1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <unistd.h>
4 #include <time.h>
5 #include <sys/time.h>
6
7 #include <sqlite3.h>
8
time_float()9 static double time_float() {
10 struct timeval tv;
11 gettimeofday(&tv, NULL);
12 return tv.tv_sec + (double)tv.tv_usec / 1000000.0;
13 }
14
15
main(int argc,char ** argv)16 int main(int argc, char** argv) {
17 int i, count, t;
18 double time1, time2;
19 sqlite3 *db;
20 char *msg;
21 char sql[200];
22
23 if (sqlite3_open(":memory:", &db) != SQLITE_OK) {
24 fprintf(stderr, "Error: %s\n", msg);
25 exit(1);
26 }
27
28 sqlite3_exec(db, "CREATE TABLE cache (key varchar not null, value varchar not null, time integer not null, primary key(key))", NULL, NULL, NULL);
29 sqlite3_exec(db, "CREATE INDEX cache_time ON cache(time)", NULL, NULL, NULL);
30
31 count = 100000;
32
33 printf("Timing %d INSERTs...\n", count);
34 t = time(NULL);
35 time1 = time_float();
36 for (i = 0; i < count; i++) {
37 sprintf(sql, "INSERT INTO cache(key, value, time) VALUES ('key%d', 'value %d', %d)", i, i, t);
38 if (sqlite3_exec(db, sql, NULL, NULL, &msg) != SQLITE_OK) {
39 fprintf(stderr, "sqlite error %s\n", msg);
40 exit(1);
41 }
42 }
43 time2 = time_float();
44 printf("%0.1f qps\n", (float)(count / (time2-time1)));
45
46
47 printf("Timing %d SELECTs...\n", count);
48 time1 = time_float();
49 for (i = 0; i < count; i++) {
50 sprintf(sql, "SELECT value FROM cache WHERE key='key%d'", i);
51 if (sqlite3_exec(db, sql, NULL, NULL, &msg) != SQLITE_OK) {
52 fprintf(stderr, "sqlite error %s\n", msg);
53 exit(1);
54 }
55 }
56 time2 = time_float();
57 printf("%0.1f qps\n", (float)(count / (time2-time1)));
58
59
60 return 0;
61 }
62