Term Kind Topic What it is
Burstable Instance T-series, B-series concept Compute Models An instance that provides a low baseline CPU allocation and accrues credits while idle, spendable for short periods of full performance.
Compute Models concept Compute Models Virtual machines, containers, serverless functions and dedicated hardware — chosen by workload shape rather than by modernity.
Fragmentation Cost Bin-Packing Loss, Scheduling Fragmentation concept Compute Models The capacity that exists in aggregate but cannot be used because it is scattered across nodes in pieces too small for the jobs that need it - the dominant inefficiency in indivisible-resource scheduling.
Gang Scheduling Co-scheduling, All-or-Nothing Allocation concept Compute Models Allocating every resource a job needs simultaneously or not at all, so tightly-coupled distributed work cannot deadlock holding a partial allocation.
Instance Family concept Compute Models A group of instance types sharing a resource profile — general purpose, compute optimised, memory optimised, storage optimised, accelerated — chosen by which resource the workload actually exhausts first.