3 int init_dedupe_working_set_seeds(struct thread_data *td)
6 struct frand_state dedupe_working_set_state = {0};
8 if (!td->o.dedupe_percentage || !(td->o.dedupe_mode == DEDUPE_MODE_WORKING_SET))
12 * The dedupe working set keeps seeds of unique data (generated by buf_state).
13 * Dedupe-ed pages will be generated using those seeds.
15 td->num_unique_pages = (td->o.size * (unsigned long long)td->o.dedupe_working_set_percentage / 100) / td->o.min_bs[DDIR_WRITE];
16 td->dedupe_working_set_states = malloc(sizeof(struct frand_state) * td->num_unique_pages);
17 if (!td->dedupe_working_set_states) {
18 log_err("fio: could not allocate dedupe working set\n");
21 frand_copy(&dedupe_working_set_state, &td->buf_state);
22 for (i = 0; i < td->num_unique_pages; i++) {
23 frand_copy(&td->dedupe_working_set_states[i], &dedupe_working_set_state);
24 __get_next_seed(&dedupe_working_set_state);