[PATCH v3] linux-gen: cpu: optimize aarch64 odp_cpu_cycles() implementation #1879
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
odpbuild
changed the title
TuomasTaipale
approved these changes
Aug 21, 2023
MatiasElo
force-pushed
the
dev/arm64-cpu-cycles
branch
from
35f0f56
to
7394064
Compare
odpbuild
changed the title
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>
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
force-pushed
the
dev/arm64-cpu-cycles
branch
from
7394064
to
bf216ac
Compare
odpbuild
changed the title
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Implement odp_cpu_cycles() function using 'cntvct_el0' virtual counter
register on aarch64.