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Linux Process Scheduler: An Insight into Optimized Web Services
Linux Process Scheduler: An Insight into Optimized Web Services
The accelerated rate of growth in the amount of web applications returns as a result an increase in the traffic that web servers must handle. This aggregated traffic, in addition to the demand of the clients to be served in a real time frame, leads to the requirement of a customized way to control web related resources. All processes of the web server are tied to the control that the OS scheduler has over them, and for the default settings, the scheduler is set to handle general purpose tasks instead of being optimized forweb serving purposes. To address this issue, the use of custom settings into the scheduler will allow the daemons needed to run a web page (such as Apache, PHP and a SQL DB) to be handled by the OS as efficiently as possible. The results of the test will be the comparison in performance of a web server for different settings on the Linux Scheduler.
Christopher Salvador Márquez Álvarez & César Alfredo Espinosa Michel
DEVOLOPMENT OF AN ALGORITHM TO DETERMINATE THE ORIENTATION USING AN IMU
DEVOLOPMENT OF AN ALGORITHM TO DETERMINATE THE ORIENTATION USING AN IMU
In this paper we will study an algorithm designed by Madgwick which is commonly used to determine the orientation of a quadcopter. The algorithm uses a group of accelerometers, gyroscopes and magnetometers integrated in what is called an IMU as input. Some differences have been found between the results obtained by the original paper and the implementation done by the author. Therefore, a thorough study has been made, finding a miscalculation in the equations. The results show a relative average error in the orientation of 1,44 ppm.
andoni
Why it's good that Soulstealer Vayne is so hard to get - a statistical Analysis
Why it's good that Soulstealer Vayne is so hard to get - a statistical Analysis
I analyzed the Hextech-Crafting in a Stochastic Simulation with 10 Million Players and found that you're going to make more Riot Points than you spend (in value) and thats without counting Champs. I've made some assumptions, which can be found down in the paper itself for those interested. For everyone else: If you're trying to maximize your RP-Net-Worth stack up on Hextech Chests.
WORST BRUISER EU
Solving N-Queens
Solving N-Queens
Through the modification of the kernel on a Ubuntu system, we managed to solve the n-Queens problem after changing the default time-slice, swappiness, latency and wakeup-granularity to different values and testing the problem.
Rodolfo Lepe, Gerardo Velasco
Consumo de Alimentos Provenientes de Animales: el Mayor y Más Ignorado Factor Contaminante
Consumo de Alimentos Provenientes de Animales: el Mayor y Más Ignorado Factor Contaminante
Consumo de Alimentos Provenientes de Animales: el Mayor y Más Ignorado Factor Contaminante
ivan
Operating Systems Project: Kernel Optimization
Operating Systems Project: Kernel Optimization
An attempt of achieving a Kernel optimaization using Ubuntu 16..04.1 LTS, Phoronix Test Suite and different value changes and tests for an internal Kernel variable: the runtime value.
Jorge Dominic Márquez Muñoz, Juan Manuel Romero Guardado
Running Realtime Scheduling Analysis
Running Realtime Scheduling Analysis
The Linux kernel controls the way tasks (or processes) are managed in the running system. The task scheduler, sometimes called process scheduler, is the part of the kernel that decides which task to run next. In this project its analyzed the behavior of scheduler by changing a default value from the runtime scheduling. The default value is 950000µs, or 0.95 seconds for the sched\_rt\_runtime\_us or scheduler realtime running variable. Meaning that 5% of the CPU time is reserved for processes that don't run under a real-time or deadline scheduling policy. This value in this file specifies how much of the "period" time can be used by all real-time and deadline scheduled processes on the system. The AIO-Stress which shows the obtained results in the different tests is an a-synchronous I/O benchmark created by SuSE which is is a German Linux distribution provider and business unit of Novell, Inc.
Monserrat Genereux
The effects of disruptive communication on user engagement in the collaborative consumption model
The effects of disruptive communication on user engagement in the collaborative consumption model
Software is designed to simplify the lives of its users. The rapid growth of social media and the technology industry has foreseen a plethora of different types of software used as a service, with the aim of engaging its users and creating a form of revenue. With an abundance of software applications from which to choose from, this paper looks into the types of communication between the user and the application itself, and how automation and disruptive notification are intertwined to form a successful application.
Duri Duri
Kernel Optimization: Modifying Multiple Tasks Related Variables
Kernel Optimization: Modifying Multiple Tasks Related Variables
This document talks about how we tried to do a benchmark using the aiostress test on ubuntu desktop 16.04, the things we found useful and the problems we encountered.
Alfonso

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