我在我的日志中看到了一些Killed消息用于我的gunicorn进程，有时当我在django shell上时，它只是获得Killed。
经过一些研究后，我发现这可能导致资源不足，特别是记忆力下降。 我正在开发使用512MB的流浪虚拟机，具有以下堆栈：
Nginx
+
Gunicorn with 3 workers
+
3 RQ workers
+
Redis as Cache
+
Redis as DataStore (is not meant to store a lot of data, mainly used to store the queues for the workers)
+
PostgreSQL
对于部署，我最初计划使用2台1GB的机器启动。 DataBase（PostgreSQL Server）将在一台机器上，而所有其他机器在另一台机器上。我想知道我是否应该根据我发现的内容改变这个计划。
Machine 1 of 1GB: Nginx, Gunicorn, RQ Workers, Redis Cache, Redis DataStore
Machine 2 of 1GB: PostgreSQL
事实上，当我查看内存消耗时，我发现它更像是枪手，RQ工作人员正在消耗大量内存。每个流程大约45MB，有7个流程（4个Gunicorn + 3个RQ工作者）。
1）django应用程序的内存占用是否正常？
2）这些过程能否发展得更大？
3）另外，任何关于postgres: my_project my_project 10.0.0.51 idle进程的概念是什么？
(venv)mike@vagrant-ubuntu-trusty-64:/var/local/sites/my_project$ ps aux --sort=-rss,-vsz | head -21
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
my_project 24650 0.2 8.7 161200 44072 ? S 19:14 0:02 /var/local/sites/my_project/venv/bin/python /projects/my_project/webapp/manage.py rqworker high
my_project 24654 0.2 8.7 161188 44072 ? S 19:14 0:02 /var/local/sites/my_project/venv/bin/python /projects/my_project/webapp/manage.py rqworker high default low
my_project 24651 0.2 8.7 161184 44068 ? S 19:14 0:02 /var/local/sites/my_project/venv/bin/python /projects/my_project/webapp/manage.py rqworker high default low
my_project 26144 0.2 8.6 163612 43628 ? S 19:14 0:01 /var/local/sites/my_project/venv/bin/python /var/local/sites/my_project/venv/bin/gunicorn my_project.wsgi:application --name my_project_app --workers 3 --user=my_project --group=my_project --log-level=info --bind=unix:/tmp/my_project.gunicorn.sock --access-logfile=/projects/my_project-logs/vm_logs/gunicorn-my_project-access.log --log-file=/projects/my_project-logs/vm_logs/gunicorn-my_project.log
my_project 26143 0.2 8.6 163596 43608 ? S 19:14 0:01 /var/local/sites/my_project/venv/bin/python /var/local/sites/my_project/venv/bin/gunicorn my_project.wsgi:application --name my_project_app --workers 3 --user=my_project --group=my_project --log-level=info --bind=unix:/tmp/my_project.gunicorn.sock --access-logfile=/projects/my_project-logs/vm_logs/gunicorn-my_project-access.log --log-file=/projects/my_project-logs/vm_logs/gunicorn-my_project.log
my_project 26139 0.2 8.6 163592 43608 ? S 19:14 0:01 /var/local/sites/my_project/venv/bin/python /var/local/sites/my_project/venv/bin/gunicorn my_project.wsgi:application --name my_project_app --workers 3 --user=my_project --group=my_project --log-level=info --bind=unix:/tmp/my_project.gunicorn.sock --access-logfile=/projects/my_project-logs/vm_logs/gunicorn-my_project-access.log --log-file=/projects/my_project-logs/vm_logs/gunicorn-my_project.log
postgres 25660 0.0 3.2 246436 16212 ? S 19:14 0:00 /usr/lib/postgresql/9.3/bin/postgres -D /var/lib/postgresql/9.3/main -c config_file=/etc/postgresql/9.3/main/postgresql.conf
my_project 26102 0.0 2.4 56704 12332 ? S 19:14 0:00 /var/local/sites/my_project/venv/bin/python /var/local/sites/my_project/venv/bin/gunicorn my_project.wsgi:application --name my_project_app --workers 3 --user=my_project --group=my_project --log-level=info --bind=unix:/tmp/my_project.gunicorn.sock --access-logfile=/projects/my_project-logs/vm_logs/gunicorn-my_project-access.log --log-file=/projects/my_project-logs/vm_logs/gunicorn-my_project.log
root 24615 0.0 2.3 56624 11936 ? Ss 19:14 0:00 /usr/bin/python /usr/local/bin/supervisord -c /etc/supervisord.conf --nodaemon
postgres 25679 0.0 1.2 247668 6268 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55189) idle
postgres 25674 0.0 1.2 247668 6264 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55187) idle
postgres 25678 0.0 1.2 247668 6264 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55188) idle
postgres 25683 0.0 1.2 247668 6264 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55190) idle
postgres 26547 0.0 1.2 247668 6264 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55191) idle
postgres 26548 0.0 1.2 247668 6264 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55192) idle
postgres 26549 0.0 1.2 247668 6264 ? Ss 19:14 0:00 postgres: my_project my_project 10.0.0.51(55193) idle
my_project 26652 0.0 0.8 21844 4284 pts/0 Ss 19:15 0:00 -bash
root 26603 0.0 0.8 107696 4236 ? Ss 19:15 0:00 sshd: my_project [priv]
postgres 25662 0.0 0.6 246572 3200 ? Ss 19:14 0:00 postgres: checkpointer process