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| author | Vadim B. Mikheev <vadim4o@yahoo.com> | 1999-03-28 20:32:42 +0000 |
|---|---|---|
| committer | Vadim B. Mikheev <vadim4o@yahoo.com> | 1999-03-28 20:32:42 +0000 |
| commit | fdf6be80f993d2908f794c0a33aedff479a92813 (patch) | |
| tree | 01e6047f38baeb4124c6c331de8ed81862647353 /src/backend/storage/buffer/bufmgr.c | |
| parent | d4ed17842a44853ce339b80e111ec1bc58691c17 (diff) | |
| download | postgresql-fdf6be80f993d2908f794c0a33aedff479a92813.tar.gz postgresql-fdf6be80f993d2908f794c0a33aedff479a92813.zip | |
1. Vacuum is updated for MVCC.
2. Much faster btree tuples deletion in the case when first on page
index tuple is deleted (no movement to the left page(s)).
3. Remember blkno of new root page in BTPageOpaque of
left/right siblings when root page is splitted.
Diffstat (limited to 'src/backend/storage/buffer/bufmgr.c')
| -rw-r--r-- | src/backend/storage/buffer/bufmgr.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 8d0a299e72c..04c1f4813d2 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.49 1999/02/21 03:49:21 scrappy Exp $ + * $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.50 1999/03/28 20:32:17 vadim Exp $ * *------------------------------------------------------------------------- */ @@ -95,7 +95,7 @@ static BufferDesc *BufferAlloc(Relation reln, BlockNumber blockNum, static int FlushBuffer(Buffer buffer, bool release); static void BufferSync(void); static int BufferReplace(BufferDesc *bufHdr, bool bufferLockHeld); -static void PrintBufferDescs(void); +void PrintBufferDescs(void); /* not static but used by vacuum only ... */ int BlowawayRelationBuffers(Relation rel, BlockNumber block); @@ -1208,23 +1208,24 @@ int BufferPoolCheckLeak() { int i; - int error = 0; + int result = 0; for (i = 1; i <= NBuffers; i++) { if (BufferIsValid(i)) { + BufferDesc *buf = &(BufferDescriptors[i - 1]); + elog(NOTICE, - "buffer leak [%d] detected in BufferPoolCheckLeak()", i - 1); - error = 1; + "Buffer Leak: [%03d] (freeNext=%d, freePrev=%d, \ +relname=%s, blockNum=%d, flags=0x%x, refcount=%d %d)", + i - 1, buf->freeNext, buf->freePrev, + buf->sb_relname, buf->tag.blockNum, buf->flags, + buf->refcount, PrivateRefCount[i - 1]); + result = 1; } } - if (error) - { - PrintBufferDescs(); - return 1; - } - return 0; + return (result); } /* ------------------------------------------------ @@ -1465,7 +1466,7 @@ DropBuffers(Oid dbid) * use only. * ----------------------------------------------------------------- */ -static void +void PrintBufferDescs() { int i; @@ -1474,16 +1475,14 @@ PrintBufferDescs() if (IsUnderPostmaster) { SpinAcquire(BufMgrLock); -#ifdef NOT_USED for (i = 0; i < NBuffers; ++i, ++buf) { - elog(NOTICE, "[%02d] (freeNext=%d, freePrev=%d, relname=%s, \ + elog(DEBUG, "[%02d] (freeNext=%d, freePrev=%d, relname=%s, \ blockNum=%d, flags=0x%x, refcount=%d %d)", i, buf->freeNext, buf->freePrev, buf->sb_relname, buf->tag.blockNum, buf->flags, buf->refcount, PrivateRefCount[i]); } -#endif SpinRelease(BufMgrLock); } else |