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Use a sequence of bitmap_allocs for metadata instead of std::sets...

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:12 +03:00
parent 2c6ea8a521
commit 954e7b658d
2 changed files with 32 additions and 48 deletions
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src/blockstore/blockstore_heap.h
+2 -13
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@@ -96,17 +96,6 @@ struct __attribute__((__packed__)) heap_block_info_t
uint8_t *data = NULL;
};
struct __attribute__((__packed__)) heap_block_free_t
{
uint32_t block_num = 0;
uint32_t free_space = 0;
};
inline bool operator < (const heap_block_free_t & a, const heap_block_free_t & b)
{
return a.free_space > b.free_space || a.free_space == b.free_space && a.block_num < b.block_num;
}
struct multilist_alloc_t
{
const uint32_t count, maxn;
@@ -138,6 +127,7 @@ class blockstore_heap_t
const uint32_t meta_block_count = 0;
uint32_t target_block_free_space = 800;
const int meta_alloc_buckets = 4;
uint64_t next_lsn = 0;
uint64_t compacted_lsn = 0;
@@ -147,11 +137,10 @@ class blockstore_heap_t
std::deque<object_id> compact_queue;
std::vector<heap_block_info_t> block_info;
allocator_t *data_alloc = NULL;
allocator_t *meta_alloc = NULL;
allocator_t *meta_allocs[4] = {};
uint32_t meta_alloc_count = 0;
uint64_t meta_used_space = 0;
multilist_alloc_t *buffer_alloc = NULL;
std::set<heap_block_free_t> used_alloc_queue;
std::map<heap_object_lsn_t, heap_object_mvcc_t> object_mvcc;
std::map<uint64_t, uint32_t> mvcc_data_refs;
std::map<uint64_t, uint32_t> mvcc_buffer_refs;