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| author | heikki@donna.mysql.fi <> | 2001-11-17 13:48:39 +0200 |
|---|---|---|
| committer | heikki@donna.mysql.fi <> | 2001-11-17 13:48:39 +0200 |
| commit | 086fe412948897b03832b288c84e4b0a49ce7820 (patch) | |
| tree | 787da1602ab19957328ec16ef6c00f2594a8fc67 /innobase/buf | |
| parent | 3ed8188bfbf3cc8cf652ec53bb1c486c531d16e8 (diff) | |
| download | mariadb-git-086fe412948897b03832b288c84e4b0a49ce7820.tar.gz | |
btr0cur.c, btr0btr.c, dict0dict.h, dict0dict.c:
Fix a bug in insert buffer B-tree upper levels; probably caused the crash by B.Fitzpatrick
buf0flu.c:
Fix a bug in previous change
A small optimization for LRU flushes to avoid losing hot pages from the buffer pool
Diffstat (limited to 'innobase/buf')
| -rw-r--r-- | innobase/buf/buf0flu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/innobase/buf/buf0flu.c b/innobase/buf/buf0flu.c index cfa814bcb05..8184f10d6e9 100644 --- a/innobase/buf/buf0flu.c +++ b/innobase/buf/buf0flu.c @@ -556,6 +556,15 @@ buf_flush_try_neighbors( block = buf_page_hash_get(space, i); + if (block && flush_type == BUF_FLUSH_LRU && i != offset + && !block->old) { + + /* We avoid flushing 'non-old' blocks in an LRU flush, + because the flushed blocks are soon freed */ + + continue; + } + if (block && buf_flush_ready_for_flush(block, flush_type)) { mutex_exit(&(buf_pool->mutex)); |