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[PATCH v3] linux-gen: cpu: optimize aarch64 odp_cpu_cycles() implementation #1879

Merged
merged 2 commits into from
Aug 23, 2023
Merged

[PATCH v3] linux-gen: cpu: optimize aarch64 odp_cpu_cycles() implementation #1879

merged 2 commits into from
Aug 23, 2023

Commits on Aug 23, 2023

  1. test: bench_misc: add new tests 

    Add new tests for CPU API functions odp_cpu_hz_id(), odp_cpu_hz_max_id(),
and odp_cpu_cycles_resolution().

Signed-off-by: Matias Elo <matias.elo@nokia.com>
Reviewed-by: Tuomas Taipale <tuomas.taipale@nokia.com>
    @MatiasElo
    MatiasElo committed Aug 23, 2023
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  2. linux-gen: cpu: optimize aarch64 odp_cpu_cycles() implementation 

    Implement odp_cpu_cycles() function using 'cntvct_el0' virtual counter
register on aarch64. With a 1 GHz time counter the ODP CPU cycle count
wraps every 78 hours.

Signed-off-by: Matias Elo <matias.elo@nokia.com>
Reviewed-by: Tuomas Taipale <tuomas.taipale@nokia.com>
    @MatiasElo
    MatiasElo committed Aug 23, 2023
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