I have my VPS server installed apache2. 10,000 people connected to the sites, and it is now very slow, while my CPU is 1.25% and I/O is 20B/sec. I have free memory of 644 Mb and using is only 347.
My apache2.conf is now:
StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 20 MaxRequestsPerChild 0
KeepAlive is off.
I can't find any reason why it is so slow. What do you think?