Innobase Oy gratefully acknowledges the contribution of Percona, Inc. to improve InnoDB performance by implementing configurable background threads, as discussed in Section 7.8, “Multiple Background 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.
Copyright (c) 2008, 2009, Percona Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials
provided with the distribution.
* Neither the name of the Percona Inc. nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
“AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
This is the User’s Guide for InnoDB Plugin 1.0.6 for MySQL 5.1, generated on March 4, 2010 (rev 673:680M).