PERFORMANCE to Improve the Performance Many Things Must Be Considered
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Mobile Telemedicine and Wireless Remote Monitoring Applications
İSTANBUL TECHNICAL UNIVERSITY INSTITUTE OF SCIENCE AND TECHNOLOGY MOBILE TELEMEDICINE AND WIRELESS REMOTE MONITORING APPLICATIONS M.Sc. Thesis by Taner SOYUGENÇ, B.Sc. Department : Electronics and Communication Engineering Programme : Biomedical Engineering NOVEMBER 2006 PREFACE In this project, my main goal is to implement a mobile sample application by defining the related global standards for telemedicine. The work is focused on recommendations of technology associated with a feasibility study. First of all, I would like to thank Assoc. Prof. Dr. Selçuk PAKER for his valuable advice, support and encouragement to accomplish the project. Besides, I would like to thank my family who is always with me giving support at every step of my life. November 2006 Taner SOYUGENÇ iii CONTENTS ACRONYMS vi LIST OF TABLES viii LIST OF FIGURES ix SUMMARY xi ÖZET xii 1. INTRODUCTION 1 1.1. Technology Overview 2 1.1.1. Communication Infrastructure 5 1.1.2. Overview of GSM-GPRS 6 1.1.2.1. Brief History of GSM 8 1.1.2.2. GPRS 12 1.1.3. Mobile Solutions 14 1.1.4. Wireless Medical Sensors 15 1.2. Aim of the Project 16 2. WORLDWIDE APPLICATIONS, VENDORS AND STANDARDS 18 2.1. Available Products 19 2.1.1. ECG 19 2.1.2. Pulse Oximeter 20 2.1.3. Blood Pressure Sensor 23 2.1.4. Various Sensor Brands 24 2.1.5. Advanced Research 27 2.1.6. Home Care Monitoring Systems 31 2.2. Medical Information Standards and Organizations 35 2.2.1. ASTM 39 2.2.2. CEN/TC251 Health Informatics 39 2.2.3. -
Uwsgi Documentation Release 1.9
uWSGI Documentation Release 1.9 uWSGI February 08, 2016 Contents 1 Included components (updated to latest stable release)3 2 Quickstarts 5 3 Table of Contents 11 4 Tutorials 137 5 Articles 139 6 uWSGI Subsystems 141 7 Scaling with uWSGI 197 8 Securing uWSGI 217 9 Keeping an eye on your apps 223 10 Async and loop engines 231 11 Web Server support 237 12 Language support 251 13 Release Notes 317 14 Contact 359 15 Donate 361 16 Indices and tables 363 Python Module Index 365 i ii uWSGI Documentation, Release 1.9 The uWSGI project aims at developing a full stack for building (and hosting) clustered/distributed network applica- tions. Mainly targeted at the web and its standards, it has been successfully used in a lot of different contexts. Thanks to its pluggable architecture it can be extended without limits to support more platforms and languages. Cur- rently, you can write plugins in C, C++ and Objective-C. The “WSGI” part in the name is a tribute to the namesake Python standard, as it has been the first developed plugin for the project. Versatility, performance, low-resource usage and reliability are the strengths of the project (and the only rules fol- lowed). Contents 1 uWSGI Documentation, Release 1.9 2 Contents CHAPTER 1 Included components (updated to latest stable release) The Core (implements configuration, processes management, sockets creation, monitoring, logging, shared memory areas, ipc, cluster membership and the uWSGI Subscription Server) Request plugins (implement application server interfaces for various languages and platforms: WSGI, PSGI, Rack, Lua WSAPI, CGI, PHP, Go ...) Gateways (implement load balancers, proxies and routers) The Emperor (implements massive instances management and monitoring) Loop engines (implement concurrency, components can be run in preforking, threaded, asynchronous/evented and green thread/coroutine modes. -
A Brief Review of Speech Synthesis
Computer Science Computer Networks Piotr Leszczyński Book No. s4207 Remote voice Web browser for people with sight impairment Zdalna głosowa przeglądarka WWW dla osób niewidomych Engineering Thesis Written under the advice of Ph.D. Eng. Przemysław Skurowski Bytom September 2009 Contents 1 Introduction............................................................................... 7 2 A brief review of speech synthesis ................................................ 9 2.1 Human speech synthesis ......................................................... 9 2.2 Text-To-Speech systems overview .......................................... 10 2.2.2 Concatenation Speech Systems ...................................... 11 2.2.3 Articulator Speech Systems ............................................ 11 2.2.4 History ........................................................................ 12 3 Application modeling and implementation .................................... 14 3.1 Application concept ............................................................... 14 3.2 Functional requirements ........................................................ 15 3.3 Non-Functional requirements ................................................. 16 3.4 Feasibility analysis ................................................................ 16 3.5 Technical limitations ............................................................. 17 3.5.1 Accessibility ................................................................. 17 3.5.2 Speech synthesis ......................................................... -
O'reilly® Jason Hunter
rr Help for Server-Side Java Developer, '" Jason Hunter O'REILLY® with William Crawford Page 1 of 94 J ava" Servlet Programming Page 2 of 94 THE JAVA"" SERIES Learning Java m Java'" Performance Tuning Java'" Threads Java'" Internationalization Java'· Network Programming JavaServer Pages" Database Programming with JDBC'Mand Java'" Java m Message Service Java'" Distributed Computing Developing Java Beans'M Java" Security Java" Cryptography Also from O'Reilly Java" Swing Java" Servlet Programming Java'M in a Nutshell Java" I/O J ava" Enterprise in a Nutshell J ava™ 2D Graphics Java'" Foundation Classes in a Nutshell Enterprise Javafleans" Java" Examples in a Nutshell Creating Effective JavaHelp'M JiniTM in a Nutshell Java'" and XML The Enterprise Java" CD Bookshelf Page 3 of 94 -, Javan, Servlet Programming Second Edition Jason Hunter with William Crawford O'REILLY® Beijing. Cambridge. Farnham» Koln » Paris > Sebastopol. Taipei. Tokyo Page 4 of 94 Java Servlet Programming, Second Edition byJason Hunter with William Crawford Copyright © 2001,1998 O'Reilly & Associates, Inc. All rights reserved. Printed in the United States of America. Published by O'Reilly & Associates, Inc., 101 Morris Street, Sebastopol, CA 95472. Editors: Robert Eckstein and Paula Ferguson Production Editor: Colleen Gorman Cover Designer: Hanna Dyer Printing History: October 1998: First Edition. April 2001: Second Edition. Nutshell Handbook, the Nutshell Handbook logo, and the O'Reilly logo are registered trademarks and The Java™ Series is a trademark of O'Reilly & Associates, Inc. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and O'Reilly & Associates, Inc. -
NGINX-Conf-2018-Slides Rawdat
Performance Tuning NGINX Name: Amir Rawdat Currently: Technical Marketing Engineer at NGINX inc. Previously: - Customer Applications Engineer at Nokia inc. Multi-Process Architecture with QPI Bus Web Server Topology wrk nginx Reverse Proxy Topology wrk nginx nginx J6 Technical Specifications # Sockets # Cores # Model RAM OS NIC per Threads Name Socket per Core Client 2 22 2 Intel(R) 128 GB Ubuntu 40GbE Xeon(R) CPU Xenial QSFP+ E5-2699 v4 @ 2.20GHz Web Server 2 24 2 Intel(R) 192 GB Ubuntu 40GbE Xeon(R) & Platinum Xenial QSFP+ Reverse 8168 CPU @ Proxy 2.70GHz Multi-Processor Architecture #1 Duplicate NGINX Configurations J9 Multi-Processor Architecture NGINX Configuration (Instance 1) user root; worker_processes 48 ; worker_cpu_affinity auto 000000000000000000000000111111111111111111111111000000000000000000000000111111111111111111111111; worker_rlimit_nofile 1024000; error_log /home/ubuntu/access.error error; ….. ……. J11 NGINX Configuration (Instance 2) user root; worker_processes 48 ; worker_cpu_affinity auto 111111111111111111111111000000000000000000000000111111111111111111111111000000000000000000000000; worker_rlimit_nofile 1024000; error_log /home/ubuntu/access.error error; ……. ……. J12 Deploying NGINX Instances $ nginx –c /path/to/configuration/instance-1 $ nginx –c /path/to/configuration/instance-2 $ ps aux | grep nginx nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx_0.conf nginx: worker process nginx: worker process nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx_1.conf nginx: worker process nginx: worker process -
Bepasty Documentation Release 0.3.0
bepasty Documentation Release 0.3.0 The Bepasty Team (see AUTHORS file) Jul 02, 2019 Contents 1 Contents 3 1.1 bepasty..................................................3 1.2 Using bepasty’s web interface......................................4 1.3 Using bepasty with non-web clients...................................6 1.4 Quickstart................................................7 1.5 Installation tutorial with Debian, NGinx and gunicorn......................... 10 1.6 ChangeLog................................................ 12 1.7 The bepasty software Project....................................... 14 1.8 License.................................................. 14 1.9 Authors.................................................. 15 Index 17 i ii bepasty Documentation, Release 0.3.0 bepasty is like a pastebin for every kind of file (text, image, audio, video, documents, . ). You can upload multiple files at once, simply by drag and drop. Contents 1 bepasty Documentation, Release 0.3.0 2 Contents CHAPTER 1 Contents 1.1 bepasty bepasty is like a pastebin for all kinds of files (text, image, audio, video, documents, . , binary). The documentation is there: http://bepasty-server.readthedocs.org/en/latest/ 1.1.1 Features • Generic: – you can upload multiple files at once, simply by drag and drop – after upload, you get a unique link to a view of each file – on that view, we show actions you can do with the file, metadata of the file and, if possible, we also render the file contents – if you uploaded multiple files, you can create a pastebin with the list -
Next Generation Web Scanning Presentation
Next generation web scanning New Zealand: A case study First presented at KIWICON III 2009 By Andrew Horton aka urbanadventurer NZ Web Recon Goal: To scan all of New Zealand's web-space to see what's there. Requirements: – Targets – Scanning – Analysis Sounds easy, right? urbanadventurer (Andrew Horton) www.morningstarsecurity.com Targets urbanadventurer (Andrew Horton) www.morningstarsecurity.com Targets What does 'NZ web-space' mean? It could mean: •Geographically within NZ regardless of the TLD •The .nz TLD hosted anywhere •All of the above For this scan it means, IPs geographically within NZ urbanadventurer (Andrew Horton) www.morningstarsecurity.com Finding Targets We need creative methods to find targets urbanadventurer (Andrew Horton) www.morningstarsecurity.com DNS Zone Transfer urbanadventurer (Andrew Horton) www.morningstarsecurity.com Find IP addresses on IRC and by resolving lots of NZ websites 58.*.*.* 60.*.*.* 65.*.*.* 91.*.*.* 110.*.*.* 111.*.*.* 113.*.*.* 114.*.*.* 115.*.*.* 116.*.*.* 117.*.*.* 118.*.*.* 119.*.*.* 120.*.*.* 121.*.*.* 122.*.*.* 123.*.*.* 124.*.*.* 125.*.*.* 130.*.*.* 131.*.*.* 132.*.*.* 138.*.*.* 139.*.*.* 143.*.*.* 144.*.*.* 146.*.*.* 150.*.*.* 153.*.*.* 156.*.*.* 161.*.*.* 162.*.*.* 163.*.*.* 165.*.*.* 166.*.*.* 167.*.*.* 192.*.*.* 198.*.*.* 202.*.*.* 203.*.*.* 210.*.*.* 218.*.*.* 219.*.*.* 222.*.*.* 729,580,500 IPs. More than we want to try. urbanadventurer (Andrew Horton) www.morningstarsecurity.com IP address blocks in the IANA IPv4 Address Space Registry Prefix Designation Date Whois Status [1] ----- -
Load Balancing for Heterogeneous Web Servers
Load Balancing for Heterogeneous Web Servers Adam Pi´orkowski1, Aleksander Kempny2, Adrian Hajduk1, and Jacek Strzelczyk1 1 Department of Geoinfomatics and Applied Computer Science, AGH University of Science and Technology, Cracow, Poland {adam.piorkowski,jacek.strzelczyk}@agh.edu.pl http://www.agh.edu.pl 2 Adult Congenital and Valvular Heart Disease Center University of Muenster, Muenster, Germany [email protected] http://www.ukmuenster.de Abstract. A load balancing issue for heterogeneous web servers is de- scribed in this article. The review of algorithms and solutions is shown. The selected Internet service for on-line echocardiography training is presented. The independence of simultaneous requests for this server is proved. Results of experimental tests are presented3. Key words: load balancing, scalability, web server, minimum response time, throughput, on-line simulator 1 Introduction Modern web servers can handle millions of queries, although the performance of a single node is limited. Performance can be continuously increased, if the services are designed so that they can be scaled. The concept of scalability is closely related to load balancing. This technique has been used since the beginning of the first distributed systems, including rich client architecture. Most of the complex web systems use load balancing to improve performance, availability and security [1{4]. 2 Load Balancing in Cluster of web servers Clustering of web servers is a method of constructing scalable Internet services. The basic idea behind the construction of such a service is to set the relay server 3 This is the accepted version of: Piorkowski, A., Kempny, A., Hajduk, A., Strzelczyk, J.: Load Balancing for Heterogeneous Web Servers. -
Zope Documentation Release 5.3
Zope Documentation Release 5.3 The Zope developer community Jul 31, 2021 Contents 1 What’s new in Zope 3 1.1 What’s new in Zope 5..........................................4 1.2 What’s new in Zope 4..........................................4 2 Installing Zope 11 2.1 Prerequisites............................................... 11 2.2 Installing Zope with zc.buildout .................................. 12 2.3 Installing Zope with pip ........................................ 13 2.4 Building the documentation with Sphinx ............................... 14 3 Configuring and Running Zope 15 3.1 Creating a Zope instance......................................... 16 3.2 Filesystem Permissions......................................... 17 3.3 Configuring Zope............................................. 17 3.4 Running Zope.............................................. 18 3.5 Running Zope (plone.recipe.zope2instance install)........................... 20 3.6 Logging In To Zope........................................... 21 3.7 Special access user accounts....................................... 22 3.8 Troubleshooting............................................. 22 3.9 Using alternative WSGI server software................................. 22 3.10 Debugging Zope applications under WSGI............................... 26 3.11 Zope configuration reference....................................... 27 4 Migrating between Zope versions 37 4.1 From Zope 2 to Zope 4 or 5....................................... 37 4.2 Migration from Zope 4 to Zope 5.0.................................. -
AN OPEN SOURCE WEB SOLUTION Lighttpd Web Server and Chip Multithreading Technology
AN OPEN SOURCE WEB SOLUTION Lighttpd Web Server and Chip Multithreading Technology Reference Implementation Amanda Waite, Sun Microsystems Sun BluePrints™ Online — September 2008 Part No 820-5633-10 Revision 1.0, 9/23/08 Sun Microsystems, Inc. Table of Contents Reference Implementation . 1 The Web 2.0 Kit. 2 Hardware and Software Configuration . 3 Workload Test Descriptions. 4 The Faban Harness and Driver Framework . 4 Performance Tuning . 5 Opcode Caching . 5 Temporary Files . 9 Sizing the Number of Lighttpd Web Server and PHP Processes . 9 Database Configuration . 12 Lighttpd Web Server Configuration. 13 Memcached . 13 Network Interface Card Interrupt Handling . 13 Nagle’s Algorithm. 16 Network I/O . 17 Best Practices for Deployment . 18 Conclusion . 20 About the Author . 20 References . 20 Ordering Sun Documents . 21 Accessing Sun Documentation Online . 21 1 An Open Source Web Solution Sun Microsystems, Inc. An Open Source Web Solution With more users interacting, working, purchasing, and communicating over the network than ever before, Web 2.0 infrastructure is taking center stage in many organizations. Demand is rising, and companies are looking for ways to tackle the performance and scalability needs placed on Web infrastructure without raising IT operational expenses. Today companies are turning to efficient, high-performance, open source solutions as a way to decrease acquisition, licensing, and other ongoing costs and stay within budget constraints. The combination of open source Lighttpd Web server software and Sun servers with CoolThreads™ technology provides a scalable, high-performance, and cost-effective solution for Web environments. This Sun BluePrints™ article describes a reference implementation based on the Lighttpd Web server software and Sun SPARC® Enterprise T5120 servers, and explores its performance and scalability when running dynamic workloads. -
Thesis.Pdf (5.857Mb)
Faculty OF Science AND TECHNOLOGY Department OF Computer Science Metadata STATE AND HISTORY SERVICE FOR DATASETS Enable EXTRacting, STORING AND ACCESS TO METADATA ABOUT A DATASET OVER time. — Roberth Hansen INF-3990 Master’S Thesis IN Computer Science - May 2018 This thesis document was typeset using the UiT Thesis LaTEX Template. © 2018 – http://github.com/egraff/uit-thesis To Maria. Thank you very much. “When I’m working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong.” –R. Buckminster Fuller “The most important property of a program is whether it accomplishes the intention of its user.” –C.A.R Hoare AbstrACT Distributed Arctic Observatory (DAO) aims to automate, streamline and im- prove the collection, storage and analysis of images, video and weather mea- surements taken on the arctic tundra. Automating the process means that there are no human users that needs to be involved in the process. This leads to a loss of monitoring capabilities of the process. There are insufficient tools that allow the human user to monitor the process and analyze the collected volume of data. This dissertation presents a prototype of a system to aid researchers in moni- toring and analyzing metadata about a dataset. The approach is a system that collects metadata over time, stores it in-memory and visualizes the metadata to a human user. The architecture comprises three abstractions Dataset, Instrument and Visual- ization. The Dataset contains metadata. The Instrument extracts the metadata. -
(12) United States Patent (10) Patent No.: US 7,203,956 B2 Thomas Et Al
USOO7203956B2 (12) United States Patent (10) Patent No.: US 7,203,956 B2 Thomas et al. (45) Date of Patent: Apr. 10, 2007 (54) SYSTEM AND METHOD FOR THE SECURE 5,408,465. A 4, 1995 Gusella et al. ................ 37O/17 ENROLLMENT OF DEVICES WITH A 5.434,848 A 7/1995 Chimento, Jr. et al. CLEARNGHOUSE SERVER FOR INTERNET 5,473,630 A 12/1995 Penzias et al. TELEPHONY AND MULTIMEDIA 5,563,939 A 10, 1996 La Porta et al. COMMUNICATIONS 5,570,417 A 10/1996 Byers et al. 5,581,544 A 12/1996 Hamada et al. ............. 370,253 (75) Inventors: Stephen Thomas, Marietta, GA (US); 5,600,794. A 3. R - - - - - - - i - - - - - - - - - - - 395.200.01 Rodney Scott McManus, Atlanta, GA 5,606,602 A 2, 1997 Johnson et al. (US); Rick Vaughn, Roswell, GA (US) 5,633,919 A 5/1997 Hogan et al. s s s 5,638.433 A 6/1997 Bubien, Jr. et al. 5,668,955 A 9, 1997 deCiutiis et al. (73) Assignee: TransNexus, Inc., Atlanta, GA (US) 5,675,636 A 10/1997 Gray c - r 5,712.907 A 1/1998 Wegner et al. (*) Notice: Subject to any disclaimer, the term of this 5,740,361 A 4, 1998 Brown .................. 395,187.01 patent is extended or adjusted under 35 5,790,642 A 8, 1998 Tavlor et all U.S.C. 154(b) by 984 days. - W y (21) Appl. No.: 09/747,365 (Continued) (22) Filed: Dec. 22, 2000 FOREIGN PATENT DOCUMENTS e Afaf 9 EP O 781.