1MYSQLDUMPSLOW(1)             MySQL Database System            MYSQLDUMPSLOW(1)
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NAME

6       mysqldumpslow - Summarize slow query log files
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SYNOPSIS

9       mysqldumpslow [options] [log_file ...]
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DESCRIPTION

12       The MySQL slow query log contains information about queries that take a
13       long time to execute (see Section 5.2.5, “The Slow Query Log”).
14       mysqldumpslow parses MySQL slow query log files and prints a summary of
15       their contents.
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17       Normally, mysqldumpslow groups queries that are similar except for the
18       particular values of number and string data values. It “abstracts”
19       these values to N and ´S´ when displaying summary output. The -a and -n
20       options can be used to modify value abstracting behavior.
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22       Invoke mysqldumpslow like this:
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24           shell> mysqldumpslow [options] [log_file ...]
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26       mysqldumpslow supports the following options.
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28       ·   --help
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30           Display a help message and exit.
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32       ·   -a
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34           Do not abstract all numbers to N and strings to ´S´.
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36       ·   --debug, -d
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38           Run in debug mode.
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40       ·   -g pattern
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42           Consider only queries that match the (grep-style) pattern.
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44       ·   -h host_name
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46           Host name of MySQL server for *-slow.log file name. The value can
47           contain a wildcard. The default is * (match all).
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49       ·   -i name
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51           Name of server instance (if using mysql.server startup script).
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53       ·   -l
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55           Do not subtract lock time from total time.
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57       ·   -n N
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59           Abstract numbers with at least N digits within names.
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61       ·   -r
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63           Reverse the sort order.
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65       ·   -s sort_type
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67           How to sort the output. The value of sort_type should be chosen
68           from the following list:
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70           ·   t, at: Sort by query time or average query time
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72           ·   l, al: Sort by lock time or average lock time
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74           ·   r, ar: Sort by rows sent or average rows sent
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76           ·   c: Sort by count
77               By default, mysqldumpslow sorts by average query time
78               (equivalent to -s at).
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80           ·   -t N
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82               Display only the first N queries in the output.
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84           ·   --verbose, -v
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86               Verbose mode. Print more information about what the program
87               does.
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89           Example of usage:
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91               shell> mysqldumpslow
92               Reading mysql slow query log from /usr/local/mysql/data/mysqld51-apple-slow.log
93               Count: 1  Time=4.32s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
94                insert into t2 select * from t1
95               Count: 3  Time=2.53s (7s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
96                insert into t2 select * from t1 limit N
97               Count: 3  Time=2.13s (6s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
98                insert into t1 select * from t1
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101       Copyright © 1997, 2011, Oracle and/or its affiliates. All rights
102       reserved.
103
104       This documentation is free software; you can redistribute it and/or
105       modify it only under the terms of the GNU General Public License as
106       published by the Free Software Foundation; version 2 of the License.
107
108       This documentation is distributed in the hope that it will be useful,
109       but WITHOUT ANY WARRANTY; without even the implied warranty of
110       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
111       General Public License for more details.
112
113       You should have received a copy of the GNU General Public License along
114       with the program; if not, write to the Free Software Foundation, Inc.,
115       51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
116       http://www.gnu.org/licenses/.
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SEE ALSO

120       For more information, please refer to the MySQL Reference Manual, which
121       may already be installed locally and which is also available online at
122       http://dev.mysql.com/doc/.
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AUTHOR

125       Oracle Corporation (http://dev.mysql.com/).
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129MySQL 5.1                         10/26/2011                  MYSQLDUMPSLOW(1)
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