New paper “State-Machine Replication for Planet-Scale Systems” to be presented at Eurosys’20
New paper “State-Machine Replication for Planet-Scale Systems” to be presented at Eurosys’20. Congrat to Pierre and Tuanir!
New paper “Using differential execution analysis to identify thread interference”. To appear in IEEE Transactions on Parallel and Distributed Systems
Abstract Understanding the performance of a multi-threaded application is difficult. The threads interfere when they access the same shared resource, which slows down their execution. Unfortunately, current profiling tools report the hardware components or the synchronization primitives that saturate, but they cannot tell if the saturation is the cause of a performance bottleneck. In this paper, we propose a holistic metric able to pinpoint the blocks of code that suffer interference the most, regardless of the interference cause. Our metric uses performance variation as a universal indicator of interference problems. With an evaluation of 27 applications we show that our metric can identify interference problems caused by 6 different kinds of interference in 9 applications. We are able to easily remove 7 of the bottlenecks, which leads to a performance improvement of up to 9 times
New paper “ScalOMP: analyzing the Scalability of OpenMP applications” to be presented at IWOMP’19
Anton Daumen will present his work “ScalOMP: analyzing the Scalability of OpenMP applications” at IWOMP’19.
His paper is available online: https://hal.archives-ouvertes.fr/hal-02179726