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feat(metadata_v2): dump more details in frozen metadata breakdown

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This commit is contained in:
Marcus Holland-Moritz 2025-05-12 11:44:24 +02:00
parent eb401acea4
commit 5b095bbf69
1 changed files with 75 additions and 22 deletions
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97
src/reader/internal/metadata_v2.cpp
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@ -262,6 +262,22 @@ void analyze_frozen(std::ostream& os,
}
};
using detail_bits_t = std::pair<std::string_view, size_t>;
auto summarize_details = [&](std::string_view name, size_t count, size_t size,
std::span<detail_bits_t> details) {
std::ranges::stable_sort(details, ranges::greater{},
&detail_bits_t::second);
auto fmt = fmt_size(name, count, size);
for (size_t i = 0; i < details.size(); ++i) {
auto [member, bits] = details[i];
auto tree = i == details.size() - 1 ? "'" : "|";
fmt += fmt_detail_pct(fmt::format("{}- {} [{}]", tree, member, bits),
count, (count * bits + 7) / 8);
}
usage.emplace_back(size, fmt);
};
#define META_LIST_SIZE(x) add_list_size(#x, meta.x(), l.x##Field)
#define META_STRING_LIST_SIZE(x) add_string_list_size(#x, meta.x(), l.x##Field)
@ -289,6 +305,10 @@ void analyze_frozen(std::ostream& os,
} \
} while (0)
#define META_LIST_SIZE_DETAIL_BEGIN \
do { \
std::vector<detail_bits_t> detail_bits;
#define META_ADD_DETAIL_BITS(field, x) \
do { \
if (auto bits = \
@ -298,32 +318,61 @@ void analyze_frozen(std::ostream& os,
} \
} while (0)
META_LIST_SIZE(chunks);
META_LIST_SIZE(directories);
#define META_LIST_SIZE_DETAIL_END(x) \
summarize_details(#x, meta.x().size(), list_size(meta.x(), l.x##Field), \
detail_bits); \
} \
while (0)
{
std::vector<std::pair<std::string_view, size_t>> detail_bits;
#define META_OPT_LIST_SIZE_DETAIL_BEGIN(x) \
do { \
if (auto list = meta.x()) { \
std::vector<detail_bits_t> detail_bits;
META_ADD_DETAIL_BITS(inodes, mode_index);
META_ADD_DETAIL_BITS(inodes, owner_index);
META_ADD_DETAIL_BITS(inodes, group_index);
META_ADD_DETAIL_BITS(inodes, atime_offset);
META_ADD_DETAIL_BITS(inodes, mtime_offset);
META_ADD_DETAIL_BITS(inodes, ctime_offset);
#define META_OPT_ADD_DETAIL_BITS(field, x) \
do { \
if (auto bits = l.field##Field.layout.valueField.layout.itemField.layout \
.x##Field.layout.bits; \
bits > 0) { \
detail_bits.emplace_back(#x, bits); \
} \
} while (0)
auto count = meta.inodes().size();
auto size = list_size(meta.inodes(), l.inodesField);
auto fmt = fmt_size("inodes", count, size);
#define META_OPT_LIST_SIZE_DETAIL_END(x) \
summarize_details(#x, list->size(), \
list_size(*list, l.x##Field.layout.valueField), \
detail_bits); \
} \
} \
while (0)
for (size_t i = 0; i < detail_bits.size(); ++i) {
auto [name, bits] = detail_bits[i];
auto tree = i == detail_bits.size() - 1 ? "'" : "|";
fmt += fmt_detail_pct(fmt::format("{}- {}", tree, name), count,
(count * bits + 7) / 8);
}
META_LIST_SIZE_DETAIL_BEGIN;
META_ADD_DETAIL_BITS(chunks, block);
META_ADD_DETAIL_BITS(chunks, offset);
META_ADD_DETAIL_BITS(chunks, size);
META_LIST_SIZE_DETAIL_END(chunks);
usage.emplace_back(size, fmt);
}
META_LIST_SIZE_DETAIL_BEGIN;
META_ADD_DETAIL_BITS(directories, parent_entry);
META_ADD_DETAIL_BITS(directories, first_entry);
META_ADD_DETAIL_BITS(directories, self_entry);
META_LIST_SIZE_DETAIL_END(directories);
META_LIST_SIZE_DETAIL_BEGIN;
META_ADD_DETAIL_BITS(inodes, mode_index);
META_ADD_DETAIL_BITS(inodes, owner_index);
META_ADD_DETAIL_BITS(inodes, group_index);
META_ADD_DETAIL_BITS(inodes, atime_offset);
META_ADD_DETAIL_BITS(inodes, mtime_offset);
META_ADD_DETAIL_BITS(inodes, ctime_offset);
META_ADD_DETAIL_BITS(inodes, name_index_v2_2);
META_ADD_DETAIL_BITS(inodes, inode_v2_2);
META_LIST_SIZE_DETAIL_END(inodes);
META_OPT_LIST_SIZE_DETAIL_BEGIN(dir_entries);
META_OPT_ADD_DETAIL_BITS(dir_entries, name_index);
META_OPT_ADD_DETAIL_BITS(dir_entries, inode_num);
META_OPT_LIST_SIZE_DETAIL_END(dir_entries);
META_LIST_SIZE(chunk_table);
if (!meta.entry_table_v2_2().empty()) {
@ -336,7 +385,6 @@ void analyze_frozen(std::ostream& os,
META_LIST_SIZE(modes);
META_OPT_LIST_SIZE(devices);
META_OPT_LIST_SIZE(dir_entries);
META_OPT_LIST_SIZE(shared_files_table);
META_OPT_STRING_TABLE_SIZE(compact_names);
@ -356,7 +404,12 @@ void analyze_frozen(std::ostream& os,
#undef META_STRING_LIST_SIZE
#undef META_OPT_LIST_SIZE
#undef META_OPT_STRING_TABLE_SIZE
#undef META_LIST_SIZE_DETAIL_BEGIN
#undef META_ADD_DETAIL_BITS
#undef META_LIST_SIZE_DETAIL_END
#undef META_OPT_LIST_SIZE_DETAIL_BEGIN
#undef META_OPT_ADD_DETAIL_BITS
#undef META_OPT_LIST_SIZE_DETAIL_END
if (auto cache = meta.reg_file_size_cache()) {
add_list_size(