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Arm backend: Minimal example of pruning #15851

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8119d6d
Arm backend: Minimal example of pruning
gggekov Oct 20, 2025
f6037a4
Merge branch 'main' into pruning_example_ethos_U
zingo Nov 20, 2025
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11 changes: 7 additions & 4 deletions examples/arm/executor_runner/arm_perf_monitor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ namespace {
#if defined(ETHOSU55) || defined(ETHOSU65)
const uint32_t ethosu_pmuCountersUsed = 4;
#elif defined(ETHOSU85)
const uint32_t ethosu_pmuCountersUsed = 5;
const uint32_t ethosu_pmuCountersUsed = 7;
#else
#error No NPU target defined
#endif
Expand Down Expand Up @@ -65,11 +65,14 @@ void ethosu_inference_begin(struct ethosu_driver* drv, void*) {
ETHOSU_PMU_Set_EVTYPER(drv, 2, ETHOSU_PMU_EXT_RD_DATA_BEAT_RECEIVED);
ETHOSU_PMU_Set_EVTYPER(drv, 3, ETHOSU_PMU_EXT_WR_DATA_BEAT_WRITTEN);
ETHOSU_PMU_Set_EVTYPER(drv, 4, ETHOSU_PMU_NPU_IDLE);
// Enable the 5 counters
ETHOSU_PMU_Set_EVTYPER(drv, 5, ETHOSU_PMU_MAC_ACTIVE);
ETHOSU_PMU_Set_EVTYPER(drv, 6, ETHOSU_PMU_WD_ACTIVE);
// Enable the 7 counters
ETHOSU_PMU_CNTR_Enable(
drv,
ETHOSU_PMU_CNT1_Msk | ETHOSU_PMU_CNT2_Msk | ETHOSU_PMU_CNT3_Msk |
ETHOSU_PMU_CNT4_Msk | ETHOSU_PMU_CNT5_Msk);
ETHOSU_PMU_CNT4_Msk | ETHOSU_PMU_CNT5_Msk | ETHOSU_PMU_CNT6_Msk |
ETHOSU_PMU_CNT7_Msk);
#else
#error No NPU target defined
#endif
Expand Down Expand Up @@ -214,7 +217,7 @@ void StopMeasurements(int num_inferences) {
#elif defined(ETHOSU85)
ET_LOG(
Info,
"Ethos-U PMU Events:[ETHOSU_PMU_SRAM_RD_DATA_BEAT_RECEIVED, ETHOSU_PMU_SRAM_WR_DATA_BEAT_WRITTEN, ETHOSU_PMU_EXT_RD_DATA_BEAT_RECEIVED, ETHOSU_PMU_EXT_WR_DATA_BEAT_WRITTEN, ETHOSU_PMU_NPU_IDLE]");
"Ethos-U PMU Events:[ETHOSU_PMU_SRAM_RD_DATA_BEAT_RECEIVED, ETHOSU_PMU_SRAM_WR_DATA_BEAT_WRITTEN, ETHOSU_PMU_EXT_RD_DATA_BEAT_RECEIVED, ETHOSU_PMU_EXT_WR_DATA_BEAT_WRITTEN, ETHOSU_PMU_NPU_IDLE, ETHOSU_PMU_MAC_ACTIVE, ETHOSU_PMU_WD_ACTIVE]");
#else
#error No NPU target defined
#endif
Expand Down
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