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Experimental: move prev_count to the map itself

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:12 +03:00
parent 5afef7ca6d
commit ec8527c89d
3 changed files with 101 additions and 105 deletions
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src/blockstore/blockstore_heap.h
+8 -11
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@@ -44,8 +44,7 @@ struct __attribute__((__packed__)) heap_entry_t
uint64_t inode;
uint64_t stripe;
uint64_t version;
uint64_t prev_pos; // ALWAYS invalid on disk and skipped in checksum calculation
uint32_t prev_count; // ALWAYS invalid on disk and skipped in checksum calculation
uint64_t prev_pos; // ALWAYS invalid on disk and skipped in checksum calculation
// uint8_t[] external_bitmap
// uint8_t[] internal_bitmap
@@ -108,21 +107,21 @@ struct heap_inflight_lsn_t
uint64_t compact_lsn;
};
struct heap_deref_prev_t
{
uint32_t block_num;
object_id oid;
};
struct heap_compact_t
{
uint64_t compact_lsn, compact_version;
uint64_t clean_lsn, clean_version, clean_loc;
};
struct heap_object_ptr_t
{
uint64_t pos;
uint32_t refcnt;
};
using i64hash_t = robin_hood::hash<uint64_t>;
using heap_block_index_t = robin_hood::unordered_flat_map<uint64_t,
robin_hood::unordered_flat_map<inode_t, robin_hood::unordered_flat_map<uint64_t, uint64_t, i64hash_t, std::equal_to<uint64_t>, 88>, i64hash_t>, i64hash_t>;
robin_hood::unordered_flat_map<inode_t, robin_hood::unordered_flat_map<uint64_t, heap_object_ptr_t, i64hash_t, std::equal_to<uint64_t>, 88>, i64hash_t>, i64hash_t>;
using heap_mvcc_map_t = robin_hood::unordered_flat_map<object_id, heap_object_mvcc_t>;
class blockstore_heap_t
@@ -160,8 +159,6 @@ class blockstore_heap_t
uint64_t completed_lsn = 0;
uint64_t fsynced_lsn = 0;
std::deque<object_id> compact_queue;
std::vector<heap_deref_prev_t> deref_prev;
robin_hood::unordered_flat_set<object_id> deref_deletes;
bool marked_used_blocks = false;
bool recheck_queue_filled = false;