The goal of this tool is to be usable as a test for whether something
(suspend/resume, GPU reset, bugs, whatever) may have lost various
required hardware setup specified in the docs.
Reviewed-By: Eugeni Dodonov <eugeni.dodonov@intel.com>
This allows intel_gpu_top to run both in statistics-collecting mode
(collecting the per-ring statistics in gnuplot-friendly format) and
ncurses top-like mode at the same time.
It also allows to output the statistics directly to stdout, by using "-o
-", so the results can be parsed directly via a popen() parsing.
If you are using intel_gpu_top as previously (without any command-line
arguments), it should change nothing for you. If you were using its
logging facilities (e.g., the '-o file'), note that the logging will keep
running, but the detailed top-like interface will be on the screen at the
same time.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
- now also handles ascii dumps like i915_ringbuffer_data
- getoptified
- totally lazy binary detector
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Without this patch, intel_gpu_top will try to get access to the hardware
after running the profiling command in the background. In case such access
fails, the main process quits, but the background one will continue
running.
So let's move this test up, so it is done before we fork.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
This patch adds support for running intel_gpu_top to profile specific
commands. The required command will be carried out in separate process,
and main intel_gpu_top will leave when the child process will exit.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
This patch adds support for non-interactive mode, invoked by running with
'-o output' switch. In this case, no interactive output is being
performed, but the execution statistics are being saved into the output
file.
The output file is generated in both human and gnuplot-readable format.
Unlike interactive mode, where non-supported pipes and non-active
registers are skipped, the content of such pipes and registers is recorded
into the log file to simplify parsing and standardize the list of columns.
Also, unlike interactive mode, the registers are not sorted according to
the usage - this way, their variation over time can be analysed offline.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
the monitoring itself. This way, the first measure will already contain
the difference from the previous value instead of non-initialized value.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
This patch initializes the last_stats[] for registers prior to starting
the monitoring itself. This way, the first measure will already contain
the difference from the previous value instead of non-initialized value.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
This patch adds initial support for non-stdio output, to be used for
non-interactive monitoring.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
second
This patch adds support for getopt, and adds two default parameters to it:
-h to show usage notes; and -s to allow user to define number of samples
to acquire per second.
Manpage documentation is also adjusted accordingly.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
This allows intel_gpu_top to properly account for time spent inside system
calls. Effectively, with previous implementation, intel_gpu_top could
spent longer than 1s between consecutive measures. This attempts to
minimize the extra time spent while polling for data.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
This app is required for debug features which seem to (undocumented)
reset themselves if/when the GT goes to sleep.
It is also useful for those doing general debugging or profiling from
userspace when they do not wish to have the GT sleep.
v2: made forcewaked more daemon-like
Cc: Chris Wilson <chris@chris-wilson.co.uk>
The decode for A8 is incomplete and died with a segfault. First hide the
segfault, latter fix the pretty printing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Some versions of libpciaccess on Linux set rom_size to 0 for VGA
devices. While this behavior may change, intel_bios_dumper should
handle this situation to be compatible with current versions of the
library.
This fixes segmentation faults on affected systems.
Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter