Jenkins has no database, it reads everything from disk. Ever since the server had a block storage mount added performance values of Jenkins are utter crap.

This likely is caused by the fact that the Jenkins jobs/ directory was moved to the block storage which means every single Jenkins operation which will show any information on at least one job (which is every single page really) will have to wait for storage IO rather than local disk IO. This breaks performance so bad it's not even fun anymore.

e.g. load this http://build.neon.kde.org/computer/(master)/

Porn over 56K was faster than this bullshit.