Split Loads
Metric DescriptionThroughout the memory hierarchy, data moves at cache-line granularity (64 bytes per line). Although this is much larger than many common data types (such as integer, float, or...
View ArticleMETRIC.FORMULA []
The formula used to calculate this metric value in the grid, Summary window, and Timeline pane. The provided value should be a formula in the valid Python syntax, with the following restrictions:Only...
View ArticleSpin Time
Metric DescriptionSpin time is Wait Time during which the CPU is busy. This often occurs when a synchronization API causes the CPU to poll while the software thread is waiting. Some Spin Time may be...
View ArticleMETRIC.ISSUE_TEXT []
Te issue text of the metric provided as a Python string. An issue text appears as a tooltip in the VTune Amplifier when you mouseover a cell highlighted in pink in that metric's column or in the...
View ArticleSMC Machine Clear
Metric DescriptionCertain events require the entire pipeline to be cleared and restarted from just after the last retired instruction. This metric measures only self-modifying code (SMC) event. This...
View ArticleMETRIC.DESCRIPTION []
The description of a metric as a Python string. The metric description appears as a tooltip in the VTune Amplifier when you mouse over a header of the metric column in the grid or when you mouseover...
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Overhead and Spin Time
Overhead TimeOverhead time is the time the system takes to deliver a shared resource from a releasing owner to an acquiring owner. Ideally, the Overhead time should be close to zero because it means...
View ArticleWait Time
Metric DescriptionWait Time occurs when software threads are waiting due to APIs that block or cause synchronization. Wait Time is per-thread, therefore the total Wait Time can exceed the application...
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Workflow Location: Configure Analysis
Microsoft Visual Studio* IDE WorkflowStandalone VTune Amplifier WorkflowParent topic: AppendixLingua Inglese
View ArticleTask Time
Metric DescriptionTotal amount of time spent within a task.Parent topic: CPU MetricsSee AlsoReference for Performance MetricsSubmit feedback on this help topicSupplemental documentation specific to a...
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Workflow Location: Build Target
Microsoft Visual Studio* IDE WorkflowStandalone VTune Amplifier WorkflowParent topic: AppendixLingua Inglese
View ArticleSynchronization Context Switches
Synchronization Context Switches metric measures the number of times a thread was switched off a processor because of making an explicit call to thread synchronization API. For example, in case of...
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Workflow Location: Resolve Issue
Microsoft Visual Studio* IDE WorkflowStandalone VTune Amplifier WorkflowParent topic: AppendixLingua Inglese
View ArticleStore Bound
Metric DescriptionThis metric shows how often CPU was stalled on store operations. Consider False Sharing analysis as your next step.Parent topic: CPU MetricsSee AlsoReference for Performance...
View ArticleAppendix
Parent topic: Intel® VTune™ Amplifier 2013Workflow Location: Resolve IssueWorkflow Location: Build TargetWorkflow Location: Configure AnalysisWorkflow Location: Analyze SourceWorkflow Location:...
View ArticleSplit Stores
Metric DescriptionThis metric represents a rate of split store accesses. Consider aligning your data to the 64-byte cache line granularity.Possible IssuesA significant proportion of cycles is spent...
View ArticleANALYSIS.VALID_ARCHITECTURES
A Python list of architecture specifications, indicating which architectures the analysis is valid for.Parent topic: User-defined Event-based MetricsSee AlsoCreating an Analysis Type with User-defined...
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Workflow Location: Choose Target
Microsoft Visual Studio* IDE WorkflowStandalone VTune Amplifier WorkflowParent topic: AppendixLingua Inglese
View ArticleANALYSIS.METRIC_TREE
A metric tree specifying the metrics that should be collected and displayed with this analysis and how they should be displayed. This metric tree is a recursive structure consisting of a Python list of...
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Workflow Location: Compare with Previous Results
Microsoft Visual Studio* IDE WorkflowStandalone VTune Amplifier WorkflowParent topic: AppendixLingua Inglese
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