Things to check before to troubleshoot ADFS: https://technet.microsoft.com/en-us/library/adfs2-troubleshooting-things-to-check(v=ws.10).aspx

Performance monitoring with perfmon and counters:

  1. Launch Perfmon.exe from RUN or SEARCH
  2. Data Collector Sets > User Defined > Right Click > New > Data Collector Set
  3. Type Friendly Name & Select ‘Create Manually’, Click Next
  4. Select Performance Counter
  5. Add the respective counters as per the below list
  6. Select Directory to Store Performance Files
  7. Run As Default
  8. Click Finish

https://technet.microsoft.com/en-us/library/ff627833(v=ws.10).aspx

http://www.edutech.me.uk/ad-fs/adfs-performance-statistics-nlb-requirements/    ; <=== you can download Perfmon templates for ADFS