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Diffstat (limited to 'src/backend/storage/buffer/README')
| -rw-r--r-- | src/backend/storage/buffer/README | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/src/backend/storage/buffer/README b/src/backend/storage/buffer/README index c4a7668533c..dc12c8ca087 100644 --- a/src/backend/storage/buffer/README +++ b/src/backend/storage/buffer/README @@ -267,11 +267,6 @@ only needs to take the lock long enough to read the variable value, not while scanning the buffers. (This is a very substantial improvement in the contention cost of the writer compared to PG 8.0.) -During a checkpoint, the writer's strategy must be to write every dirty -buffer (pinned or not!). We may as well make it start this scan from -nextVictimBuffer, however, so that the first-to-be-written pages are the -ones that backends might otherwise have to write for themselves soon. - The background writer takes shared content lock on a buffer while writing it out (and anyone else who flushes buffer contents to disk must do so too). This ensures that the page image transferred to disk is reasonably consistent. |