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14.1.5.2 Multiple Background I/O Threads Patch from Percona

Oracle gratefully acknowledges the contribution of Percona, Inc. to improve InnoDB performance by implementing configurable background threads, as discussed in Section 14.7.6, “Configuring the Number of Background InnoDB I/O Threads”. InnoDB uses background threads to service various types of I/O requests. The change provides another way to make InnoDB more scalable on high end systems.

Changes from the Percona, Inc. contribution were incorporated in the following source code files: ha_innodb.cc, os0file.c, os0file.h, srv0srv.c, srv0srv.h, and srv0start.c.

This contribution is incorporated subject to the conditions contained in the file COPYING.Percona, which are reproduced here.

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