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INTEL_GPU_TOP(1)	     General Commands Manual		INTEL_GPU_TOP(1)

NAME
     intel_gpu_top - Display a top-like summary of Intel GPU usage

SYNOPSIS
     intel_gpu_top [OPTIONS]

DESCRIPTION
     intel_gpu_top is a tool to display usage information on Intel GPU's.

     The tool gathers data using perf performance counters (PMU) exposed by i915
     and  other  platform drivers like RAPL (power) and Uncore IMC (memory band-
     width).

OPTIONS
     -h     Show help text.

     -J     Output JSON formatted data.

     -l     List plain text data.

     -o <filepath|->
	    Output to the specified file instead of standard  output.	'-'  can
	    also be specified to explicitly select standard output.

     -s <ms>
	    Refresh period in milliseconds.

     -L     List available GPUs on the platform.

     -d     Select a specific GPU using supported filter.

RUNTIME CONTROL
     Supported keys:
	'q'    Exit from the tool.  'h'    Show interactive help.  '1'	  Toggle
	between aggregated engine class and physical engine mode.  'n'	  Toggle
	display  of numeric client busyness overlay.  's'    Toggle between sort
	modes (runtime, total runtime, pid, client id).  'i'	 Toggle  display
	of clients which used no GPU time.  'H'    Toggle between per PID aggre-
	gation and individual clients.

DEVICE SELECTION
     User  can	select specific GPU for performance monitoring on platform where
     multiple GPUs are available.  A GPU can be selected by sysfs path, drm node
     or using various PCI sub filters.

     Filter types:

	---
	filter	 syntax
	---
	sys	 sys:/sys/devices/pci0000:00/0000:00:02.0
		 find device by its sysfs path

	drm	 drm:/dev/dri/* path
		 find drm device by /dev/dri/* node

	pci	 pci:[vendor=%04x/name][,device=%04x][,card=%d]
		 vendor is hex number or vendor name

JSON OUTPUT
     To parse the JSON as output by the tool the consumer should  wrap	its  en-
     tirety  into square brackets ([ ]). This will make each sample point a JSON
     array element and will avoid "Multiple root elements" JSON  validation  er-
     ror.

LIMITATIONS
     * Not  all metrics are supported on all platforms. Where a metric is unsup-
       ported it's value will be replaced by a dashed line.

     * Non-root access to perf counters is controlled by the perf_event_paranoid
       sysctl.

REPORTING BUGS
     Report bugs to  <https://bugs.freedesktop.org> .

AUTHOR
     IGT Developers <igt-dev@lists.freedesktop.org>

COPYRIGHT
     2009,2011,2012,2016,2018,2019,2020 Intel Corporation

igt-gpu-tools 1.26		   2020-03-18			INTEL_GPU_TOP(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=intel_gpu_top&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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