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Precise Events
Precise events are events for which the exact instruction addresses that caused the event are available. You can configure these events to collect extended information, the values of all the registers...
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Access Contention Analysis
Access Contention analysis type uses event-based sampling collection and is targeted for the Intel® microarchitecture code name Sandy Bridge.This analysis type uses events that help identify shared...
View ArticleAdvanced Hotspots Analysis
Advanced Hotspots analysis is a fast and easy way to identify performance-critical code sections (hotspots). The periodic instruction pointer sampling performed by Intel® VTune™ Amplifier identifies...
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Analyzing MPI Applications
Parallel High Performance Computing (HPC) applications often rely on multi-node architectures of modern clusters. Performance tuning of such applications must involve analysis of cross-node application...
View ArticleVTune Amplifier in Intel® Studios
Intel® VTune™ Amplifier is delivered as part of the Intel Parallel Studio XE, Intel Cluster Studio XE, and Intel System Studio.For information on Studio components, their interaction with the VTune...
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Interpreting Data on Concurrency and CPU Usage
Analyze the concurrency of your application and how effectively it is utilizing CPU cores using the following viewpoints:Hotspots by CPU Usage viewpoint (default) to identify program units that took...
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Synchronization between the Bottom-up Pane and Call Stack Pane
Each stack in the Bottom-up pane corresponds to a call stack provided in the Call Stack pane. But the number of tree branches does not necessarily equal the number of stacks in the Call Stack pane....
View ArticleAbout Adding External Data to the Intel® VTune™ Amplifier
Intel® VTune™ Amplifier provides an option to correlate interval or discrete data, provided by an external collector, with the regular data provided by the analyzer. For example, you can see how the...
View ArticleCreating an Analysis Type with User-defined Event-based Sampling Metrics
Use the Metrics definition files provided by the VTune Amplifier to create your own event-based metrics and define analyses describing which metrics should be viewed together and how they should be...
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Specifying CPUs to Analyze
Intel® VTune™ Amplifier supports sampling on up to 4096 processors (CPUs). To focus on specific processors, set processor masking and select processors to monitor for the hardware event-based sampling...
View ArticleInstalling Drivers
Parent topic: Before You BeginAbout Installing DriversBuilding and Managing the Sampling DriverBuilding and Managing Power Analysis DriverBuilding Drivers for Performance Analysis of an Android*...
View ArticleCPU Frequency Analysis
NotePower analysis is available only with the Intel® VTune™ Amplifier for Systems, part of Intel System Studio. For Linux* platforms based on Intel Xeon® processors, use Power analysis types provided...
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Memory Access Analysis
Memory Access analysis type uses event-based sampling collection and is targeted for Intel® microarchitectures code name Nehalem/Westmere.This analysis type uses events that provide a breakdown of...
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About Performance Analysis with VTune Amplifier
Intel® VTune™ Amplifier introduces the following categories of performance analysis:Algorithm AnalysisMicroarchitecture and Platform AnalysisPower Analysis (for VTune Amplifier for Systems only)Each...
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Analyzing Power and Performance with Hardware Event-based Stack Sampling
Intel® VTune™ Amplifier provides a mechanism to analyze code parallelism and power consumption using the hardware event-based sampling with the stack collection enabled. As soon as you created a VTune...
View ArticleIntroduction
Parent topic: Intel® VTune™ AmplifierIntroducing the Intel VTune AmplifierWhat's NewVTune Amplifier in Intel® StudiosTutorials and SamplesNotational ConventionsRelated InformationLingua Inglese
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Interpreting Hardware Issues
When the event-based sampling analysis is complete, start exploring the collected data with the Hardware Issues viewpoint. This viewpoint displays data per hardware-related performance metric. Each...
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Choosing the Color Scheme
Intel® VTune™ Amplifier provides two color schemes for the bar chart views of the results. The default color scheme uses colors to denote the utilization of resources in your application. The...
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Stopping Analysis
When you run the analysis, the command toolbar in the Analysis Type window is updated with a set of buttons managing the data collection.To stop the analysis, click the Stop button or press...
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Configuring Sample After Value
Intel® VTune™ Amplifier sets the Sample After value for hardware events automatically. For predefined hardware-level analysis types, the Sample After value is displayed in the Analysis Type window. You...
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