lp:~vlad-lesin/percona-server/5.1-gca-bug-1038940-table_cache_speed_up

Created by Vlad Lesin on 2013-01-01 and last modified on 2013-01-01
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510. By Vlad Lesin on 2013-01-01

Fix for bug #1038940.

As the number of open tables is increased, table lookup
(testing if a table is already open) and (in particular)
the case when a table is not open, became increasingly more
expensive.

The problem was caused by the open table lookup mechanism,
which was based on traversing a linked list comparing the
file names.

As the list was replaced by a hash table, the lookup
time dropped significantly when used on systems with
a large number of open tables.

The original patch can be found here:
http://lists.mysql.com/commits/121507

509. By <email address hidden> on 2012-12-27

Merge lp:~hrvojem/percona-server/rn-5.1.66-14.2

508. By <email address hidden> on 2012-12-19

Merge lp:~hrvojem/percona-server/bug1057031-5.1

507. By <email address hidden> on 2012-12-19

Merge lp:~stewart/percona-server/5.1-bug1090596

506. By <email address hidden> on 2012-12-18

Merge lp:~vlad-lesin/percona-server/5.1-bug1083377-gca

505. By <email address hidden> on 2012-12-14

Merge lp:~laurynas-biveinis/percona-server/xtradb-multiple-bmp-files-51

504. By <email address hidden> on 2012-12-14

Merge lp:~laurynas-biveinis/percona-server/bug901060-5.1

503. By <email address hidden> on 2012-12-13

Merge lp:~akopytov/percona-server/bug830286-5.1

502. By <email address hidden> on 2012-12-13

Merge lp:~akopytov/percona-server/bug1070856-5.1

501. By <email address hidden> on 2012-12-13

Merge lp:~akopytov/percona-server/bugs-1039536-1081003-5.1

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