Intel® Graphics Performance Analyzers User Guide

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ID 767266
Date 3/15/2023
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Document Table of Contents
Document Table of Contents x
Intel® Graphics Performance Analyzers User Guide
Intel® Graphics Performance Analyzers User Guide x
Introduction to Intel® Graphics Performance Analyzers Get Help Game Optimization Methodology Install and Launch Intel® GPA Enable System-wide Time-based GPU Metrics and Enable Query-based Metrics for OpenGL* in Graphics Frame Analyzer for Ubuntu* Launch Application for Analysis Configure Analysis Settings Quick Start with Profiling Unreal Engine* Games Analyze Desktop Graphics Applications Instrumentation and Tracing Technology API Support Intel® GPA Reference Notices and Disclaimers
Launch Application for Analysis x
Start a Desktop Application with Graphics Monitor Start a Windows* Mixed Reality Application Connect to a Running Application (Windows* only) Analyze Applications in the Network Mode
Configure Analysis Settings x
Configure a Metric Set Customize Keyboard Shortcuts Set Up a Trigger Set Up Tracing Options Set Up Stream Options Set Frame Delimiters
Analyze Desktop Graphics Applications x
Manage Analysis with Graphics Monitor Monitor Real-Time Performance with System Analyzer Identify Issues in Graphics Application Execution with Trace Analyzer Analyze GPU-bound Applications with Graphics Frame Analyzer Optimize Specific Domains
Monitor Real-Time Performance with System Analyzer x
Pause and Resume a Running Application Export Metrics Data with System Analyzer
Analyze GPU-bound Applications with Graphics Frame Analyzer x
Run Render State Experiments with Frame Analyzer Use Advanced Profiling Mode Graphics Frame Analyzer Plugins
Graphics Frame Analyzer Plugins x
Create a Custom Plugin for Graphics Frame Analyzer
Optimize Specific Domains x
Optimize Shaders Analyze Textures Minimize Overdraw Optimize Graphic API States Identify Graphics Elements with Complex Geometry Visualize Color Distribution
Instrumentation and Tracing Technology API Support x
Compile and Link with ITT API Instrument Your Application Minimize ITT API Overhead Clock Domain API Counter API Usage Example Domain API Marker API Metadata API Relation API String Handle API Thread Naming API Task API
Intel® GPA Reference x
Performance Metrics Reference User Interface Reference
Performance Metrics Reference x
CPU Metrics Device I/O Metrics GPU Metrics Graphics API Metrics Memory Metrics
User Interface Reference x
Graphics Monitor UI Reference Heads-Up Display (HUD) UI Reference System Analyzer UI Reference Graphics Frame Analyzer UI Reference Graphics Trace Analyzer UI Reference
Graphics Monitor UI Reference x
Graphics Monitor Context Menu Graphics Monitor Configuration Window Graphics Monitor Control Panel Graphics Monitor Window: Desktop Applications Tab Graphics Monitor Window: Universal Windows Applications Tab (Windows* only) Graphics Monitor Window: Options Dialog Box
Graphics Frame Analyzer UI Reference x
Graphics Frame Analyzer Window: Open Frame Capture Graphics Frame Analyzer Window: Multiframe View Graphics Frame Analyzer Window: Profiling View Graphics Frame Analyzer Window: Dependency Viewer
Graphics Frame Analyzer Window: Profiling View x
Main Toolbar Visualization Pane API Log Pane Resources Pane Metrics Pane Experiments Pane
Graphics Trace Analyzer UI Reference x
Graphics Trace Analyzer Window: Open Trace Capture Graphics Trace Analyzer Window: Platform View
Intel® Graphics Performance Analyzers User Guide

Counter API

Counter is a user-defined characteristic or metric of hardware or software behavior that can be used to collect information about and correlate with execution breakdown, such as tasks, events, and markers. For example, it is useful for system on a chip (SoC) development when different counters may represent different parts of the SoC and count some hardware characteristics.

To define and create a counter object, use the following primitives:

__itt_counter ITTAPI __itt_counter_create_typedA __itt_counter_create_typedA(const char *name, const char *domain, __itt_metadata_type type)

__itt_counter ITTAPI __itt_counter_create_typedW __itt_counter_create_typedW(const wchar_t *name, const wchar_t *domain, __itt_metadata_type type)

Parameters of the primitives:

[in]

domain

Counter domain

[in]

name

Counter name

[in]

type

Counter type

To directly set the counter value, use the following primitive:

__itt_counter_set_value(__itt_counter id, void *value_ptr);

Parameters of the primitive:

[in]

id

Counter ID

[in]

value_ptr

Counter value

Usage Example

The following example creates a counter that measures temperature and memory usage metrics: 

#include "ittnotify.h"

__itt_counter temperatureCounter = __itt_counter_create("Temperature", "Domain");
__itt_counter memoryUsageCounter = __itt_counter_create("Memory Usage", "Domain");
unsigned __int64 temperature;

while (...)
{
    ...
    temperature = getTemperature();
    __itt_counter_set_value(temperatureCounter, &temperature);

    __itt_counter_inc_delta(memoryUsageCounter, getAllocatedMemSize());
    __itt_counter_dec_delta(memoryUsageCounter, getDeallocatedMemSize());
    ...
}

__itt_counter_destroy(temperatureCounter);
__itt_counter_destroy(memoryUsageCounter);
Parent topic: Instrumentation and Tracing Technology API Support
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