AnonSec Shell
Server IP : 185.86.78.101  /  Your IP : 216.73.216.124
Web Server : Apache
System : Linux 675867-vds-valikoshka1996.gmhost.pp.ua 5.4.0-150-generic #167-Ubuntu SMP Mon May 15 17:35:05 UTC 2023 x86_64
User : www ( 1000)
PHP Version : 7.4.33
Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : OFF  |  Sudo : ON  |  Pkexec : OFF
Directory :  /www/server/mysql/mysql-test/t/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ HOME ]     

Current File : /www/server/mysql/mysql-test/t/bug12427262.test
--echo #
--echo # Bug#12427262 : 60961: SHOW TABLES VERY SLOW WHEN NOT IN SYSTEM DISK CACHE. 
--echo #

--source include/not_embedded.inc
--source include/have_perfschema.inc

--disable_warnings
create database show_table_lw_db;
use show_table_lw_db;
create table t1 (c1 int);
create table t2 (c1 int);
create table t3 (c1 int);
create table t4 (c1 int);
create table t5 (c1 int);
create table t6 (c1 int);
create table t7 (c1 int);
create table t8 (c1 int);
create table t9 (c1 int);
create table t10 (c1 int);
--enable_warnings

--echo # Query PS to know initial read count for frm file.
select Sum(ALL(COUNT_READ)) from performance_schema.file_summary_by_instance where FILE_NAME 
like "%show_table_lw_db%" AND FILE_NAME like "%.frm%" AND EVENT_NAME='wait/io/file/sql/FRM'
into @count_read_before;

show tables;

--echo # Query PS to know read count for frm file after above query. It should
--echo # not be changed as FRM file will not be opened for above query.
select Sum(ALL(COUNT_READ)) from performance_schema.file_summary_by_instance where FILE_NAME 
like "%show_table_lw_db%" AND FILE_NAME like "%.frm%" AND EVENT_NAME='wait/io/file/sql/FRM'
into @count_read_after;

select @count_read_after-@count_read_before;

show full tables;

--echo # Query PS to know read count for frm file after above query. COUNT_READ
--echo # will be incremented by 1 as FRM file will be opened for above query.
select Sum(ALL(COUNT_READ)) from performance_schema.file_summary_by_instance where FILE_NAME 
like "%show_table_lw_db%" AND FILE_NAME like "%.frm%" AND EVENT_NAME='wait/io/file/sql/FRM'
into @count_read_after;

select @count_read_after-@count_read_before;

--disable_warnings
drop table t1;
drop database show_table_lw_db;
--enable_warnings

Anon7 - 2022
AnonSec Team