# http://tengine.taobao.org/document/http_sysguard sysguard on; sysguard_load load=10.5 action=/loadlimit; sysguard_mem swapratio=20% action=/swaplimit; sysguard_mem free=20M action=/freelimit; sysguard_rt rt=2.5 period=5s action=/rtlimit; location /loadlimit { return 503; } location /swaplimit { return 503; } location /freelimit { return 503; } location /rtlimit { return 503; }