MySQL 5.5的innodb_purge_threads怎么使用

這篇文章主要講解了“MySQL 5.5的innodb_purge_threads怎么使用”，文中的講解內(nèi)容簡(jiǎn)單清晰，易于學(xué)習(xí)與理解，下面請(qǐng)大家跟著小編的思路慢慢深入，一起來(lái)研究和學(xué)習(xí)“MySQL 5.5的innodb_purge_threads怎么使用”吧！

在之前版本，碎片回收操作是主線程的一部分，這經(jīng)定期調(diào)度的方式運(yùn)行，但會(huì)阻塞數(shù)據(jù)庫(kù)的其他操作；到5.5以后，可以將這個(gè)線程獨(dú)立出來(lái) ；方法：innodb_purge_threads =1
這個(gè)應(yīng)該能讓碎片回收得更及時(shí)而且不影響其他線程的操作；
Improved Purge Scheduling
 - The InnoDB purge operation is a type of garbage collection that runs
periodically. In previous versions, the purge was part of the master thread, meaning that it could
block other database operations when running. In MySQL 5.5 this operation can run in its own
thread, allowing for more concurrency. Users can control whether the purge operation is split into its
own thread with the innodb_purge_threads configuration option, which can be set to 0 (the
default) or 1 (for a single separate purge thread).

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