PhD Defense Youri Raaijmakers

On December 1st 2021, Youri Raaijmakers will defend his PhD thesis titled 'Job-Replication Trade-Offs'.


LEAD Technologies Inc. V1.01Youri's promotors are Sem Borst (TU/e) and Onno Boxma (TU/e).


The defense will take place in room 0.710 of the Atlas building at TU/e and will start at 16:00.


From October 2021 Youri started working as a Design Engineer at ASML in Veldhoven in the Wafer Alignment research group.



This thesis is devoted to the performance analysis of redundancy scheduling, which has been proposed as one of the mechanisms to reduce response time in cloud computing applications. The key element in redundancy scheduling is the replication of jobs upon arrival. Replicas of each incoming job are dispatched to, say, d different servers. By creating multiple service opportunities, redundancy scheduling boosts the chance of a fast response from a server that is swift to provide service, and alleviates the risk of a long delay incurred when a job is assigned to a single server that may be slow. 

In the thesis we analyze three key performance metrics within redundancy scheduling, i.e., the stability condition, the expected response time and the tail behavior of the latency when allowing for correlated replicas and general job size distributions.


You can read the thesis here.

When: Wednesday December 1st, 2021
Time: 16:00
Where: TU/e


TU/e Atlas Building,

room 0.710