quick-test.c

   1 /*
   2  * Copyright (C) 2007 Oracle.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public
   6  * License v2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public
  14  * License along with this program; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 021110-1307, USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <fcntl.h>
  22 #include "kerncompat.h"
  23 #include "radix-tree.h"
  24 #include "ctree.h"
  25 #include "disk-io.h"
  26 #include "print-tree.h"
  27 #include "transaction.h"
  28
  29 /* for testing only */
  30 int next_key(int i, int max_key) {
  31         return rand() % max_key;
  32         // return i;
  33 }
  34
  35 int main(int ac, char **av) {
  36         struct btrfs_key ins;
  37         struct btrfs_key last = { (u64)-1, 0, 0};
  38         char *buf;
  39         int i;
  40         int num;
  41         int ret;
  42         int run_size = 300000;
  43         int max_key =  100000000;
  44         int tree_size = 2;
  45         struct btrfs_path path;
  46         struct btrfs_root *root;
  47         struct btrfs_trans_handle *trans;
  48
  49         buf = malloc(512);
  50         memset(buf, 0, 512);
  51
  52         radix_tree_init();
  53
  54         root = open_ctree(av[1], BTRFS_SUPER_INFO_OFFSET, O_RDWR);
  55         trans = btrfs_start_transaction(root, 1);
  56         srand(55);
  57         btrfs_set_key_type(&ins, BTRFS_STRING_ITEM_KEY);
  58         for (i = 0; i < run_size; i++) {
  59                 num = next_key(i, max_key);
  60                 // num = i;
  61                 sprintf(buf, "string-%d", num);
  62                 if (i % 10000 == 0)
  63                         fprintf(stderr, "insert %d:%d\n", num, i);
  64                 ins.objectid = num;
  65                 ins.offset = 0;
  66                 ret = btrfs_insert_item(trans, root, &ins, buf, 512);
  67                 if (!ret)
  68                         tree_size++;
  69                 if (i == run_size - 5) {
  70                         btrfs_commit_transaction(trans, root);
  71                         trans = btrfs_start_transaction(root, 1);
  72                 }
  73         }
  74         btrfs_commit_transaction(trans, root);
  75         close_ctree(root);
  76         exit(1);
  77         root = open_ctree(av[1], BTRFS_SUPER_INFO_OFFSET, O_RDWR);
  78         printf("starting search\n");
  79         srand(55);
  80         for (i = 0; i < run_size; i++) {
  81                 num = next_key(i, max_key);
  82                 ins.objectid = num;
  83                 btrfs_init_path(&path);
  84                 if (i % 10000 == 0)
  85                         fprintf(stderr, "search %d:%d\n", num, i);
  86                 ret = btrfs_search_slot(NULL, root, &ins, &path, 0, 0);
  87                 if (ret) {
  88                         btrfs_print_tree(root, root->node, 1);
  89                         printf("unable to find %d\n", num);
  90                         exit(1);
  91                 }
  92                 btrfs_release_path(root, &path);
  93         }
  94         close_ctree(root);
  95
  96         root = open_ctree(av[1], BTRFS_SUPER_INFO_OFFSET, O_RDWR);
  97         printf("node %p level %d total ptrs %d free spc %lu\n", root->node,
  98                 btrfs_header_level(root->node),
  99                 btrfs_header_nritems(root->node),
 100                 (unsigned long)BTRFS_NODEPTRS_PER_BLOCK(root) -
 101                 btrfs_header_nritems(root->node));
 102         printf("all searches good, deleting some items\n");
 103         i = 0;
 104         srand(55);
 105         trans = btrfs_start_transaction(root, 1);
 106         for (i = 0 ; i < run_size/4; i++) {
 107                 num = next_key(i, max_key);
 108                 ins.objectid = num;
 109                 btrfs_init_path(&path);
 110                 ret = btrfs_search_slot(trans, root, &ins, &path, -1, 1);
 111                 if (!ret) {
 112                         if (i % 10000 == 0)
 113                                 fprintf(stderr, "del %d:%d\n", num, i);
 114                         ret = btrfs_del_item(trans, root, &path);
 115                         if (ret != 0)
 116                                 BUG();
 117                         tree_size--;
 118                 }
 119                 btrfs_release_path(root, &path);
 120         }
 121         btrfs_commit_transaction(trans, root);
 122         close_ctree(root);
 123
 124         root = open_ctree(av[1], BTRFS_SUPER_INFO_OFFSET, O_RDWR);
 125         trans = btrfs_start_transaction(root, 1);
 126         srand(128);
 127         for (i = 0; i < run_size; i++) {
 128                 num = next_key(i, max_key);
 129                 sprintf(buf, "string-%d", num);
 130                 ins.objectid = num;
 131                 if (i % 10000 == 0)
 132                         fprintf(stderr, "insert %d:%d\n", num, i);
 133                 ret = btrfs_insert_item(trans, root, &ins, buf, 512);
 134                 if (!ret)
 135                         tree_size++;
 136         }
 137         btrfs_commit_transaction(trans, root);
 138         close_ctree(root);
 139
 140         root = open_ctree(av[1], BTRFS_SUPER_INFO_OFFSET, O_RDWR);
 141         srand(128);
 142         printf("starting search2\n");
 143         for (i = 0; i < run_size; i++) {
 144                 num = next_key(i, max_key);
 145                 ins.objectid = num;
 146                 btrfs_init_path(&path);
 147                 if (i % 10000 == 0)
 148                         fprintf(stderr, "search %d:%d\n", num, i);
 149                 ret = btrfs_search_slot(NULL, root, &ins, &path, 0, 0);
 150                 if (ret) {
 151                         btrfs_print_tree(root, root->node, 1);
 152                         printf("unable to find %d\n", num);
 153                         exit(1);
 154                 }
 155                 btrfs_release_path(root, &path);
 156         }
 157         printf("starting big long delete run\n");
 158         trans = btrfs_start_transaction(root, 1);
 159         while(root->node && btrfs_header_nritems(root->node) > 0) {
 160                 struct extent_buffer *leaf;
 161                 int slot;
 162                 ins.objectid = (u64)-1;
 163                 btrfs_init_path(&path);
 164                 ret = btrfs_search_slot(trans, root, &ins, &path, -1, 1);
 165                 if (ret == 0)
 166                         BUG();
 167
 168                 leaf = path.nodes[0];
 169                 slot = path.slots[0];
 170                 if (slot != btrfs_header_nritems(leaf))
 171                         BUG();
 172                 while(path.slots[0] > 0) {
 173                         path.slots[0] -= 1;
 174                         slot = path.slots[0];
 175                         leaf = path.nodes[0];
 176
 177                         btrfs_item_key_to_cpu(leaf, &last, slot);
 178
 179                         if (tree_size % 10000 == 0)
 180                                 printf("big del %d:%d\n", tree_size, i);
 181                         ret = btrfs_del_item(trans, root, &path);
 182                         if (ret != 0) {
 183                                 printf("del_item returned %d\n", ret);
 184                                 BUG();
 185                         }
 186                         tree_size--;
 187                 }
 188                 btrfs_release_path(root, &path);
 189         }
 190         /*
 191         printf("previous tree:\n");
 192         btrfs_print_tree(root, root->commit_root);
 193         printf("map before commit\n");
 194         btrfs_print_tree(root->extent_root, root->extent_root->node);
 195         */
 196         btrfs_commit_transaction(trans, root);
 197         printf("tree size is now %d\n", tree_size);
 198         printf("root %p commit root %p\n", root->node, root->commit_root);
 199         btrfs_print_tree(root, root->node, 1);
 200         close_ctree(root);
 201         return 0;
 202 }