HOME SOFTWARE CONSULTANCY TRAINING REFERENCE PARTNERS SEARCH PERFORMANCE TIPS Latest Tips e-business ITIL Linux Management Modeling Oracle SQL UNIX Windows z/OS       MODELING   What are the merits of Analytic versus Simulation modeling to predict system performance? I've got two workloads which use the same device, one randomly the other serially. The disk service times will be very different, but I only get one average service time from the measurements. How can I represent this in a model? New.. Know where that data comes from before you rely on it too much! How can I deduce UNIX disk service times from other figures? Modeling - How do I model the consolidation of server workloads? Modeling - Why don’t the System and User measures of CPU usage give the same number? Surely they’re measuring the same thing? Correlation Analysis - I’ve heard of something called "correlation analysis". What’s it for and how does it help me? UNIX/NT CPU Upgrades - What Will I Get by Adding Another CPU? Modeling Server Consolidation I don’t have any workload or transaction data, just system data. Can I still build a capacity planning model? If I do some modeling, what's the best way to present the results? What level of detail should I model at?

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