1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* statistics.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "highlevel.h"
#include <stdio.h>
void sqfs_print_statistics(fstree_t *fs, sqfs_super_t *super)
{
size_t blocks_written = 0, duplicate_blocks = 0, sparse_blocks = 0;
size_t ratio, file_count = 0, file_dup_count = 0;
size_t frag_count = 0, frag_dup = 0;
size_t i, num_blocks, sparse;
uint64_t output_bytes = 0;
uint64_t input_bytes = 0;
file_info_t *fi;
bool is_dupe;
for (fi = fs->files; fi != NULL; fi = fi->next) {
num_blocks = fi->size / fs->block_size;
is_dupe = true;
if ((fi->size % fs->block_size) &&
!(fi->flags & FILE_FLAG_HAS_FRAGMENT)) {
++num_blocks;
}
for (sparse = 0, i = 0; i < num_blocks; ++i) {
if (fi->blocks[i].size == 0)
sparse += 1;
}
if (num_blocks > sparse) {
if (fi->flags & FILE_FLAG_BLOCKS_ARE_DUPLICATE) {
duplicate_blocks += num_blocks - sparse;
} else {
blocks_written += num_blocks - sparse;
is_dupe = false;
}
}
if (fi->flags & FILE_FLAG_HAS_FRAGMENT) {
if (fi->flags & FILE_FLAG_FRAGMENT_IS_DUPLICATE) {
frag_dup += 1;
} else {
frag_count += 1;
is_dupe = false;
}
}
if (is_dupe)
file_dup_count += 1;
sparse_blocks += sparse;
file_count += 1;
input_bytes += fi->size;
}
if (input_bytes > 0) {
output_bytes = super->inode_table_start - sizeof(*super);
ratio = (100 * output_bytes) / input_bytes;
} else {
ratio = 100;
}
fputs("---------------------------------------------------\n", stdout);
printf("Input files processed: %zu\n", file_count);
printf("Files that were complete duplicates: %zu\n", file_dup_count);
printf("Data blocks actually written: %zu\n", blocks_written);
printf("Fragment blocks written: %u\n", super->fragment_entry_count);
printf("Duplicate data blocks omitted: %zu\n", duplicate_blocks);
printf("Sparse blocks omitted: %zu\n", sparse_blocks);
printf("Fragments actually written: %zu\n", frag_count);
printf("Duplicated fragments omitted: %zu\n", frag_dup);
printf("Total number of inodes: %u\n", super->inode_count);
printf("Number of unique group/user IDs: %u\n", super->id_count);
printf("Data compression ratio: %zu%%\n", ratio);
}
|
