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Interposition agents

Michael B. Jones
1993 ACM SIGOPS Operating Systems Review  
In this way, the known benefits of interposition can also be extended to the domain of the system interface.  ...  Many contemporary operating systems utilize a system call inter-ace between the operating system and its clients. interface implementations to be written, many of which would not otherwise have been attempted  ...  While this implementation is often run in processor kernel space, this need not be the case, as in the Mach 3.0 Unix Semer/Emulator [ 16] .  ... 
doi:10.1145/173668.168626 fatcat:2kt24r5yifakvemgyiagbc6ssi

The performance of μ-kernel-based systems

Hermann Härtig, Michael Hohmuth, Jochen Liedtke, Sebastian Schönberg
1997 ACM SIGOPS Operating Systems Review  
Moreover, we ported the Linux operating system to run on top of the L4 p-kernel and compared the resulting system with both Linux running native, and MkLinux, a Linux version that executes on top of a  ...  These numbers demonstrate both that it is possible to implement a high-performance conventional operating system personality above a p-kernel, and that the performance of the p-kernel is crucial to achieve  ...  AIM Technology for providing us with the AIM Multiuser Benchmark Suite VII.  ... 
doi:10.1145/269005.266660 fatcat:peptnrmws5dvvk5a4m6hbbgbjm

The performance of μ-kernel-based systems

Hermann Härtig, Michael Hohmuth, Jochen Liedtke, Sebastian Schönberg
1997 Proceedings of the sixteenth ACM symposium on Operating systems principles - SOSP '97  
Moreover, we ported the Linux operating system to run on top of the L4 p-kernel and compared the resulting system with both Linux running native, and MkLinux, a Linux version that executes on top of a  ...  These numbers demonstrate both that it is possible to implement a high-performance conventional operating system personality above a p-kernel, and that the performance of the p-kernel is crucial to achieve  ...  AIM Technology for providing us with the AIM Multiuser Benchmark Suite VII.  ... 
doi:10.1145/268998.266660 dblp:conf/sosp/HartigHLSW97 fatcat:yldnxzo62bhj3mevusre34kjjm

The evolution of Coda

M. Satyanarayanan
2002 ACM Transactions on Computer Systems  
In this article, we describe how the Coda file system has evolved to meet this challenge through the development of mechanisms for server replication, disconnected operation, adaptive use of weak connectivity  ...  The article closes with a discussion of the technical and nontechnical lessons that can be learned from the evolution of the system.  ...  The views and conclusions in this paper are those of the author, and do not represent the opinions, express or implied, of the U.S.  ... 
doi:10.1145/507052.507053 fatcat:lob5fyaqh5edrlbxctvkzupcby

A General Dynamic Information Flow Tracking Framework for Security Applications

Lap Lam, Tzi-cker Chiueh
2006 Proceedings of the Computer Security Applications Conference  
This paper presents a general dynamic information flow tracking framework (called GIFT) for C programs that allows an application developer to associate applicationspecific tags with input data, instruments  ...  To demonstrate the usefulness of GIFT, we implement a complete GIFT application called Aussum, which allows selective sandboxing of network client applications based on whether their inputs are "tainted  ...  Valgrind is an x86 emulator that can instrument a program as it is run.  ... 
doi:10.1109/acsac.2006.6 dblp:conf/acsac/LamC06 fatcat:pweklugy2vhn7g5mkjqiclygc4

A secure isolation of software activities in tiny scale systems

Oliver Stecklina
2015 2015 IEEE International Conference on Pervasive Computing and Communication Workshops (PerCom Workshops)  
In addition, an investigation of technologies of commodity computer systems that are suitable to build secure systems is presented.  ...  Hence, a single error in a local software component is not limited to the component itself, instead the complete system may be influenced.  ...  In both cases an attacker needs a way to redirect the normal program execution to its malicious code.  ... 
doi:10.1109/percomw.2015.7134037 dblp:conf/percom/Stecklina15 fatcat:exjpv5kxrzgczimh2rwjabeere

RADIO SYNCHROTRON FLUCTUATION STATISTICS AS A PROBE OF MAGNETIZED INTERSTELLAR TURBULENCE

C. A. Herron, Blakesley Burkhart, A. Lazarian, B. M. Gaensler, N. M. McClure-Griffiths
2016 Astrophysical Journal  
We find that the structure function slope, and a diagnostic of anisotropy that we call the integrated quadrupole ratio modulus, both depend on the Alfv\'enic Mach number.  ...  However, these statistics also depend on the orientation of the mean magnetic field in the synchrotron emitting region relative to our line of sight, and this creates a degeneracy that cannot be broken  ...  vector to a point in the emitting region, described by a Cartesian coordinate system in which the z-axis is along the line of sight. r is the separation vector between two points being used to calculate  ... 
doi:10.3847/0004-637x/822/1/13 fatcat:xp2ferfplzc4batv7ujibeuwyy

Evolution of the Unix System Architecture: An Exploratory Case Study

Diomidis Spinellis, Paris C. Avgeriou
2019 IEEE Transactions on Software Engineering  
For the sake of simplicity, in this paper we use the word "Unix" to refer both to UNIX systems developed at Bell Labs and to Unix-like systems, such as FreeBSD, that descended from them. D.  ...  Studying the evolution of this remarkable system from an architectural perspective can provide insights on how to manage the growth of large, complex, and long-lived software systems.  ...  The authors are especially grateful to the anonymous reviewers and to Kirk McKusick, George Neville-Neil, Warren Toomey, and Alexios Zavras, for their detailed and insightful comments regarding earlier  ... 
doi:10.1109/tse.2019.2892149 fatcat:jmshylzuyfgsjkmwettbi46mme

QoS Support for Mobile Computing [chapter]

Steven Pope, Paul Webster
1997 Building QoS into Distributed Systems  
This dissertation describes a novel architecture called Notus and its supportfor applications operating in a mobile environment.  ...  The concept of the traded hando is introduced, where applications are able to participate in the hando process, rebuilding connections to the most appropriate service.  ...  This implementation has the potential of also providing migration support for operating systems emulated by Mach.  ... 
doi:10.1007/978-0-387-35170-4_7 fatcat:hsdmoibgvneebifhcbda3ftnbm

LibrettOS

Ruslan Nikolaev, Mincheol Sung, Binoy Ravindran
2020 Proceedings of the 16th ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environments  
LibrettOS acts as a microkernel OS that runs servers in an isolated manner.  ...  Because the original rumprun unikernel targeted a much simpler model for uniprocessor systems, we redesigned it to support multicore systems.  ...  The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright annotation thereon.  ... 
doi:10.1145/3381052.3381316 dblp:conf/vee/0001SR20 fatcat:5wmkfqjnrbdmrdu4uxse4fjt74

Boomerang: Real-Time I/O Meets Legacy Systems [article]

Ahmad Golchin, Soham Sinha, Richard West
2020 arXiv   pre-print
We show how to construct composable task pipelines in Boomerang that combine functionality spanning a custom RTOS and a legacy Linux system.  ...  We also show how Boomerang outperforms a virtualized system called ACRN, designed for automotive systems.  ...  Thanks also to Drako Motors for equipment used in this work. This paper has been greatly improved by the feedback of the RTAS reviewers.  ... 
arXiv:1908.06807v2 fatcat:myfd3uqcqrd57hbjvxviasd4d4

Single system image: A survey

Philip Healy, Theo Lynn, Enda Barrett, John P. Morrison
2016 Journal of Parallel and Distributed Computing  
h i g h l i g h t s • We provide a retrospective survey of single system image. • There has been novel recent work in the area of distributed hypervisors. • Despite a peak in interest in the 2000s, kernel-level  ...  computing resources are aggregated and presented via an interface that maintains the illusion of interaction with a single system.  ...  Acknowledgments The authors wish to thank Ian Lee for helping to gather the data depicted in Fig. 2 .  ... 
doi:10.1016/j.jpdc.2016.01.004 fatcat:6eqzcmrmu5eptmktzn52i7yy7e

Transparently interposing user code at the system interface

M.B. Jones
[1992] Proceedings Third Workshop on Workstation Operating Systems  
the high-level objects provided by this interface, rather than in terms of the intercepted system calls themselves.  ...  This dissertation presents a toolkit that substantially increases the ease of interposing user code between clients and instances of the system interface by allowing such code to be written in terms of  ...  The interposition toolkit uses the Mach 2.5/3.0 system call interception facility called "task setemulation o" tO redirect system calls made by applications to interposition agents.  ... 
doi:10.1109/wwos.1992.275680 fatcat:j7ttizzwr5h5fh5armmbdeakxa

A Survey of Big Data Machine Learning Applications Optimization in Cloud Data Centers and Networks [article]

Sanaa Hamid Mohamed, Taisir E.H. El-Gorashi, Jaafar M.H. Elmirghani
2019 arXiv   pre-print
Wide ranging efforts were devoted to optimize systems that handle big data in terms of various applications performance metrics and/or infrastructure energy efficiency.  ...  However, the increasing traffic between and within the data centers that migrate, store, and process big data, is becoming a bottleneck that calls for enhanced infrastructures capable of reducing the congestion  ...  All data are provided in full in the results section of this paper.  ... 
arXiv:1910.00731v1 fatcat:kvi3br4iwzg3bi7fifpgyly7m4

Comparative study of shear wave-based elastography techniques in optical coherence tomography

Fernando Zvietcovich, Jannick P. Rolland, Jianing Yao, Panomsak Meemon, Kevin J. Parker
2017 Journal of Biomedical Optics  
In particular, TBP reports the best performance with an accuracy error <4.1%.  ...  Numerical simulations were also performed in order to support the experimental findings.  ...  Acknowledgments The instrumentation engineering development of this research benefitted from support of the II-VI Foundation. Fernando Zvietcovich is supported by the Fulbright Program (U.S.A.  ... 
doi:10.1117/1.jbo.22.3.035010 pmid:28358943 fatcat:ojc6tcchmvenxij5dq5a3xlrri
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