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Parse /sys/class/drm/cardN/device/ stats #370

Merged
merged 2 commits into from
Jun 23, 2021
Merged

Parse /sys/class/drm/cardN/device/ stats #370

merged 2 commits into from
Jun 23, 2021

Commits on Jun 6, 2021

  1. Parse /sys/class/drm/cardN/device/ stats 

    This commits adds support for reading card stats exposed by drm.
Only `amdgpu` driver currently exposes these stats but it should be
easy to add more driver support if required.
FreeBSD uses the same driver through `kms-drm` but it does not expose
the attributes we are interested in through niether `sysctl` or `linsysfs`.

Signed-off-by: Siavash Safi <siavash.safi@gmail.com>
    @siavashs
    siavashs committed Jun 6, 2021
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  2. Add tests for ClassDrmCardStats & update fixtures 

    The fixtures are a snapshot from my Vega64 GPU, other cards might expose
more or less stats based on kernel documentation.
https://www.kernel.org/doc/html/latest/gpu/amdgpu.html

Signed-off-by: Siavash Safi <siavash.safi@gmail.com>
    @siavashs
    siavashs committed Jun 6, 2021
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