Messages in this thread | | | Date | Mon, 14 Aug 2023 09:37:54 -0700 | Subject | [PATCH v3 0/3] perf list: Remove duplicate PMUs | From | Ian Rogers <> |
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When there are multiple PMUs, differing by ordered suffixes, by default only display one. This avoids repeated listing of events, in particular when there are 10s of uncore PMUs. If "-v" is passed to "perf list" then still list all PMUs.
Listing fewer PMU/event combinations helps speed the all PMU event tests.
Before: ``` $ perf list ... uncore_imc_free_running_0/data_read/ [Kernel PMU event] uncore_imc_free_running_0/data_total/ [Kernel PMU event] uncore_imc_free_running_0/data_write/ [Kernel PMU event] uncore_imc_free_running_1/data_read/ [Kernel PMU event] uncore_imc_free_running_1/data_total/ [Kernel PMU event] uncore_imc_free_running_1/data_write/ [Kernel PMU event] ```
After: ``` $ perf list ... uncore_imc_free_running/data_read/ [Kernel PMU event] uncore_imc_free_running/data_total/ [Kernel PMU event] uncore_imc_free_running/data_write/ [Kernel PMU event] ... $ perf list -v ... uncore_imc_free_running_0/data_read/ [Kernel PMU event] uncore_imc_free_running_0/data_total/ [Kernel PMU event] uncore_imc_free_running_0/data_write/ [Kernel PMU event] uncore_imc_free_running_1/data_read/ [Kernel PMU event] uncore_imc_free_running_1/data_total/ [Kernel PMU event] uncore_imc_free_running_1/data_write/ [Kernel PMU event] ... ```
The PMUs are sorted by name then suffix as a part of this change.
v3: Add detail to patch 1 sorting commit message about the suffix and why sorting is necessary. v2: List all PMUs when "-v" is passed as suggested by John Garry <john.g.garry@oracle.com>.
Ian Rogers (3): perf pmus: Sort pmus by name then suffix perf pmus: Add scan that ignores duplicates, use for perf list perf pmus: Don't print duplicate PMU suffix in list by default
tools/perf/builtin-list.c | 8 +++ tools/perf/util/pmus.c | 120 +++++++++++++++++++++++++++++++-- tools/perf/util/print-events.h | 1 + 3 files changed, 122 insertions(+), 7 deletions(-)
-- 2.41.0.640.ga95def55d0-goog
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