Intel® VTune™ Amplifier uses kernel drivers to enable hardware event-based sampling and collect event-based sampling data from. During the hardware event-based sampling (EBS), also known as analysis in the sampling mode, the Intel® VTune™ Amplifier profiles your. To enable hardware event-based sampling analysis on your platform, the Intel® VTune™ Amplifier uses sampling drivers that require root.
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Driver access group [ vtune default ] Set the driver access group ownership to determine which set of users can perform the collection on the system. Project Navigator Context Menus: Share Tweet Share Send.
Summary – Hardware Events Window: You need root access to the target system. Share Tweet Share Send. Summary – Platform Power Analysis Window: Allow Multiple Runs or Multiplex This article relies too much on references to primary sources. Intel VTune Amplifier Pane: Driverless Perf system-wide sampling is performed by one monitoring process for the whole system.
Call Stack Pane Context Menus: Project Navigator Context Menus: When the filtering is on, the collector gathers data only for the processes spawned by the user who started the collection. Verify the sampling driver is installed. Share Tweet Share Send. Your system is based on kernel ijtel. Guessed Stack Frames Problem: For more complete information about compiler optimizations, see our Optimization Notice.
Build and Install the Sampling Drivers for Linux* Targets
Options – General Pane: Install boot script [ yes default ] Use a boot script that loads the driver into the kernel each time the system is rebooted. To install the driver that is built with the per-user event-based sampling collection on, use the -pu -per-user option as follows: Select sticky button color: Summary – Memory Samplingg Window: See Also knob sampling-interval amplxe-cl option.
Installing the Sampling Drivers Prerequisites for remote target systems: Copy the archive file from the installation directory to a writable directory or share on your system. Bottom-up – Memory Usage Window: For more complete information about compiler optimizations, see our Optimization Notice.
During product installation on a host Linux OS, you may control the drivers installation options via the Advanced Options. Options – Result Location Pane: Each group vthne of events that can be collected simultaneously.
Bandwidth – Platform Power Analysis Window: Summary – Locks and Waits Window: Views Sampilng Edit View history. The memory overhead is also minimal. Unexpected Paused Time Problem: This is usually used for the cross-build for a remote target system on the current host. VTune Amplifier uses the hardware event-based sampling collector to collect data for the following analysis types:.
Note If there is no collection in progress, there is no execution time overhead of having the driver loaded and very little overhead for memory usage.
Call Stack Pane Context Menus: The script builds the drivers with a specified cross-compiler for a specific kernel version. The sampling inel value of 10ms multiplies the SAV for all events by 10 making them overflow 10 times less frequently.
Summary – Hotspots Window: When it is off defaultsamples from all processes on the system are collected. Choose the driver installation option.
Select sticky button color: