diff options
Diffstat (limited to 'storage/innodb_plugin/buf/buf0buf.c')
| -rw-r--r-- | storage/innodb_plugin/buf/buf0buf.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/storage/innodb_plugin/buf/buf0buf.c b/storage/innodb_plugin/buf/buf0buf.c index 660686bac1e..65d4311b840 100644 --- a/storage/innodb_plugin/buf/buf0buf.c +++ b/storage/innodb_plugin/buf/buf0buf.c @@ -2286,6 +2286,30 @@ wait_until_unfixed: bytes. */ UNIV_MEM_ASSERT_RW(&block->page, sizeof block->page); #endif +#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG + if (mode == BUF_GET_IF_IN_POOL && ibuf_debug) { + /* Try to evict the block from the buffer pool, to use the + insert buffer as much as possible. */ + + if (buf_LRU_free_block(&block->page, TRUE, NULL) + == BUF_LRU_FREED) { + buf_pool_mutex_exit(); + mutex_exit(&block->mutex); + fprintf(stderr, + "innodb_change_buffering_debug evict %u %u\n", + (unsigned) space, (unsigned) offset); + return(NULL); + } else if (buf_flush_page_try(block)) { + fprintf(stderr, + "innodb_change_buffering_debug flush %u %u\n", + (unsigned) space, (unsigned) offset); + guess = block; + goto loop; + } + + /* Failed to evict the page; change it directly */ + } +#endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */ buf_block_buf_fix_inc(block, file, line); |