I've just taken a VPS Server with Assured 1 core AMD opetron and burstable to 8 cores. RAM is 5 GB
Average Usage so far been around 1 Cpu, but at a point of time - when checked through monitoring - site was slow, Sent mail to server admin - they replied
I could see that the server load was very high earlier. This has been resolved now.
05:30:02 AM 58 350 34.90 12.28 5.10
05:40:02 AM 12 309 13.77 33.58 22.60
The monitoring stats shows
Disk Mbps write peaked to 11.1 - which otherwise remains in range of .26 to .41
After 2 hours
Server load peaked to one minute average of 48.93 and 15 mins average of 22.67
CPU Utilisation went close to 900%
My question is Despite traffic was same at 100 visitors as per analytics - what such anomality explains - once happened for disk mbps and second for cpu utilisation and server peak. What could have had happened in those 10 to 15 minutes. What are the possiblities