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Tim Mangan Releases Free Perceived Performance Toolkit For Citrix Servers |
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Thursday, 07 July 2005
by Michel Roth
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Seen on BrianMadden.com: Tim Mangan has been writing about “perceived performance” of Citrix servers for almost two years. (Read his original paper about the perceived performance of Citrix servers, and a newer paper about the perceived performance of virtual machines.) Basically, his theory is that it doesn’t really matter what values the various performance monitor counters show. What matters is how uses perceive the performance of the server. This is typically measured in latency (or “delay” in performing some action), and it needs to incorporate server load, applications, network latency, etc.
Ultimately, a server with 100% CPU load and 100% memory load that has happy users is much better than a server with 20% CPU load and 30% memory load where users think the server is too “slow.”
Read on here.
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