INTEL VTUNE SAMPLING PDF

Sometimes updates to the operating system may cause these drivers to fail at build or loading. In those instances, users may need updated versions of the drivers before official updates of the product are available. The latest available drivers are available below. 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. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel.

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VTune Amplifier installer automatically uses the Sampling Driver Kit and the Power Driver Kit to build drivers for your kernel with the default installation options. But you may still enable a full-scale sampling data collection or Energy analysis by:. Building and managing the sampling driver. Building and managing the power driver for Energy analysis.

You may need kernel header sources and other additional software to build and load the kernel drivers on Linux. A Linux kernel update can lead to incompatibility with VTune Amplifier drivers set up on the system for event-based sampling EBS analysis and power analysis.

If the system has installed VTune Amplifier boot scripts to load the drivers into the kernel each time the system is rebooted, the drivers will be automatically re-built by the boot scripts at system boot time. Kernel development sources required for driver rebuild should correspond to the Linux kernel update. If you loaded the drivers but do not use them and no collection is happening, there is no execution time overhead of having the drivers loaded. The memory overhead is also minimal.

You can let the drivers be loaded at boot time for example, via the install-boot-script , which is used by default and not worry about it.

Unless data is being collected by the VTune Amplifier, there will be no latency impact on system performance. During product installation on Linux OS, you may control the drivers installation options via the Change advanced options menu item.

VTune Amplifier provides the following options:. Choose the driver installation option. You may change the option to driver kit files only if you want to build the driver manually after installation. Set the driver access group ownership to determine which set of users can perform the collection on the system. By default, the group is vtune. Access to this group is not restricted. To restrict access, see the Driver permissions option below. You may set your own group during installation in the Advanced options or change it manually after installation by executing:.

Change permissions for the driver. The default permissions allow any user to access the driver. Using this access the user can profile the system, an application, or attach to a process. Use a boot script that loads the driver into the kernel each time the system is rebooted.

The boot script can be disabled later by executing:. Install the hardware event-based collector driver with the per-user filtering on.

When the filtering is on, the collector gathers data only for the processes spawned by the user who started the collection.

When it is off default , samples from all processes on the system are collected. Consider using the filtering to isolate the collection from other users on a cluster for security reasons. A regular user cannot change the mode after the product is installed. This option ensures that during the collection the VTune Amplifier collects data only for the current user. Once enabled by the administrator during the installation, this mode cannot be turned off by a regular user, which is intentional to preclude individual users from observing the performance data over the whole node including activities of other users.

After installation, you can use the respective -vars. Specify the location of the kernel header files on this system, the path and name of the C compiler to use for building the driver, the path and name of the make command to use for building the driver. But you may still enable a full-scale sampling data collection or Energy analysis by: Building and managing the sampling driver Building and managing the power driver for Energy analysis Note You may need kernel header sources and other additional software to build and load the kernel drivers on Linux.

Driver access group [ vtune default ] Set the driver access group ownership to determine which set of users can perform the collection on the system. Driver permissions [ default ] Change permissions for the driver. Load driver [ yes default ] Load the driver into the kernel. Install boot script [ yes default ] Use a boot script that loads the driver into the kernel each time the system is rebooted.

Driver access group [ vtune default ]. Driver permissions [ default ]. Load driver [ yes default ]. Load the driver into the kernel. Install boot script [ yes default ]. Driver build options ….

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Intel® VTune™ Amplifier Sampling Driver Downloads

VTune Profiler formerly VTune Amplifier is a commercial application for software performance analysis of 32 and bit x86 based machines. It has both a graphical user interface GUI and command line and comes in versions for Linux or Microsoft Windows operating systems. It is available as part of Intel Parallel Studio or as a stand-alone product. VTune Profiler assists in various kinds of code profiling including stack sampling, thread profiling and hardware event sampling.

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The browser version you are using is not recommended for this site. Please consider upgrading to the latest version of your browser by clicking one of the following links. 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. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel.

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