Microsoft patents system to check if software updates slow down servers

1. A method comprising: analyzing telemetry information associated with workloads executing on a plurality of endpoints in a distributed computing system; determining, based on the telemetry information, a first endpoint of the plurality of endpoints associated with a first periodic workload, wherein the first periodic workload is identified based on both determining that a query hash associated with the first endpoint repeats on a periodic basis satisfying a periodicity threshold and determining that a variation in query data associated with queries associated with the query hash satisfies a data variation threshold; determining first values of a performance metric corresponding to execution of the first periodic workload for the first endpoint, the first values associated with telemetry information generated prior to deploying a first deployment to the first endpoint; determining second values of the performance metric for the first endpoint, the second values corresponding to execution of the first periodic workload for the first endpoint and associated with telemetry information generated after deploying the first deployment to the first endpoint; determining a first post-deployment impact of deploying the first deployment to the first endpoint by comparing the first values of the performance metric to the second values of the performance metric; and performing a first action based at least on the first post-deployment impact, wherein the first action comprises automatically modifying deployment of the first deployment to the plurality of endpoints based on the first post-deployment impact to control operation of the distributed computing system.