做mod_wsgi守护进程和mpm-prefork实际创build线程？

这是我的网站主页：

Welcome to your mod_wsgi website! It uses: Python 3.5.4 (default, Aug 22 2017, 05:13:36) [GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] WSGI version: (4, 5, 19) mod_wsgi.process_group = 'user' wsgi.multithread = False

相关的httpd.conf行是：

 WSGIDaemonProcess user processes=2 threads=1 python-home=<path-to-home> python-path=<python-path> WSGIProcessGroup user WSGIRestrictEmbedded On WSGILazyInitialization On WSGIApplicationGroup %{GLOBAL}

但是，htop在每个进程下显示3个线程：

在这里输入图像说明

我不介意，但我的应用程序不是线程安全的。

这里是httpd.conf的其余部分：

 ServerRoot "/home/user/webapps/apache/apache2" LoadModule mpm_prefork_module modules/mod_mpm_prefork.so LoadModule authz_core_module modules/mod_authz_core.so LoadModule dir_module modules/mod_dir.so LoadModule env_module modules/mod_env.so LoadModule log_config_module modules/mod_log_config.so LoadModule mime_module modules/mod_mime.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule wsgi_module modules/mod_wsgi.so LoadModule unixd_module modules/mod_unixd.so LoadModule alias_module modules/mod_alias.so LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined CustomLog /home/user/logs/user/access_apache.log combined ErrorLog /home/user/logs/user/error_apache.log DirectoryIndex index.py DocumentRoot /home/user/webapps/apache/htdocs Listen 12865 KeepAlive Off SetEnvIf X-Forwarded-SSL on HTTPS=1 StartServers 5 MinSpareServers 5 MaxRequestsPerChild 0 MaxClients 20 Alias /robots.txt /home/user/webapps/user/env/00/templates/robots.txt WSGIDaemonProcess user processes=2 threads=1 python-home=/home/user/.virtualenvs/envp python-path=/home/user/webapps/user:/home/user/webapps/user/env:/home/user/.virtualenvs/envp WSGIProcessGroup user WSGIRestrictEmbedded On WSGILazyInitialization On WSGIApplicationGroup %{GLOBAL} # WSGIScriptAlias / /home/user/webapps/user/env/env/wsgi.py <Directory /home/user/webapps/apache/htdocs> Options +ExecCGI AddHandler wsgi-script .py </Directory>