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37 lines
1.1 KiB
37 lines
1.1 KiB
#include <stdint.h>
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#include <threads.h>
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#include "arch/getcycles.h"
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#include "debuglog.h"
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extern uint32_t runtime_processor_speed_MHz;
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extern uint32_t runtime_quantum_us;
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/* Implemented by listener and workers */
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thread_local uint64_t generic_thread_lock_duration = 0;
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thread_local uint64_t generic_thread_lock_longest = 0;
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thread_local uint64_t generic_thread_start_timestamp = 0;
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thread_local const char *generic_thread_lock_longest_fn = NULL;
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void
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generic_thread_initialize()
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{
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generic_thread_start_timestamp = __getcycles();
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generic_thread_lock_longest = 0;
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generic_thread_lock_duration = 0;
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}
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/**
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* Reports lock contention
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*/
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void
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generic_thread_dump_lock_overhead()
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{
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uint64_t duration = __getcycles() - generic_thread_start_timestamp;
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debuglog("Locks consumed %lu / %lu cycles, or %f%%\n", generic_thread_lock_duration, duration,
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(double)generic_thread_lock_duration / duration * 100);
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debuglog("Longest Held Lock was %lu cycles, or %f quantums\n", generic_thread_lock_longest,
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(double)generic_thread_lock_longest / ((uint64_t)runtime_processor_speed_MHz * runtime_quantum_us));
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}
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