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multitiersimulator.c
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multitiersimulator.c
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#include<stdio.h>
#include<libCacheSim.h>
#include "multitiersimulator.h"
bool write_stat_to_file(char* op_fname, traceStats multi_tier_stats){
FILE *out_file = fopen(op_fname, "a");
if(out_file == NULL){
return false;
}
fprintf(out_file, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n", multi_tier_stats.total_count, multi_tier_stats.read_count,
multi_tier_stats.write_count, multi_tier_stats.tier_1_read_hit, multi_tier_stats.tier_2_read_hit, multi_tier_stats.tier_1_read_miss,
multi_tier_stats.tier_2_read_miss, multi_tier_stats.tier_1_write_hit, multi_tier_stats.tier_2_write_hit, multi_tier_stats.tier_1_write_miss,
multi_tier_stats.tier_2_write_miss, multi_tier_stats.tier_1_total_hit, multi_tier_stats.tier_2_total_hit, multi_tier_stats.tier_1_total_miss,
multi_tier_stats.tier_2_total_miss, multi_tier_stats.tier_2_not_checked);
fclose(out_file);
return true;
}
void inclusive_caching(char* filename, uint64_t tier_1_size, uint64_t tier_2_size, char* op_fname){
reader_init_param_t init_csv = {
.delimiter=',',
.obj_id_field=1,
.op_field=2,
.has_header=false
};
reader_t *reader_csv = open_trace(filename, CSV_TRACE, OBJ_ID_NUM, &init_csv);
request_t *req = new_request();
common_cache_params_t tier_1_params = {.cache_size=tier_1_size};
common_cache_params_t tier_2_params = {.cache_size=tier_2_size};
cache_t *tier_1_cache = create_cache("LRU", tier_1_params, NULL);
cache_t *tier_2_cache = create_cache("LRU", tier_2_params, NULL);
traceStats multi_tier_stats = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1};
while(read_one_req(reader_csv, req) == 0){
cache_ck_res_e tier_1_check = tier_1_cache->check(tier_1_cache, req, true);
cache_ck_res_e tier_2_check = tier_2_cache->check(tier_2_cache, req, true);
if((tier_1_check == cache_ck_miss) && (tier_2_check == cache_ck_miss)){
// Condition where the object is not found in both layers.
tier_1_cache->get(tier_1_cache, req);
tier_2_cache->get(tier_2_cache, req);
if(req->op == OP_READ){
multi_tier_stats.tier_1_read_miss++;
multi_tier_stats.tier_2_read_miss++;
multi_tier_stats.read_count++;
}else{
multi_tier_stats.tier_1_write_miss++;
multi_tier_stats.tier_2_write_miss++;
multi_tier_stats.write_count++;
}
multi_tier_stats.total_count++;
multi_tier_stats.tier_1_total_miss++;
multi_tier_stats.tier_2_total_miss++;
}
if((tier_1_check == cache_ck_miss) && (tier_2_check != cache_ck_miss)){
// Condition where the object is found in layer 2, but not layer 1
tier_1_cache->get(tier_1_cache, req);
tier_2_cache->get(tier_2_cache, req);
if(req->op == OP_READ){
multi_tier_stats.tier_1_read_miss++;
multi_tier_stats.tier_2_read_hit++;
multi_tier_stats.read_count++;
}else{
multi_tier_stats.tier_1_write_miss++;
multi_tier_stats.tier_2_write_hit++;
multi_tier_stats.write_count++;
}
multi_tier_stats.total_count++;
multi_tier_stats.tier_1_total_miss++;
multi_tier_stats.tier_2_total_hit++;
}
if((tier_1_check != cache_ck_miss) && (tier_2_check != cache_ck_miss)){
// Condition where the object is found in both layers.
tier_1_cache->get(tier_1_cache, req);
if(req->op == OP_READ){
multi_tier_stats.tier_1_read_hit++;
multi_tier_stats.tier_2_read_hit++;
multi_tier_stats.read_count++;
}else{
multi_tier_stats.tier_1_write_hit++;
multi_tier_stats.tier_2_write_hit++;
multi_tier_stats.write_count++;
}
multi_tier_stats.total_count++;
multi_tier_stats.tier_1_total_hit++;
multi_tier_stats.tier_2_total_hit++;
}
}
tier_1_cache->cache_free(tier_1_cache);
tier_2_cache->cache_free(tier_2_cache);
free_request(req);
close_reader(reader_csv);
write_stat_to_file(op_fname, multi_tier_stats);
}
traceStats exclusive_caching(char *filename, uint64_t tier_1_size, uint64_t tier_2_size, uint64_t obj_id, uint64_t op){
reader_init_param_t init_csv = {
.delimiter=',',
.obj_id_field=obj_id,
.op_field=op,
.has_header=false
};
reader_t *reader_csv = open_trace(filename, CSV_TRACE, OBJ_ID_NUM, &init_csv);
request_t *req = new_request();
common_cache_params_t tier_1_params = {.cache_size=tier_1_size};
common_cache_params_t tier_2_params = {.cache_size=tier_2_size};
cache_t *tier_1_cache = create_cache("LRU", tier_1_params, NULL);
cache_t *tier_2_cache = create_cache("LRU", tier_2_params, NULL);
traceStats exclusive_stats = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1};
exclusive_stats.tier_2_not_checked++;
while(read_one_req(reader_csv, req) == 0){
cache_ck_res_e tier_1_check = tier_1_cache->check(tier_1_cache, req, true);
cache_ck_res_e tier_2_check = tier_2_cache->check(tier_2_cache, req, true);
exclusive_stats.total_count++;
// print_request(req);
if(unlikely(tier_1_cache->occupied_size < tier_1_cache->cache_size)){
exclusive_stats.tier_2_not_checked++;
if(tier_1_check == cache_ck_hit){
// printf("Tier 1 cache hit. Size lower.\n");
tier_1_cache->get(tier_1_cache, req);
if(req->op == OP_WRITE){
exclusive_stats.write_count++;
exclusive_stats.tier_1_write_hit++;
}else{
exclusive_stats.read_count++;
exclusive_stats.tier_1_read_hit++;
}
exclusive_stats.tier_1_total_hit++;
}else{
// printf("Tier 1 cache miss. Size lower.\n");
tier_1_cache->get(tier_1_cache, req);
if(req->op == OP_WRITE){
exclusive_stats.write_count++;
exclusive_stats.tier_1_write_miss++;
}else{
exclusive_stats.read_count++;
exclusive_stats.tier_1_read_miss++;
}
}
}else{
if(tier_1_check == cache_ck_hit){
exclusive_stats.tier_2_not_checked++;
// printf("Tier 1 cache hit. Size higher.\n");
tier_1_cache->get(tier_1_cache, req);
if(req->op == OP_WRITE){
exclusive_stats.write_count++;
exclusive_stats.tier_1_write_hit++;
}else{
exclusive_stats.read_count++;
exclusive_stats.tier_1_read_hit++;
}
exclusive_stats.tier_1_total_hit++;
}else if((tier_1_check == cache_ck_miss) && (tier_2_check == cache_ck_hit)){
// printf("Tier 1 miss. Tier 2 hit. Size lower.\n");
if(req->op == OP_READ){
exclusive_stats.read_count++;
exclusive_stats.tier_1_read_miss++;
exclusive_stats.tier_2_read_hit++;
exclusive_stats.tier_1_total_miss++;
exclusive_stats.tier_2_total_hit++;
}else{
exclusive_stats.write_count++;
exclusive_stats.tier_1_write_miss++;
exclusive_stats.tier_2_write_hit++;
exclusive_stats.tier_1_total_miss++;
exclusive_stats.tier_2_total_hit++;
}
cache_obj_t evicted_object;
tier_1_cache->evict(tier_1_cache, req, &evicted_object);
tier_1_cache->get(tier_1_cache, req);
req->obj_id_int = evicted_object.obj_id_int;
req->op = OP_WRITE;
tier_2_cache->get(tier_2_cache, req);
}else if((tier_1_check == cache_ck_miss) && (tier_1_check == cache_ck_miss)){
// printf("Tier 1 miss. Tier 2 hit. Size lower.\n");
if(req->op == OP_READ){
exclusive_stats.read_count++;
exclusive_stats.tier_1_read_miss++;
exclusive_stats.tier_2_read_miss++;
exclusive_stats.tier_1_total_miss++;
exclusive_stats.tier_2_total_miss++;
}else{
exclusive_stats.write_count++;
exclusive_stats.tier_1_write_miss++;
exclusive_stats.tier_2_write_miss++;
exclusive_stats.tier_1_total_miss++;
exclusive_stats.tier_2_total_miss++;
}
// printf("Miss in both tiers\n");
cache_obj_t evicted_object;
tier_1_cache->evict(tier_1_cache, req, &evicted_object);
tier_1_cache->get(tier_1_cache, req);
req->obj_id_int = evicted_object.obj_id_int;
req->op = OP_WRITE;
tier_2_cache->get(tier_2_cache, req);
}
}
}
tier_1_cache->cache_free(tier_1_cache);
tier_2_cache->cache_free(tier_2_cache);
free_request(req);
close_reader(reader_csv);
// write_stat_to_file(op_fname, exclusive_stats);
return exclusive_stats;
}
opTypeStats trace_raw_stats(char *input_filename, uint64_t object_id, uint64_t op_field){
reader_init_param_t init_csv = {
.delimiter=',',
.obj_id_field=object_id,
.op_field=op_field,
.has_header=false
};
opTypeStats file_stats = {0, 0};
reader_t *reader_csv = open_trace(input_filename, CSV_TRACE, OBJ_ID_NUM, &init_csv);
request_t *req = new_request();
while (read_one_req(reader_csv, req) == 0){
if(req->op == OP_READ){
file_stats.read_count++;
}
if(req->op == OP_WRITE){
file_stats.write_count++;
}
}
return file_stats;
}
void read_file(char* filename){
reader_init_param_t init_csv = {
.delimiter=',',
.obj_id_field=2,
.op_field=3,
.has_header=false
};
reader_t *reader_csv = open_trace(filename, CSV_TRACE, OBJ_ID_NUM, &init_csv);
request_t *req = new_request();
int i = 0;
while(read_one_req(reader_csv, req) == 0){
printf("Sno: %d, Obj: %ld, Op: %d\n", i, req->obj_id_int, req->op);
++i;
}
free_request(req);
close_reader(reader_csv);
}
// int main(int argc, char* argv[]){
// if(argc != 6){
// printf("Usage: ./new.o <file_name> <tier_1_size> <tier_2_size> <output_file> <incl_excl(0,1)>\n");
// }
// uint64_t tier_1_size = atoi(argv[2]);
// uint64_t tier_2_size = atoi(argv[3]);
// uint64_t incl_excl = atoi(argv[5]);
// // read_file(argv[1]);
// opTypeStats values = trace_raw_stats(argv[1], 2, 3);
// printf("Read Count is: %d\n", values.read_count);
// printf("Write Count is: %d\n", values.write_count);
// // if(incl_excl == 0){
// // inclusive_caching(argv[1], tier_1_size, tier_2_size, argv[4]);
// // }else{
// // exclusive_caching(argv[1], tier_1_size, tier_2_size, argv[4]);
// // }
// }