| PerfCap_UK Offers web-based cross-platform performance analysis and capacity planning tool. Also provides consulting services. |
| Performance_Dynamics_Company Develops performance tools, evaluates performance-related products, designs system benchmarks, and troubleshoots performance problems. Contact information, events calendar, and links to software tool |
| Red_Hill_Networks\'_WebSpray This tool allows you to stress test your web server through a LAN or modem connection. It will generate reports for errors and performance. |
| Reg_Day\'s_Capacity_Planning_site Cover mainframe capacity planning and various PC related subjects. |
| RRD_TOOL A useful open source tool for storage and retrieval of time series data. |
| Schema Schema is a provider of telecom resource management (TRM) solutions that enable operators of wireless networks worldwide to optimize and manage their resources. |
| Transaction_Design_Inc_ Consultant and tools vendor with focus on system monitoring, capacity planning, and benchmarking. Tools work on HP/Compaq/Tandem NonStop Kernel, Stratus VOS, and UNIX. Site includes articles on man |
| Watson_&_Walker,_Inc___Why_Your_CPU_Capacity_May_Not_Match_Your_Vendor\'s_Estimate Cheryl Watson discusses MVS and OS/390 capacity related issues. |
| Able_Software_R2V Vector conversion for scanned maps with tools optimized for mapping and geographic information systems. |
| Arbor_Image_Draftsman_Cutting_Shop Raster to vector software for stand-alone operation on Windows platforms. |
| AutoTrace Platform independent program for converting bitmap to vector graphics distributed under GPL. |
| Consistent_Software_WiseImage Line of hybrid graphics editing and raster to vector conversion software, as stand-alone Windows programs. |
| Easy_Trace_Pro Cartographic raster to vector conversion software with topology creation, checking, and editing tools. |
| Elgorithms_MagicTracer Hybrid graphics and raster to vector converter for Windows that has image editing, vector cleanup, and conversion tools. |
| GTXRaster_R2V Raster to vector add-on for AutoCAD and RasterDesign compatible with AutoDesk's Image Support Module. |
| Raster_to_Vector_Software Converts scanned drawings, maps, and raster images into vector files for editing in CAD applications. |
| RasterVect_Software The raster to vector conversion program that turns scanned raster images into vector format on Windows systems. |
| Siame_Editions_Vector_Eye Raster to vector converter that exports to SVG (Scalable Vector Graphics), PostScript and EPS. |
| SoftCover_Scan2CAD Scan2CAD raster to vector conversion software with OCR text recognition and editing tools. |
| Softelec_GmbH Providers of the HybridCAD software for raster to vector conversion and AutoCAD line tracing. |
| SoftSoft_net_WinTopo A raster to vector conversion program supporting topographic and GIS tools for Windows and Linux platforms. |
| SV_ScanRaster Raster to vector conversion software for converting paper drawings into CAD-ready files. |
| Trix_Systems,_Inc_ Converts scans of engineering drawings and logos to DWG, DXF, HPGL, or IGES. |
| VextraSoft_Vextractor Windows raster to vector conversion tool for CAD and GIS systems. |
| Fonts_for_the_Unicode_Character_Set Listing of some Unicode fonts. Short discussion of Unicode and fonts for Unicode. |
| Fonts_That_Support_Unicode Information on fonts for Windows and Macintosh platforms that include Unicode character ranges and that can be used to display documents or Web pages containing many languages, scripts and special cha |
| Multilingual_Unicode_TrueType_Fonts Listing of Unicode TrueType fonts for Windows platforms available for download on the Internet. Details on which scripts and character sets are supported, and information on using such fonts in Linux |
| Unicode_Fonts_and_Tools_for_X11 Information about Unicode fonts for Linux and X11 users. |
| HPUX-ADMIN_Mailing_List Searchable archive. |
| Alternative_OSs_on_the_Net Huge, comprehensive, alphabetized list of operating systems and OS link sites. All links, no comments. |
| A_Catalog_of_Operating_Systems Classified, alphabetic listing of most operating systems, past and present, distributed commercially or reported in English-language literature, platform oriented. From Computer Science 258, West Virg |
| Just_Say_No_to_Microsoft__Operating_Systems Describes dozens of living OSs, grouped by family similarities. Most are alternatives to Microsoft. |
| Linux_Kernel_Architecture_and_Other_OS_Links Categorized, large link list of resources on several operating systems: Linux, Windows, BSD, Mac OS X, Unix, Solaris, Palm OS, Symbian, Stinger (SmartPhone), general. |
| Microcomputer_Operating_Systems Some 70 OSs that run on microcomputers, PCs. User interfaces in earlier systems are command-line, character-oriented; later systems are mostly GUI-based. List, with brief descriptions, no links. From |
| Open_Source_Ring Alphabetized list of many links, OSs, projects. |
| Operating_Systems Links to tutorials, tips, free online how-to guides for BeOS, DOS, Macintosh; POSIX, Unix, Linux; OS/2, Windows 3.x-95/98/Me-NT/2000/XP-CE, mixed. [Knowledge Hound how-to directory] |
| Paul_Hsieh_OS_Page Loosely categorized list of about 100 links to developer resources for creating OSs, emulators, alternative OSs. |
| Dr__Dobb\'s_Journal Independent journal about programming over all languages, platforms, and tools. |
| AEC_Newsroom News and information for the AEC related CAD marketplace, supplied online by Digitalmedianet. |
| AECbytes Analysis, research, and reviews of AEC technology. |
Title page for ETD etd-4798-11230Type of DocumentMaster's ThesisAuthorLiu, Binzhang M.S.Author's Email Addressbliu@vt.eduURNetd-4798-11230TitleCharacterizing Web Response TimeDegreeMaster of ScienceDepartmentComputer ScienceAdvisory Committee Advisor Name Title Edward A. FoxCommittee ChairMarc AbramsCommittee MemberRoger W. EhrichCommittee Member KeywordsWorld Wide Web Latency Proxy CachingDate of Defense1998-04-22AvailabilityunrestrictedAbstractIt is critical to understand WWW latencyin order to design better HTTP protocols. In this studywe characterize Webresponse time and examine the effects of proxy caching, network bandwidth,traffic load, persistent connections for a page, and periodicity.Based on studies with four workloads, we showthat at least a quarter of the total elapsedtime is spent on establishing TCP connections with HTTP/1.0. Thedistributions ofconnection time and elapsed time can be modeled using Pearson,Weibul, or Log-logistic distributions. We also characterize the effectof a user's network bandwidth on responsetime.Average connection time from a clientvia a 33.6 K modem is two times longer than that from a client viaswitched Ethernet. We estimate the elapsed time savings from usingpersistent connections for a page to vary from about a quarter to a half.Response timesdisplay strong daily and weekly patterns. This study finds that a proxycaching server is sensitive to traffic loads.Contrary tothe typical thought about Web proxy caching, this study also finds that asingle stand-alone squid proxy cache does not always reduce response timefor our workloads. Implications ofthese results to future versions of the HTTP protocol and to Web applicationdesign also are discussed.Files Filename Size Approximate Download Time (Hours:Minutes:Seconds) 28.8 Modem 56K Modem ISDN (64 Kb) ISDN (128 Kb) Higher-speed Access thesis.pdf438.24 Kb00:02:0100:01:0200:00:5400:00:2700:00:02 Browse All Available ETDs by ( Author | Department )
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