pt-ioprofile 属于Percona Toolkit 下的一个工具
下载地址：https://www.percona.com/software/database-tools/percona-toolkit
简单看一下使用说明
pt-ioprofile --help
Usage: pt-ioprofile [OPTIONS] [FILE]
For more information, 'man pt-ioprofile' or 'perldoc /usr/local/bin/pt-ioprofile'.
Command line options:
--aggregate The aggregate function, either C<sum> or C<avg>.
--cell The cell contents.
--group-by The group-by item.
--help Print help and exit.
--profile-pid The PID to profile, overrides L<"--profile-process">.
--profile-process The process name to profile.
--run-time How long to profile.
--save-samples Filename to save samples in; these can be used for later
analysis.
--version Print the tool's version and exit.
Options and values after processing arguments:
--aggregate sum
--cell times
--group-by filename
--help TRUE
--profile-pid (No value)
--profile-process mysqld
--run-time 30
--save-samples (No value)
--version FALSE