Mysql

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: mysql
  name: mysql
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: mysql
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
      labels:
        app: mysql
    spec:
      containers:
      - env:
        - name: MYSQL_ROOT_PASSWORD
          value: xxx
        image: mysql:8.0.33
        imagePullPolicy: IfNotPresent
        name: mysql
        ports:
        - containerPort: 3306
          name: mysql
          protocol: TCP
        resources:
          limits:
            cpu: "4"
            memory: 8Gi
        volumeMounts:
        - mountPath: /var/lib/mysql
          name: data
        - mountPath: /etc/mysql/conf.d/
          name: mysql-config
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: mysql
      - configMap:
          defaultMode: 420
          name: mysql-config
        name: mysql-config

---

apiVersion: v1
kind: ConfigMap
data:
  my.cnf: |-
    [client]
    default-character-set = utf8mb4
    [mysql]
    default-character-set=utf8mb4
    [mysqld]
    character-set-server=utf8mb4
    collation_server=utf8mb4_unicode_ci
    gtid_mode=ON
    enforce_gtid_consistency=ON
    lower_case_table_names=1
    open_files_limit=65535
    slow_query_log = ON
    long_query_time = 2
    max_heap_table_size = 32M
    tmp_table_size = 2M
    log-bin = mysql-bin
    binlog_cache_size = 32K
    max_binlog_cache_size = 1G
    max_binlog_size = 1G
    binlog-format = ROW
    sync_binlog = 1
    log-slave-updates = 1
    expire_logs_days = 7
    default-time_zone = +8:00
    max_connect_errors = 65535
    max_allowed_packet = 536870912
    max_connections = 5120
    innodb_buffer_pool_instances = 1
    innodb_buffer_pool_size = 6442450944
    innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:15G
    server_id = 100
metadata:
  name: mysql-config

default-storage-engine=INNODB
character-set-server=utf8
collation-server=utf8_general_ci

mysql> show variables like "character%";
+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client     | utf8                       |
| character_set_connection | utf8                       |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | utf8                       |
| character_set_server     | utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+

set_time_limit(0);
function fnGet($filename)
{
    $content = file_get_contents($filename);
    return $content;
}

function fnGetContent($filename)
{
    $content = fnGet($filename);
    return $content;
}
   
$times=100000;   
echo '数据库查询结果：<br/>';
//---------------------------------
$begin=fnGetMicroTime();
for($i=0;$i<$times;$i++)
{
    $res=$dbcon->mydb_query("SELECT log_Content FROM blog WHERE log_ID='1'");
    $row=$dbcon->mydb_fetch_row($res);
    $content=$row[0];
}
echo 'fetch_row '.$times.' 次时间：<font color=red>'.(fnGetMicroTime()-$begin).'</font>秒<br/>';
//---------------------------------

$begin=fnGetMicroTime();
for($i=0;$i<$times;$i++)
{
    $res=$dbcon->mydb_query("SELECT log_Content FROM blog WHERE log_ID='1'");
    $row=$dbcon->mydb_fetch_array($res);
    $content=$row['log_Content'];   
}
echo 'fetch_array '.$times.' 次时间：<font color=red>'.(fnGetMicroTime()-$begin).'</font>秒<br/>';
//---------------------------------

$begin=fnGetMicroTime();
for($i=0;$i<$times;$i++)
{
    $res=$dbcon->mydb_query("SELECT log_Content FROM blog WHERE log_ID='1'");
    $row=$dbcon->mydb_fetch_object($res);
    $content=$row->log_Content;   
}
echo 'fetch_object '.$times.' 次时间：<font color=red>'.(fnGetMicroTime()-$begin).'</font>秒<br/>';
//---------------------------------

$dbcon->mydb_free_results();
$dbcon->mydb_disconnect();

fnWriteCache('test.txt',$content);

echo '直接读文件测试结果：<br/>';

//---------------------------------
$begin=fnGetMicroTime();
for($i=0;$i<$times;$i++)
{
    $content = fnGetContent('test.txt');
}
echo 'file_get_contents直接读'.$times.'次时间：<font color=red>'.(fnGetMicroTime()-$begin).'</font>秒<br/>';
//---------------------------------

$begin=fnGetMicroTime();
for($i=0;$i<$times;$i++)
{
    $fname = 'test.txt';
    if(file_exists($fname))
     {
        $fp=fopen($fname,"r");//flock($fp,LOCK_EX);       
        $file_data=fread($fp, filesize($fname));//rewind($fp);      
        fclose($fp);
    }
    $content = fnGetContent('test.txt');
}   
echo 'fopen直接读'.$times.'次时间：<font color=red>'.(fnGetMicroTime()-$begin).'</font>秒<br/>';