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mdbx: support for huge transactions (MDBX_HUGE_TRANSACTIONS option).

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Change-Id: I5d6cce6a7fb816add8cb4c066cc50f31cdebf9d5
This commit is contained in:
Leonid Yuriev
2020-06-04 20:09:02 +03:00
parent fdc92b136f
commit e008f3132d
5 changed files with 31 additions and 14 deletions
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9
src/internals.h
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@@ -647,9 +647,16 @@ typedef MDBX_DP *MDBX_DPL;
#define MDBX_PNL_GRANULATE 1024
#define MDBX_PNL_INITIAL \
(MDBX_PNL_GRANULATE - 2 - MDBX_ASSUME_MALLOC_OVERHEAD / sizeof(pgno_t))
#if MDBX_HUGE_TRANSACTIONS
#define MDBX_PNL_MAX \
((1u << 26) - 2 - MDBX_ASSUME_MALLOC_OVERHEAD / sizeof(pgno_t))
#define MDBX_DPL_TXNFULL (MDBX_PNL_MAX / 2)
#else
#define MDBX_PNL_MAX \
((1u << 24) - 2 - MDBX_ASSUME_MALLOC_OVERHEAD / sizeof(pgno_t))
#define MDBX_DPL_TXNFULL (MDBX_PNL_MAX / 4)
#endif /* MDBX_HUGE_TRANSACTIONS */
#define MDBX_TXL_GRANULATE 32
#define MDBX_TXL_INITIAL \
@@ -925,7 +932,7 @@ struct MDBX_env {
MDBX_page *me_dpages; /* list of malloc'd blocks for re-use */
/* PNL of pages that became unused in a write txn */
MDBX_PNL me_retired_pages;
/* MDBX_DP of pages written during a write txn. Length MDBX_DPL_TXNFULL. */
/* MDBX_DP of pages written during a write txn. */
MDBX_DPL me_dirtylist;
/* Number of freelist items that can fit in a single overflow page */
unsigned me_maxgc_ov1page;