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Aikesheng Open Source Community
Aikesheng Open Source Community
Feb 28, 2020 · Databases

How Many Disk Flushes Occur for a Single MySQL INSERT?

An experiment using pt‑tools shows that a single MySQL INSERT triggers three fsync operations on the redo log and one fdatasync on the binlog, while highlighting that flush behavior can vary due to multiple internal mechanisms.

INSERTMySQLbinlog
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How Many Disk Flushes Occur for a Single MySQL INSERT?