We have a SharePoint Farm (7 WFEs and 1 DB), last code deployment was weeks ago. Since Friday, when we load the web portal that is hosted on the farm via browser and via any location (worldwide), randomly, it takes 12-15 seconds to load one of the following:
- The noto sans font file
- One random PNG out of over 20 that we have in the home page
- An API call to a SharePoint list to get some items
- An API call to an Azure cloud that we are pulling some data from
We have checked all the Servers, their Disk sizes, their CPU usages, their Memory usages, they all look healthy and fine, no spikes, no overutilization. We have checked with the Network team and they claim nothing was changed network wise. We have restarted IIS and the whole Farm.
Is there something that we can check from a SharePoint perspective, that might help us understand what is the root cause?