Buffer manager modifications to keep a local buffer-dirtied bit as well

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as a shared dirtybit for each shared buffer.  The shared dirtybit still
controls writing the buffer, but the local bit controls whether we need
to fsync the buffer's file.  This arrangement fixes a bug that allowed
some required fsyncs to be missed, and should improve performance as well.
For more info see my post of same date on pghackers.

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This commit is contained in:

Tom Lane

2000-04-09 04:43:20 +00:00

parent 9c38a8d296

commit 1f6d8b90b8

13 changed files with 955 additions and 435 deletions

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608

src/backend/storage/buffer/bufmgr.c

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