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https://github.com/CovidBraceletPrj/CovidBracelet.git
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Contacts: Add first draft of test functions
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7575ab853f
commit
76ce19d94a
120
src/contacts.c
120
src/contacts.c
@ -54,7 +54,47 @@ int register_record(record_t* record) {
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return rc;
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}
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int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t* ctx, int count) {
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int get_number_of_infected_for_multiple_intervals_dumb(infected_for_period_key_ctx_t* ctx, int count) {
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record_iterator_t iterator;
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int rc = ens_records_iterator_init_timerange(&iterator, NULL, NULL);
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if (rc) {
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// there was a general error, so just do nothing
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return rc;
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}
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while (!iterator.finished) {
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for (int i = 0; i < count; i++) {
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if (memcmp(&iterator.current.rolling_proximity_identifier, &ctx[i].interval_identifier,
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sizeof(rolling_proximity_identifier_t)) == 0) {
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ctx[i].infected++;
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}
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}
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ens_records_iterator_next(&iterator);
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}
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return 0;
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}
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int get_number_of_infected_for_multiple_intervals_simple(infected_for_period_key_ctx_t* ctx, int count) {
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printk("start of simple\n");
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record_iterator_t iterator;
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for (int i = 0; i < count; i++) {
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int rc = ens_records_iterator_init_timerange(&iterator, &ctx[i].search_start, &ctx[i].search_end);
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if (rc) {
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// on error, skip this rpi
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continue;
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}
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while (!iterator.finished) {
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if (memcmp(&iterator.current.rolling_proximity_identifier, &ctx[i].interval_identifier,
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sizeof(rolling_proximity_identifier_t)) == 0) {
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ctx[i].infected++;
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}
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ens_records_iterator_next(&iterator);
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}
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}
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return 0;
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}
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int get_number_of_infected_for_multiple_intervals_optimized(infected_for_period_key_ctx_t* ctx, int count) {
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printk("start of opt\n");
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record_iterator_t iterator;
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int i = 0;
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while (i < count) {
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@ -84,6 +124,29 @@ int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t*
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return 0;
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}
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void measure_perf(test_func_t func, const char* label, infected_for_period_key_ctx_t* infectedIntervals, int count) {
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printk("---------------------------\n'%s': starting measurement\n", label);
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timing_t start_time, end_time;
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uint64_t total_cycles;
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uint64_t total_ns;
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timing_init();
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timing_start();
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start_time = timing_counter_get();
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func(infectedIntervals, count);
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end_time = timing_counter_get();
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total_cycles = timing_cycles_get(&start_time, &end_time);
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total_ns = timing_cycles_to_ns(total_cycles);
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timing_stop();
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printk("\n'%s' took %lld ns\n---------------------------\n", label, total_ns);
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}
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void setup_test_data() {
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ENPeriodKey infectedPeriodKey = {
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.b = {0x75, 0xc7, 0x34, 0xc6, 0xdd, 0x1a, 0x78, 0x2d, 0xe7, 0xa9, 0x65, 0xda, 0x5e, 0xb9, 0x31, 0x25}};
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@ -119,42 +182,29 @@ void setup_test_data() {
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printk("period %d\n", i);
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}
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int infectedCount = 36;
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int spread = 2;
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// setup our ordered array with infected RPIs
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infected_for_period_key_ctx_t infectedIntervals[10];
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for (int i = 0; i < 10; i++) {
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infected_for_period_key_ctx_t infectedIntervals[infectedCount * spread];
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for (int i = 0; i < infectedCount; i++) {
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int intervalNumber = (i + 2) * 2;
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float offset = 1.5;
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infectedIntervals[i].infected = 0;
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infectedIntervals[i].search_start =
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(intervalNumber - offset) * EN_INTERVAL_LENGTH; // start one and a half interval before
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infectedIntervals[i].search_end =
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(intervalNumber + offset) * EN_INTERVAL_LENGTH; // end one and a half interval after
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en_derive_interval_identifier((ENIntervalIdentifier*)&infectedIntervals[i].interval_identifier, &infectedPik,
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intervalNumber);
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float range = 1.5;
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for (int j = 0; j < spread; j++) {
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int offset = (EN_INTERVAL_LENGTH / spread) * j;
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infectedIntervals[i * spread + j].infected = 0;
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infectedIntervals[i * spread + j].search_start =
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(intervalNumber - range) * EN_INTERVAL_LENGTH + offset; // start one and a half interval before
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infectedIntervals[i * spread + j].search_end =
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(intervalNumber + range) * EN_INTERVAL_LENGTH + offset; // end one and a half interval after
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en_derive_interval_identifier(&infectedIntervals[i * spread + j].interval_identifier, &infectedPik,
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intervalNumber);
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}
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}
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printk("starting measurement\n");
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timing_t start_time, end_time;
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uint64_t total_cycles;
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uint64_t total_ns;
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timing_init();
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timing_start();
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start_time = timing_counter_get();
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get_number_of_infected_for_multiple_intervals(infectedIntervals, 10);
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end_time = timing_counter_get();
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for (int i = 0; i < 10; i++) {
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printk("ctx: %d infected: %d\n", i, infectedIntervals[i].infected);
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}
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total_cycles = timing_cycles_get(&start_time, &end_time);
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total_ns = timing_cycles_to_ns(total_cycles);
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timing_stop();
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printk("timing took %lld ns\n", total_ns);
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measure_perf(get_number_of_infected_for_multiple_intervals_dumb, "dumb", infectedIntervals, infectedCount * spread);
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measure_perf(get_number_of_infected_for_multiple_intervals_simple, "simple", infectedIntervals,
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infectedCount * spread);
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measure_perf(get_number_of_infected_for_multiple_intervals_optimized, "optimized", infectedIntervals,
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infectedCount * spread);
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}
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@ -20,7 +20,9 @@ typedef struct infected_for_period_key_ctx {
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int infected;
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time_t search_start;
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time_t search_end;
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} infected_for_period_key_ctx_t;
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} __packed infected_for_period_key_ctx_t;
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typedef int (*test_func_t)(infected_for_period_key_ctx_t* infectedIntervals, int count);
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void print_key(_ENBaseKey* key);
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void print_rpi(rolling_proximity_identifier_t* rpi);
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@ -52,7 +54,7 @@ int get_number_of_infected_for_period(ENPeriodKey* key, time_t timestamp);
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*
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* @returns 0 in case of success, -ERRNO in case of an error
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*/
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int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t* ctx, int count);
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// int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t* ctx, int count);
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/**
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* Setup fixed test data for storage.
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