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Linux: add GPU meter and process column #1288

Merged
merged 6 commits into from
Mar 27, 2024
Merged

Linux: add GPU meter and process column #1288

merged 6 commits into from
Mar 27, 2024

Commits on Jan 9, 2024

  1. Store time of the previous process scan 

    The difference of scans is useful for utilization calculations.

To avoid divisions by 0 on first scan set monotonicMs also on first
scan.
    @cgzones
    cgzones committed Jan 9, 2024
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  2. Introduce autoTitleRightAlign column flag 

    Instead of handling PERCENT_CPU as a special case for whether to align
the title of a dynamically sized column to the right or the left
introduce a new flag, which can be reused by other columns.
    @cgzones
    cgzones committed Jan 9, 2024
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  3. Introduce String_eq_nullable()

    @cgzones
    cgzones committed Jan 9, 2024
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  4. Short circuit zero time in Row_printTime() 

    Bail out early if the passed time is 0 and shadow the result.
    @cgzones
    cgzones committed Jan 9, 2024
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  5. Linux: add GPU meter and process column 

    Based on the DRM client usage stats[1] add statistics for GPU time spend
and percentage utilization.

[1]: https://www.kernel.org/doc/html/latest/gpu/drm-usage-stats.html
    @cgzones
    cgzones committed Jan 9, 2024
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  6. Linux: scan GPU based on previous activity 

    Instead of ignoring the standard file descriptors 0, 1 and 2 scan for
GPU usage of a process only if that process had activity last cycle or
its last scan was more than five seconds ago.
    @cgzones
    cgzones committed Jan 9, 2024
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