Publication

The Battle of the Schedulers: FreeBSD ULE vs. Linux CFS

Publications associées (29)

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liblaiogen, a generic LAIO implementation

Olivier Crameri

This thesis introduces a new implementation of the LAIO api, liblaiogen. LAIO stands for Lazy Asynchronous I/O. It is an api for performing asynchronous I/O. Among several benefits, one of the most important is that LAIO is lazy, in the sense that it creat ...

2005

A Method for Transparent Admission Control and Request Scheduling in E-Commerce Web Sites

Willy Zwaenepoel, Sameh Mohamed Elnikety

This paper presents a method for admission control and request scheduling for multiply-tiered e-commerce Web sites, achieving both stable behavior during overload and improved response times. Our method externally observes execution costs of requests onlin ...

2004

Combining IntServ and DiffServ under Linux

Combining Integrated Services ([1], [5]) QoS mechanisms for end-to-end signaling at hosts and Differentiated Services ([2], [10]) QoS mechanisms in the network core is one proposal for overcoming the limitation of either mechanisms when applied alone ([8]) ...

2000

Differentiated Services on Linux

Recent Linux kernels offer a wide variety of traffic control functions, which can be combined in a modular way. We have designed support for Differentiated Services based on the existing traffic control elements, and we have implemented new components wher ...

1999

Linux offers a rich set of traffic control functions. This document gives an overview of the design of the respective kernel code, describes its structure, and illustrates the addition of new elements by describing a new queuing discipline. ...

1999

1998

Vassal: Loadable Scheduler Support for Multi-Policy Scheduling

George Candea

This paper presents Vassal, a system that enables applications to dynamically load and unload CPU scheduling policies into the operating system kernel, allowing multiple policies to be in effect simultaneously. With Vassal, applications can utilize schedul ...

1998

The Peregrine High-Performance RPC System

Willy Zwaenepoel

The Peregrine RPC system provides performance very close to the optimum allowed by the hardware limits, while still supporting the complete RPC model. Implemented on an Ethernet network of Sun-3/60 workstations, a null RPC between two user-level threads ex ...

1993