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>
46 lines
1.5 KiB
C
46 lines
1.5 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 <util.h>
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#include <arch/kernel/traps.h>
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#include <smp/lock.h>
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/* This C function should be the first thing called from C after entry from
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* assembly. It provides a single place to do any entry work that is not
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* done in assembly for various reasons */
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static inline void c_entry_hook(void)
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{
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arch_c_entry_hook();
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#if defined(CONFIG_BENCHMARK_TRACK_KERNEL_ENTRIES) || defined(CONFIG_BENCHMARK_TRACK_UTILISATION)
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ksEnter = timestamp();
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#endif
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}
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/* This C function should be the last thing called from C before exiting
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* the kernel (be it to assembly or returning to user space). It provides
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* a place to provide any additional instrumentation or functionality
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* in C before leaving the kernel */
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static inline void c_exit_hook(void)
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{
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#ifdef CONFIG_BENCHMARK_TRACK_KERNEL_ENTRIES
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benchmark_track_exit();
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#endif /* CONFIG_BENCHMARK_TRACK_KERNEL_ENTRIES */
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#ifdef CONFIG_BENCHMARK_TRACK_UTILISATION
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if (likely(NODE_STATE(benchmark_log_utilisation_enabled))) {
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timestamp_t exit = timestamp();
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NODE_STATE(ksCurThread)->benchmark.number_kernel_entries++;
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NODE_STATE(ksCurThread)->benchmark.kernel_utilisation += exit - ksEnter;
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NODE_STATE(benchmark_kernel_number_entries)++;
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NODE_STATE(benchmark_kernel_time) += exit - ksEnter;
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}
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#endif /* CONFIG_BENCHMARK_TRACK_UTILISATION */
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arch_c_exit_hook();
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}
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