Intel® VTune™ Profiler User Guide

User Guide

Contents

Memory Consumption Analysis

Use the Memory Consumption analysis for your Linux* native or Python* targets to explore memory consumption (RAM) over time and identify memory objects allocated and released during the analysis run.

How It Works

During Memory Consumption analysis, the
VTune
Profiler
 data collector intercepts memory allocation and deallocation events and captures a call sequence (stack) for each allocation event (for deallocation, only a function that released the memory is captured).
VTune
Profiler
 stores the calling instruction pointer (IP) along with a call sequence in data collection files, and then analyzes and displays this data in a result tab.

Configure and Run Analysis

To configure and run the Memory Consumption analysis:
Prerequisites
: Create a project.
  1. Click the (standalone GUI)/ (Visual Studio IDE)
    Configure Analysis
     button on the
    Intel® VTune™
    Profiler
     toolbar.
    The
    Configure Analysis
     window opens.
  2. From
    HOW
     pane, click the Browse button and select
    Memory Consumption
    .
    The Memory Consumption analysis is pre-configured to collect data at the memory objects (data structures) granularity, which is provided due to instrumentation of memory allocations/de-allocations and getting static/global variables from symbol information.
  3. Optionally, you may configure the
    Minimal dynamic memory object size to track
     option. This option helps reduce runtime overhead of the instrumentation. The default value is 32 bytes.
  4. Click the Start button to run the analysis.
    Generate the command line for this configuration using the Command Line button at the bottom.

View Data

By default, the analysis result opens in the Memory Consumption viewpoint. Identify peaks of the memory consumption on the Timeline pane and analyze allocation stacks for the hotspot functions. Double-click a hotspot function to switch to the Source view and analyze the source lines allocating a high amount of memory.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804