Simple MVC4 / Mono 3.2.1 application is running in Debian with Nginx and
mono-fastcgi-4 server.
In browser F5 key is hold down for 30 seconds.
After that there is long delay, browser shows page load icon.
After delay message
504 Gateway Time-out
nginx/0.7.67
appears
and top command (output below) shows that mono fastcgi server takes 200% cpu
forever (2 cores).
Only way to stop this is to kill mono fastcgi server manually and manually
to restart it
How to make mono fastcgi to return pages immediately and not use so much cpu
?
If same application is hosted with Apache and mod_mono , holding and
releasing F5 key in browser returns
page immediately and cpu usage goes to 0 immediately after F5 is released in
browser.
top - 00:40:38 up 1:43, 3 users, load average: 16.49, 15.92, 15.35
Tasks: 59 total, 1 running, 58 sleeping, 0 stopped, 0 zombie
Cpu(s): 34.5%us, 65.5%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si,
0.0%st
Mem: 2097152k total, 744828k used, 1352324k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 120120k cached
PID VIRT RES SHR %CPU %MEM TIME+ COMMAND
4366 500m 121m 21m 198 5.9 6:24.45 /opt/mono-3.2/bin/mono
/opt/mono-3.2/lib/mono/4.5/fastcgi- ....
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