单声道 - mod_mono消耗100％的CPU

Question

我在Mono 3.2.8（Ubuntu 14.04 + Apache2.4.7 + mod_mono）上运行ASP.NET MVC 3站点。我注意到有两个进程占用了所有CPU。 跑步htop：

我也经常在我的日志中输入这个条目：

WARNING: WebConfigurationManager's LRUcache evictions count reached its max size
Cache Size: 100 (overridable via MONO_ASPNET_WEBCONFIG_CACHESIZE)
------------
[Fri Jun 05 06:49:53.446031 2015] [mpm_prefork:notice] [pid 21501] AH00171: Graceful restart requested, doing restart
mod-mono-server received a shutdown message
mod-mono-server received a shutdown message
mod-mono-server received a shutdown message
mod-mono-server received a shutdown message
mod-mono-server received a shutdown message

知道可能导致它的原因吗？