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mdbx: предотвращение бесполезных page-faults в режиме MDBX_WRITEMAP (опция сборки MDBX_ENABLE_PREFAULT).

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Леонид Юрьев (Leonid Yuriev)
2022-12-04 20:04:13 +03:00
parent dc27d5d30a
commit be3ff92772
4 changed files with 82 additions and 13 deletions
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21
mdbx.h
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@@ -2583,16 +2583,17 @@ struct MDBX_envinfo {
* first process opened the database after everyone had previously closed it).
*/
struct {
uint64_t newly; /**< Quantity of a new pages added */
uint64_t cow; /**< Quantity of pages copied for update */
uint64_t clone; /**< Quantity of parent's dirty pages clones
for nested transactions */
uint64_t split; /**< Page splits */
uint64_t merge; /**< Page merges */
uint64_t spill; /**< Quantity of spilled dirty pages */
uint64_t unspill; /**< Quantity of unspilled/reloaded pages */
uint64_t wops; /**< Number of explicit write operations (not a pages)
to a disk */
uint64_t newly; /**< Quantity of a new pages added */
uint64_t cow; /**< Quantity of pages copied for update */
uint64_t clone; /**< Quantity of parent's dirty pages clones
for nested transactions */
uint64_t split; /**< Page splits */
uint64_t merge; /**< Page merges */
uint64_t spill; /**< Quantity of spilled dirty pages */
uint64_t unspill; /**< Quantity of unspilled/reloaded pages */
uint64_t wops; /**< Number of explicit write operations (not a pages)
to a disk */
uint64_t prefault; /**< Number of prefault write operations (not a pages) */
uint64_t
msync; /**< Number of explicit msync-to-disk operations (not a pages) */
uint64_t