Provided by: mysql-client-5.7_5.7.23-2ubuntu1_amd64 bug


       mysqldumpslow - Summarize slow query log files


       mysqldumpslow [options] [log_file ...]


       The MySQL slow query log contains information about queries that take a long time to
       execute (see Section 5.4.5, “The Slow Query Log”).  mysqldumpslow parses MySQL slow query
       log files and prints a summary of their contents.

       Normally, mysqldumpslow groups queries that are similar except for the particular values
       of number and string data values. It “abstracts” these values to N and 'S' when displaying
       summary output. The -a and -n options can be used to modify value abstracting behavior.

       Invoke mysqldumpslow like this:

           shell> mysqldumpslow [options] [log_file ...]

       mysqldumpslow supports the following options.

       ·   --help

           Display a help message and exit.

       ·   -a

           Do not abstract all numbers to N and strings to 'S'.

       ·   --debug, -d

           Run in debug mode.

       ·   -g pattern

           Consider only queries that match the (grep-style) pattern.

       ·   -h host_name

           Host name of MySQL server for *-slow.log file name. The value can contain a wildcard.
           The default is * (match all).

       ·   -i name

           Name of server instance (if using mysql.server startup script).

       ·   -l

           Do not subtract lock time from total time.

       ·   -n N

           Abstract numbers with at least N digits within names.

       ·   -r

           Reverse the sort order.

       ·   -s sort_type

           How to sort the output. The value of sort_type should be chosen from the following

           ·   t, at: Sort by query time or average query time

           ·   l, al: Sort by lock time or average lock time

           ·   r, ar: Sort by rows sent or average rows sent

           ·   c: Sort by count

           By default, mysqldumpslow sorts by average query time (equivalent to -s at).

       ·   -t N

           Display only the first N queries in the output.

       ·   --verbose, -v

           Verbose mode. Print more information about what the program does.

       Example of usage:

           shell> mysqldumpslow
           Reading mysql slow query log from /usr/local/mysql/data/mysqld51-apple-slow.log
           Count: 1  Time=4.32s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
            insert into t2 select * from t1
           Count: 3  Time=2.53s (7s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
            insert into t2 select * from t1 limit N
           Count: 3  Time=2.13s (6s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
            insert into t1 select * from t1


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       This documentation is free software; you can redistribute it and/or modify it only under
       the terms of the GNU General Public License as published by the Free Software Foundation;
       version 2 of the License.

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       WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE. See the GNU General Public License for more details.

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       Boston, MA 02110-1301 USA or see


       For more information, please refer to the MySQL Reference Manual, which may already be
       installed locally and which is also available online at


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