Browsing by Author "Pajuelo González, Manuel Alejandro"
Now showing items 1-20 of 27
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A cost-efficient QoS-aware analytical model of future software content delivery networks
(2021-07)
Article
Open AccessFreelance, part-time, work-at-home, and other flexible jobs are changing the concept of workplace, and bringing information and content exchange problems to companies. Geographically spread corporations may use remote ... -
Characterizing the resource-sharing levels of the UltraSparc T2 processor
(Association for Computing Machinery (ACM), 2009)
Conference report
Restricted access - publisher's policyThread level parallelism (TLP) has become a popular trend to improve processor performance, overcoming the limitations of extracting instruction level parallelism. Each TLP paradigm, such as Simultaneous Multithreading or ... -
Code semantic-aware runahead threads
(2009-09)
Conference report
Restricted access - publisher's policyMemory-intensive threads can hoard shared re- sources without making progress on a multithreading processor (SMT), thereby hindering the overall system performance. A recent promising solution to overcome this important ... -
Control-flow independence reuse via dynamic vectorization
(Institute of Electrical and Electronics Engineers (IEEE), 2005)
Conference report
Open AccessCurrent processors exploit out-of-order execution and branch prediction to improve instruction level parallelism. When a branch prediction is wrong, processors flush the pipeline and squash all the speculative work. However, ... -
Deep learning detection of GPS spoofing
(Springer Nature, 2022)
Conference report
Open AccessUnmanned aerial vehicles (UAVs) are widely deployed in air navigation, where numerous applications use them for safety-of-life and positioning, navigation, and timing tasks. Consequently, GPS spoofing attacks are more and ... -
Dynamic web worker pool management for highly parallel javascript web applications
(2016-09-10)
Article
Open AccessJavaScript web applications are improving performance mainly thanks to the inclusion of new standards by HTML5. Among others, web workers API allows multithreaded JavaScript web apps to exploit parallel processors. However, ... -
FAME: FAirly MEasuring multithreaded architectures
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
Conference report
Open AccessNowadays, multithreaded architectures are becoming more and more popular. In order to evaluate their behavior, several methodologies and metrics have been proposed. A methodology defines when the measurements of a given ... -
Introducing runahead threads
(2007-07)
Research report
Open AccessSimultaneous Multithreading processors share their resources among multiple threads in order to improve performance. However, a resource control policy is needed to avoid resource conflicts and prevent some threads from ... -
Mapa conceptual global como herramienta para la visión de conjunto de un sistema operativo
(2009-06-15T12:03:04Z)
Conference report
Open AccessNumerosas asignaturas están formadas por un temario que está totalmente interrelacionado. Al final del curso los estudiantes deberían haber adquirido los conocimientos de cada tema pero, más importante aún, deberían saber ... -
Measuring operating system overhead on CMT processors
(IEEE Computer Society Publications, 2008)
Conference report
Open AccessNumerous studies have shown that Operating System (OS) noise is one of the reasons for significant performance degradation in clustered architectures. Although many studies examine the OS noise for High Performance Computing ... -
Measuring operating system overhead on Sun UltraSparc T1 processor
(2009-06)
Conference report
Open AccessNumerous studies have shown that Operating System (OS) noise is one of the reasons for significant performance degradation in clustered architectures. Although many studies examine the OS noise for High Performance Computing, ... -
On the problem of evaluating the performance of multiprogrammed workloads
(2010-12)
Article
Open AccessMultithreaded architectures are becoming more and more popular. In order to evaluate their behavior, several methodologies and metrics have been proposed. A methodology defines when the measurements for a given workload ... -
Overhead of the spin-lock loop in UltraSPARC T2
(2008-06-04)
Conference report
Open AccessSpin locks are task synchronization mechanism used to provide mutual exclusion to shared software resources. Spin locks have a good performance in several situations over other synchronization mechanisms, i.e., when on ... -
Performance scalability analysis of JavaScript applications with web workers
(2016-12)
Article
Open AccessWeb applications are getting closer to the performance of native applications taking advantage of new standard–based technologies. The recent HTML5 standard includes, among others, the Web Workers API that allows ... -
Platform-agnostic steal-time measurement in a guest operating system
(2018-10)
Research report
Open AccessSteal time is a key performance metric for applications executed in a virtualized environment. Steal time measures the amount of time the processor is preempted by code outside the virtualized environment. This, in turn, ... -
ROB-free architecture proposal
(2007-09)
Research report
Open AccessModern processors improve performance by taking advantage of the instruction level parallelism (ILP) by means of allowing hundreds of instructions in flight. However, they still have to face an important source of degradation ... -
Runahead threads to improve SMT performance
(Institute of Electrical and Electronics Engineers (IEEE), 2008)
Conference report
Open AccessIn this paper, we propose Runahead Threads (RaT) as a valuable solution for both reducing resource contention and exploiting memory-level parallelism in Simultaneous Multithreaded (SMT) processors. Our technique converts ... -
Runahead threads: reducing resource contention in SMT processors
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
Conference lecture
Open AccessIn this work, we propose Runahead threads as a valuable solution for both exploiting memory-level parallelism and reducing resource contention in simultaneous multithreaded processors. -
Speculative dynamic vectorization
(Institute of Electrical and Electronics Engineers (IEEE), 2002)
Conference report
Open AccessTraditional vector architectures have shown to be very effective for regular codes where the compiler can detect data-level parallelism. However, this SIMD parallelism is also present in irregular or pointer-rich codes, ... -
Speculative Vectorization for Superscalar Processors
(Universitat Politècnica de Catalunya, 2005-11-24)
Doctoral thesis
Open AccessTraditional vector architectures have been shown to be very effective in executing regular codes in which the compiler can detect data-level parallelism, i.e. repeating the same computation over different elements in the ...
