubleshooting, worked with VMware Support and the … [Read more...]

VMware View Performance Analysis of Logs (PAL) Utility

Introducing a new free tool for doing performance analysis on VMware View environments. Background I’ve been using the Performance Analysis of Logs (PAL) tool for years (since the first version released in 2007) to assist in analyzing, reporting, and visualizing performance logs in Windows environments.  The real power of PAL is the built-in threshold files that interpret Perfmon counters, providing an explanation of what the counter is, why it matters, and thresholds for warnings and critical to help quickly zero in on performance bottlenecks.  PAL includes templates for Windows, Hyper-V, … [Read more...]

The Skinny on ESXTOP

A reader named Mark contacted me today and asked if there was a way to reduce the size of the batch output from an ESXTOP run.  And he asks for good reason: Depending on the number of VM's on your host, the delay between ESXTOP samplings and the number of samples you collect, using the All Stats option (-a) can yield a massive file in a short period of time.  If written to a partition on your ESX Service Console you run the risk of filling the partition, and forget about actually being able to analyze the data in PERFMON or Excel.  For example, on an ESX host running ~15 VM's I produced 100MB … [Read more...]