Apache + proxy_uwsgi

 1920 stackal+  20   0 3752232 3.491g   2504 S   0.0 23.8  22:52.50 uwsgi
 1527 nobody    20   0 2754628 2.372g    984 S   0.0 16.2   0:52.75 memcached
14428 www-data  20   0 2034680  12592   2944 S   0.0  0.1   0:01.15 apache2

nginx + uwsgi

 2339 www-data  20   0 3669712 3.411g   2440 S   0.0 43.7  10:44.24 uwsgi
 1209 nobody    20   0 2754628 2.372g    980 S   0.0 30.4   0:31.71 memcached
 1250 www-data  20   0   86356   2552   1020 S   0.0  0.0   0:00.01 nginx