Use share identifiers to identify workloads

You can use share identifiers to tag jobs and differentiate between users and workloads. The Amazon Batch scheduler tracks usage for each share identifier by using the (T * weightFactor) formula, where T is the vCPU usage over time. The scheduler picks jobs with the lowest usage from the share identifier. You can use a share identifier without overriding it.

You can set fair-share scheduling priority to configure the order that jobs are run in on a share identifier. Jobs with a higher scheduling priority are scheduled first. If you don’t specify a fair-share scheduling policy, all jobs that are submitted to the job queue are scheduled in FIFO order. When you submit a job, you can’t specify a share identifier or fair-share scheduling priority.