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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For more complete information about compiler optimizations, see our Optimization Notice.
Guessed Stack Frames Problem: You need kernel header sources and other additional software to build and load the kernel drivers on Linux. Cannot Open Data Error Message: Summary – Microarchitecture Exploration Window: If building the drivers succeeds, install them manually with the insmod-sep script:.
You may change the default sampling interval as follows: Graphics – Hotspots Window: Results may vary depending on the nature of the analysis and the code to which it is applied. September Learn how and when to remove this template message.
Call Stack Pane Context Menus: Allow Multiple Runs or Multiplex Options – Result Location Pane: To install the drivers: By default, the driver access group is vtune. See Also knob sampling-interval amplxe-cl option.
Cannot Find File Window: You need root access to the target system. Cannot Open Data Error Message: Inaccurate Sum in the Grid Problem: Options – General Pane: See Also Sampoing Drivers.
Summary – Hardware Events Window: For example, your operating system limits on the maximum amount of files opened by a process as well as maximum memory mapped to a process address space still apply and may affect Perf-based profiling.
To install the driver that is built with the per-user event-based sampling collection on, intrl the -pu -per-user option inntel follows: This reduces the number of interrupts and the number of samples collected and written to disk.
Install the Sampling Drivers for Windows* Targets
Unexpected Paused Time Problem: Summary – Platform Power Analysis Window: Cannot Open Data Error Message: Driver build options …. Options – Result Location Pane: Summary – Locks and Waits Window: VTune Amplifier installer automatically uses the Sampling Driver Kit to build drivers for your kernel with the default installation options. Views Read Edit View history. Options – General Pane: Options – General Pane: Prerequisites for remote target systems: Verify the sampling driver is installed correctly.
For end-to-end tuning and configuration use cases, explore the VTune Amplifier Performance Analysis Cookbook that introduces such recipes as:.
Intel VTune Amplifier Pane: VTune Amplifier is installed to your default account.