User Guide

Contents

graphics-rendering
Command Line Analysis

Use the
graphics-rendering
value to launch the GPU Rendering analysis (preview) and estimate your code performance based on the GPU usage per engine and GPU hardware metrics.
It focuses on the following usage models:
  • System-wide profiling on all virtual domains (Dom0, DomUs) running under the Xen* hypervisor to identify domains that take too many resources and introduce a bottleneck for the whole platform. Use the
    -target-system
    option to specify a remote machine connected to your host via SSH.
  • Profiling of OpenGL-ES applications running on Linux* systems to detect performance-critical API calls. For this mode, specify the application to analyze or a process to attach to, using the
    -target-process
    or
    -target-pid
    options.

Prerequisites

For successful analysis, make sure to configure your system as follows:

Syntax

vtune
[--target-system=ssh:
username
@
hostname
[:
port
]] --collect graphics-rendering [--knob <
knobName=knobValue
>] -- [
target
] [
target_options
]
Knobs:
gpu-sampling-interval
, .
For the most current information on available knobs (configuration options) for the GPU Rendering, enter:
vtune
-help collect graphics-rendering
Example
This example runs system-wide GPU Rendering analysis for a remote Xen target:
host>./
vtune
--target-system=ssh:user1@172.16.254.1 –-collect graphics-rendering --duration 0
This example profiles an OpenGL-ES app running the GPU Rendering analysis:
host>./
vtune
–-collect graphics-rendering --target-process process1

What's Next

When the data collection is complete, do one of the following to view the result:

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