Run a Jenkins job every one minute using H/1 * * * *

Try * * * * * to run every minute.

Unfortunately H/1 * * * * does not work due to open defect.

Defect: https://issues.jenkins-ci.org/browse/JENKINS-22129

Your intuition is right, H/1 is supposed to behave like "run every minute".

However, there is a well-known bug in Jenkins. See JENKINS-22129.

Currently, H/1 behaves like "run every hour".