void print_extents(struct extent_info_t *extent_info) { struct extent_score_t *extent_score; extent_score = convert_extent_info_to_extent_score(extent_info); qsort(extent_score, EXTENTS, sizeof(struct extent_score_t), extent_cmp); init_le_to_pe(); time_t res; res = time(NULL); printf("\n\n"); printf("%s", asctime(localtime(&res))); printf("%i most active physical extents: (from most to least)\n", ext_to_print); for(int i=EXTENTS-1, num=0; num<ext_to_print; i--) { struct pv_info *ret; if(!extent_score[i].read_score && !extent_score[i].write_score) break; ret = LE_to_PE(vg_name, lv_name, extent_score[i].offset); if(num%10==9) printf("%lu\n", ret->start_seg); else printf("%lu:", ret->start_seg); num++; free(ret->pv_name); free(ret); } printf("\n\n"); qsort(extent_score, EXTENTS, sizeof(struct extent_score_t), extent_read_cmp); printf("%i most read extents (from most to least):\n", ext_to_print); for(int i=EXTENTS-1, num=0; num<ext_to_print; i--) { struct pv_info *ret; if(!extent_score[i].read_score) break; ret = LE_to_PE(vg_name, lv_name, extent_score[i].offset); if(num%10==9) printf("%lu\n", ret->start_seg); else printf("%lu:", ret->start_seg); num++; free(ret->pv_name); free(ret); } printf("\n\n"); qsort(extent_score, EXTENTS, sizeof(struct extent_score_t), extent_write_cmp); printf("%i most write extents (from most to least):\n", ext_to_print); for(int i=EXTENTS-1, num=0; num<ext_to_print; i--) { struct pv_info *ret; if(!extent_score[i].write_score) break; ret = LE_to_PE(vg_name, lv_name, extent_score[i].offset); if(num%10==9) printf("%lu\n", ret->start_seg); else printf("%lu:", ret->start_seg); num++; free(ret->pv_name); free(ret); } free(extent_score); le_to_pe_exit(); }
int main(int argc, char **argv) { int ret = 0; int n; double mean_lifetime = 3 * 24 * 60 * 60; if (parse_arguments(argc, argv)) return 1; struct activity_stats *as = NULL; if (file == NULL) { fprintf(stderr, "No file name provided\n"); usage(); return 1; } if (!print_le && (!lv_name || !vg_name)) { fprintf(stderr, "You must ask for logical extents or provide volume" " group and logical volume name.\n"); usage(); return 1; } struct program_params pp = { .lvm2_handle = NULL }; if (!print_le) { init_le_to_pe(&pp); } n = read_activity_stats(&as, file); assert(!n); struct block_scores *bs = NULL; if(get_max) get_best_blocks_with_max_score(as, &bs, blocks, read_mult, write_mult, mean_lifetime, max_score); else get_best_blocks(as, &bs, blocks, read_mult, write_mult, mean_lifetime); if (pvmove_output) { if (print_le) { printf("%llu", bs[0].offset); for (int i=1; i< blocks; i++) { printf(":%llu", bs[i].offset); } printf("\n"); } else { struct pv_info *pvi; struct pv_info *pvn; pvi = LE_to_PE(vg_name, lv_name, bs[0].offset); printf("%s:%llu", pvi->pv_name, pvi->start_seg); for (int i=1; i<blocks; i++) { pvn = LE_to_PE(vg_name, lv_name, bs[i].offset); if (!pvn) continue; if (!strcmp(pvi->pv_name, pvn->pv_name)) { printf(":%llu", pvn->start_seg); pv_info_free(pvn); continue; } else { printf("\n%s:%llu", pvn->pv_name, pvn->start_seg); pv_info_free(pvi); pvi = pvn; continue; } } printf("\n"); pv_info_free(pvi); } } else { if (!print_le) { fprintf(stderr, "Unsupported combination of parameters" " (add --pvmove or --LE)\n"); } else print_block_scores(bs, blocks); } free(bs); bs = NULL; //dump_activity_stats(as); destroy_activity_stats(as); as = NULL; if (!print_le) { le_to_pe_exit(&pp); } return ret; }
int main(int argc, char **argv) { struct program_params pp = { .lvm2_handle = NULL }; init_le_to_pe(&pp); if (argc != 4) { printf("Usage: %s VolumeGroupName LogicalVolumeName" " LogicalVolumeExtent\n", argv[0]); le_to_pe_exit(&pp); return 1; } for(int i=0; i < pv_segments_num; i++) if(!strcmp(pv_segments[i].lv_name, argv[1])) printf("%s %li-%li (%li-%li)\n", pv_segments[i].pv_name, pv_segments[i].pv_start, pv_segments[i].pv_start+pv_segments[i].pv_length, pv_segments[i].lv_start, pv_segments[i].lv_start+pv_segments[i].pv_length); if (argc <= 2) return 0; struct pv_info *pv_info; pv_info = LE_to_PE(argv[1], argv[2], atoi(argv[3])); if (pv_info) printf("LE no %i of %s-%s is at: %s:%li\n", atoi(argv[3]), argv[1], argv[2], pv_info->pv_name, pv_info->start_seg); else printf("no LE found\n"); printf("vg: %s, extent size: %lu bytes\n", argv[1], get_pe_size(argv[1])); long int free_extents = get_free_extent_number(argv[1], pv_info->pv_name); printf("vg: %s, pv: %s, free space: %lue (%luB)\n", argv[1], pv_info->pv_name, free_extents, free_extents * get_pe_size(argv[1])); long int used_extents = get_used_space_on_pv(argv[1], argv[2], pv_info->pv_name); printf("Space used by lv %s on pv %s: %lue (%luB)\n", argv[2], pv_info->pv_name, used_extents, used_extents * get_pe_size(argv[1])); struct le_info le_inf; le_inf = get_first_LE_info(argv[1], argv[2], pv_info->pv_name); printf("First LE on %s is %li at PE %li\n", le_inf.dev, le_inf.le, le_inf.pe); long int optimal_pe = le_inf.pe + atoi(argv[3]) - le_inf.le; printf("Optimal position for LE %i is at %s:%li\n", atoi(argv[3]), le_inf.dev, optimal_pe); printf("%s:%li is ", le_inf.dev, optimal_pe); if (optimal_pe == pv_info->start_seg) { printf("allocated correctly\n"); } else { struct le_info optimal; optimal = get_PE_allocation(argv[1], pv_info->pv_name, optimal_pe); if (optimal.dev == NULL) printf("after the end of the device\n"); else if (!strcmp(optimal.lv_name, "free")) printf("free\n"); else printf("allocated to %s, LE: %li\n", optimal.lv_name, optimal.le); } pv_info_free(pv_info); le_to_pe_exit(&pp); lvm2_exit(pp.lvm2_handle); return 0; }