Release 10.1A: OpenEdge Getting Started:
Database Essentials

> ## Monitoring buffers flushed at checkpoint

> Buffers flushed at checkpoint are a good indicator of APW and checkpoint efficiency. The APW’s job is to keep writable buffers at a low count. Also, you do not want frequent checkpoints where the database and memory are synchronized. If you are seeing an increase in buffers flushed during your prime operating times and they cannot be attributed to an online backup, then you should make adjustments.

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