Intel® Advisor User Guide

ID 766448
Date 3/31/2023

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Document Table of Contents

CPU Roofline Accuracy Presets

For each perspective, Intel® Advisor has several levels of collection accuracy. Each accuracy level is a set of analyses and properties that control what data is collected and the level of collection details. The higher accuracy value you choose, the higher runtime overhead is added.

The following accuracy levels are available:

Comparison / Accuracy Level




5 - 10x

15 - 50x


Analyze how well your application uses memory and compute resources of a CPU and determine the main limiting factor (memory bandwidth or compute capacity)

Analyze how well your application uses CPU memory at different cache levels in more details


Survey + Characterization (FLOP)

Survey + Characterization (Trip Counts and FLOP with call stacks for all memory levels) + Memory Access Patterns


Cache-aware CPU Roofline for L1 cache

Memory-level CPU Roofline with call stacks (for L1, L2, L3, DRAM)

Memory Access Patterns

You can choose custom accuracy and set a custom perspective flow for your application. For more information, see Customize CPU / Memory Roofline Insights Perspective.

There is a variety of techniques available to minimize data collection, result size, and execution overhead. Check Minimize Analysis Overhead.