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ef6f561a9e
Reduce ibuf_mutex and ibuf_pessimistic_insert_mutex contention further. Protect ibuf->empty by the insert buffer root page latch, not ibuf_mutex. ibuf_tree_root_get(): Assert that ibuf_mutex is owned by the caller. Assert that the stamped page number is correct. Assert that ibuf->empty agrees with the root page. ibuf_size_update(): Do not update ibuf->empty. ibuf_init_at_db_start(): Update ibuf->empty while holding the root page latch. ibuf_add_free_page(): Return TRUE/FALSE instead of DB_SUCCESS/DB_STRONG_FAIL. ibuf_remove_free_page(): Release ibuf_pessimistic_insert_mutex as early as possible. ibuf_contract_ext(): Rely on a dirty read of ibuf->empty, unless the server is being shut down. Never acquire ibuf_mutex. Eliminate n_stored. ibuf_contract_after_insert(): Never acquire ibuf_mutex. Perform dirty reads of ibuf->size and ibuf->max_size. ibuf_insert_low(): Only acquire ibuf_mutex for mode==BTR_MODIFY_TREE. Perform dirty reads of ibuf->size and ibuf->max_size. Update ibuf->empty while holding the root page latch. ibuf_delete_rec(): Update ibuf->empty while holding the root page latch. ibuf_is_empty(): Release ibuf_mutex earlier. |
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| archive | ||
| blackhole | ||
| csv | ||
| example | ||
| federated | ||
| heap | ||
| ibmdb2i | ||
| innobase | ||
| myisam | ||
| myisammrg | ||
| ndb | ||
| perfschema | ||
| Makefile.am | ||