Default page

Your IP: 216.73.216.124
Server IP: 50.28.103.30
Server: Linux host.jcukjv-lwsites.com 4.18.0-553.22.1.el8_10.x86_64 #1 SMP Tue Sep 24 05:16:59 EDT 2024 x86_64
Server Software: nginx/1.28.0
PHP Version: 8.3.12
Buat File | Buat Folder

Dir : ~/www/server/mysql/mysql-test/suite/perfschema/t/

Edit File: one_thread_per_con.test

# Tests for PERFORMANCE_SCHEMA

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

# Setup

--source ../include/setup_helper.inc

# We use a myisam table here because CREATE TABLE has a known,
# stable behavior (it will lock THR_LOCK_myisam once).
# The point is not to test myisam, but to test that each
# connection is properly instrumented, with one-thread-per-connection

update performance_schema.setup_instruments set enabled='YES'
  where name like "wait/synch/mutex/mysys/THR_LOCK_myisam";

--disable_warnings
drop table if exists test.t1;
drop table if exists test.t2;
drop table if exists test.t3;
--enable_warnings

truncate table performance_schema.events_waits_history_long;

show global variables like "thread_handling";

# Code to test

connection con1;

-- echo "----------------- Connection 1"
create table test.t1(a int) engine=MYISAM;

connection con2;

-- echo "----------------- Connection 2"
create table test.t2(a int) engine=MYISAM;

connection con3;

-- echo "----------------- Connection 3"
create table test.t3(a int) engine=MYISAM;

# Verification

connection default;

-- echo "----------------- Connection default"

--disable_query_log
eval set @tid= $con1_THREAD_ID;
--enable_query_log

execute stmt_dump_events using @tid;
execute stmt_dump_thread using @tid;

--disable_query_log
eval set @tid= $con2_THREAD_ID;
--enable_query_log

execute stmt_dump_events using @tid;
execute stmt_dump_thread using @tid;

--disable_query_log
eval set @tid= $con3_THREAD_ID;
--enable_query_log

execute stmt_dump_events using @tid;
execute stmt_dump_thread using @tid;

# Cleanup

drop table test.t1;
drop table test.t2;
drop table test.t3;

--source ../include/cleanup_helper.inc