88a7d138c4
For each thread also track number of times scheduled, number of kernel entries and amount of cycles spent inside the kernel. Also add core-wide totals for each. Signed-off-by: Kent McLeod <Kent.Mcleod@data61.csiro.au>
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* Copyright 2016, General Dynamics C4 Systems
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#pragma once
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#include <config.h>
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#include <arch/benchmark.h>
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#include <sel4/benchmark_utilisation_types.h>
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#include <sel4/arch/constants.h>
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#include <model/statedata.h>
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#ifdef CONFIG_BENCHMARK_TRACK_UTILISATION
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extern timestamp_t ksEnter;
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void benchmark_track_utilisation_dump(void);
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void benchmark_track_reset_utilisation(tcb_t *tcb);
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/* Calculate and add the utilisation time from when the heir started to run i.e. scheduled
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* and until it's being kicked off
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*/
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static inline void benchmark_utilisation_switch(tcb_t *heir, tcb_t *next)
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{
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/* Add heir thread utilisation */
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if (likely(NODE_STATE(benchmark_log_utilisation_enabled))) {
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/* Check if an overflow occurred while we have been in the kernel */
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if (likely(ksEnter > heir->benchmark.schedule_start_time)) {
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heir->benchmark.utilisation += (ksEnter - heir->benchmark.schedule_start_time);
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} else {
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#ifdef CONFIG_ARM_ENABLE_PMU_OVERFLOW_INTERRUPT
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heir->benchmark.utilisation += (UINT32_MAX - heir->benchmark.schedule_start_time) + ksEnter;
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armv_handleOverflowIRQ();
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#endif /* CONFIG_ARM_ENABLE_PMU_OVERFLOW_INTERRUPT */
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}
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/* Reset next thread utilisation */
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next->benchmark.schedule_start_time = ksEnter;
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next->benchmark.number_schedules++;
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NODE_STATE(benchmark_kernel_number_schedules)++;
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}
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}
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/* Add the time between the last thread got scheduled and when to stop
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* benchmarks
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*/
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static inline void benchmark_utilisation_finalise(void)
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{
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/* Add the time between when NODE_STATE(ksCurThread), and benchmark finalise */
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benchmark_utilisation_switch(NODE_STATE(ksCurThread), NODE_STATE(ksIdleThread));
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NODE_STATE(benchmark_end_time) = ksEnter;
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NODE_STATE(benchmark_log_utilisation_enabled) = false;
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}
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#endif /* CONFIG_BENCHMARK_TRACK_UTILISATION */
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