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Contacts: Add first draft of test functions

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H1ghBre4k3r 2021-08-09 12:49:46 +02:00 committed by Patrick Rathje
parent 7575ab853f
commit 76ce19d94a
2 changed files with 89 additions and 37 deletions
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120
src/contacts.c
View File

@ -54,7 +54,47 @@ int register_record(record_t* record) {
return rc;
}
int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t* ctx, int count) {
int get_number_of_infected_for_multiple_intervals_dumb(infected_for_period_key_ctx_t* ctx, int count) {
record_iterator_t iterator;
int rc = ens_records_iterator_init_timerange(&iterator, NULL, NULL);
if (rc) {
// there was a general error, so just do nothing
return rc;
}
while (!iterator.finished) {
for (int i = 0; i < count; i++) {
if (memcmp(&iterator.current.rolling_proximity_identifier, &ctx[i].interval_identifier,
sizeof(rolling_proximity_identifier_t)) == 0) {
ctx[i].infected++;
}
}
ens_records_iterator_next(&iterator);
}
return 0;
}
int get_number_of_infected_for_multiple_intervals_simple(infected_for_period_key_ctx_t* ctx, int count) {
printk("start of simple\n");
record_iterator_t iterator;
for (int i = 0; i < count; i++) {
int rc = ens_records_iterator_init_timerange(&iterator, &ctx[i].search_start, &ctx[i].search_end);
if (rc) {
// on error, skip this rpi
continue;
}
while (!iterator.finished) {
if (memcmp(&iterator.current.rolling_proximity_identifier, &ctx[i].interval_identifier,
sizeof(rolling_proximity_identifier_t)) == 0) {
ctx[i].infected++;
}
ens_records_iterator_next(&iterator);
}
}
return 0;
}
int get_number_of_infected_for_multiple_intervals_optimized(infected_for_period_key_ctx_t* ctx, int count) {
printk("start of opt\n");
record_iterator_t iterator;
int i = 0;
while (i < count) {
@ -84,6 +124,29 @@ int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t*
return 0;
}
void measure_perf(test_func_t func, const char* label, infected_for_period_key_ctx_t* infectedIntervals, int count) {
printk("---------------------------\n'%s': starting measurement\n", label);
timing_t start_time, end_time;
uint64_t total_cycles;
uint64_t total_ns;
timing_init();
timing_start();
start_time = timing_counter_get();
func(infectedIntervals, count);
end_time = timing_counter_get();
total_cycles = timing_cycles_get(&start_time, &end_time);
total_ns = timing_cycles_to_ns(total_cycles);
timing_stop();
printk("\n'%s' took %lld ns\n---------------------------\n", label, total_ns);
}
void setup_test_data() {
ENPeriodKey infectedPeriodKey = {
.b = {0x75, 0xc7, 0x34, 0xc6, 0xdd, 0x1a, 0x78, 0x2d, 0xe7, 0xa9, 0x65, 0xda, 0x5e, 0xb9, 0x31, 0x25}};
@ -119,42 +182,29 @@ void setup_test_data() {
printk("period %d\n", i);
}
int infectedCount = 36;
int spread = 2;
// setup our ordered array with infected RPIs
infected_for_period_key_ctx_t infectedIntervals[10];
for (int i = 0; i < 10; i++) {
infected_for_period_key_ctx_t infectedIntervals[infectedCount * spread];
for (int i = 0; i < infectedCount; i++) {
int intervalNumber = (i + 2) * 2;
float offset = 1.5;
infectedIntervals[i].infected = 0;
infectedIntervals[i].search_start =
(intervalNumber - offset) * EN_INTERVAL_LENGTH; // start one and a half interval before
infectedIntervals[i].search_end =
(intervalNumber + offset) * EN_INTERVAL_LENGTH; // end one and a half interval after
en_derive_interval_identifier((ENIntervalIdentifier*)&infectedIntervals[i].interval_identifier, &infectedPik,
intervalNumber);
float range = 1.5;
for (int j = 0; j < spread; j++) {
int offset = (EN_INTERVAL_LENGTH / spread) * j;
infectedIntervals[i * spread + j].infected = 0;
infectedIntervals[i * spread + j].search_start =
(intervalNumber - range) * EN_INTERVAL_LENGTH + offset; // start one and a half interval before
infectedIntervals[i * spread + j].search_end =
(intervalNumber + range) * EN_INTERVAL_LENGTH + offset; // end one and a half interval after
en_derive_interval_identifier(&infectedIntervals[i * spread + j].interval_identifier, &infectedPik,
intervalNumber);
}
}
printk("starting measurement\n");
timing_t start_time, end_time;
uint64_t total_cycles;
uint64_t total_ns;
timing_init();
timing_start();
start_time = timing_counter_get();
get_number_of_infected_for_multiple_intervals(infectedIntervals, 10);
end_time = timing_counter_get();
for (int i = 0; i < 10; i++) {
printk("ctx: %d infected: %d\n", i, infectedIntervals[i].infected);
}
total_cycles = timing_cycles_get(&start_time, &end_time);
total_ns = timing_cycles_to_ns(total_cycles);
timing_stop();
printk("timing took %lld ns\n", total_ns);
measure_perf(get_number_of_infected_for_multiple_intervals_dumb, "dumb", infectedIntervals, infectedCount * spread);
measure_perf(get_number_of_infected_for_multiple_intervals_simple, "simple", infectedIntervals,
infectedCount * spread);
measure_perf(get_number_of_infected_for_multiple_intervals_optimized, "optimized", infectedIntervals,
infectedCount * spread);
}

6
src/contacts.h
View File

@ -20,7 +20,9 @@ typedef struct infected_for_period_key_ctx {
int infected;
time_t search_start;
time_t search_end;
} infected_for_period_key_ctx_t;
} __packed infected_for_period_key_ctx_t;
typedef int (*test_func_t)(infected_for_period_key_ctx_t* infectedIntervals, int count);
void print_key(_ENBaseKey* key);
void print_rpi(rolling_proximity_identifier_t* rpi);
@ -52,7 +54,7 @@ int get_number_of_infected_for_period(ENPeriodKey* key, time_t timestamp);
*
* @returns 0 in case of success, -ERRNO in case of an error
*/
int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t* ctx, int count);
// int get_number_of_infected_for_multiple_intervals(infected_for_period_key_ctx_t* ctx, int count);
/**
* Setup fixed test data for storage.