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Topic: Response time

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	Response Time
		Traditionally, response time is often defined as the interval from when a user initiates a request to the instant at which the first part of the response is received at by the application.
		Response time measuring points must be carefully considered because in client server applications, as well as web systems, the first characters returned to the application often does not contribute to the rendering of the screen with the anticipated response, and do not represent the users impression of response time.
		For response time requirements that are stated in terms of what the user sees on the screen, WinRunner should be used, unless there is a reliable mathematical calculation to translate communications based response time into screen based response time.
	www.loadtest.com.au /Terminology/ResponseTime.htm (617 words)

	Response time - Wikipedia, the free encyclopedia
		In a data system, the system response time is the interval between the receipt of the end of transmission of an inquiry message and the beginning of the transmission of a response message to the station originating the inquiry.
		Response Time is an attribute that applies to LCD monitors.
		It should be noted that the response time given by the LCD manufacturer is often the fastest measured, and not the average or maximum response time (which may be significantly longer).
	en.wikipedia.org /wiki/Response_time (414 words)

	IBM: The Economic Value of Rapid Response Time
		Research on rapid response time now indicates that this earlier theory is not borne out by the facts: productivity increases in more than direct proportion to a decrease in response time.
		With 390 users, the computer response time had deteriorated to an average of 4 seconds and the time to complete an average task had increased 50%, from 32 minutes to 48 minutes (Figure 5).
		This change brought system response time for the project team down from the 2.3 seconds that was common throughout the facility to 0.84 seconds.
	www.vm.ibm.com /devpages/jelliott/evrrt.html (2640 words)

	UAF Computing and Communications - Response Time
		Response times in the chart represent the time between when this record or ticket is made and when a trained technician should make contact, or start working on the problem.
		Response time does not represent the time to solve a problem, it only represents the time between the initial call and response of DCC's Technical Services.
		Response time does not mean that the technician will necessarily go to where the complaint is made.
	www.uaf.edu /dcc/services/response.html (203 words)

	Response time: Facts and details from Encyclopedia Topic (Site not responding. Last check: )
		(the system response time is the interval between the receipt of the end of transmission transmission (telecommunications) quick summary:
		In communications, transmission is the act of transmitting electrical messages (and the associated phenonomena of radiant energy that pass through media)....
		Response Time is an attribute that applies to LCD[Click link for more facts about this topic] monitors.
	www.absoluteastronomy.com /encyclopedia/r/re/response_time.htm (999 words)

	System Dynamics - Response Time
		This response is the response of a linear system to a unit step.
		One widely used measure of speed of response is the 10%-90% rise time, or the ten-to-ninety rise time.
		Settling time can be a good way to measure response time as long as care is taken to ensure that the response stays within 10% (or 5%?) of the final, steady-state value.
	www.facstaff.bucknell.edu /mastascu/eControlHTML/SysDyn/SysDyn5.html (2325 words)

	Response Time Overview
		Normally, response times should be as fast as possible, but it is also possible for the computer to react so fast that the user cannot keep up with the feedback.
		Therefore, the response time guidelines for web-based applications are the same as for all other applications.
		For example, this is the limit from the time the user selects a column in a table until that column should highlight or otherwise give feedback that it's selected.
	www.useit.com /papers/responsetime.html (1103 words)

	Pressure Transmitter Response Time Test Methods
		In practice, however, the response time of a pressure transmitter is usually defined as the time delay between the response of the reference transmitter and the test transmitter as they pass through a setpoint.
		In the time domain analysis, the raw noise data is used in a Univariate Autoregressive (UAR) model to obtain the impulse response and then the step response from which the transmitter response time is calculated.
		This response time corresponds to the response time that would be obtained for the transmitter using the conventional step or ramp test.
	www.ams-corp.com /test_methods/pressure_transmitter_test_methods.html (1163 words)

	Response-time Essay
		One of the challenges in analysis of response time is the fact that some of the inputs require the desktop computer to do very little, and consequently are very quick, while other inputs send the computer off into a large and complex process which may take seconds or even minutes.
		Another serious issue to consider is the variation in response time caused by the configuration of the individual workstation or terminal.
		The graphs displayed here show average response times, in each instance, the average of all the incidents that occurred over a period of 15 minutes is displayed in each bar of the graph.
	www.wsu.edu /SYSDATA/pubresp/response.html (584 words)

	Information Security Glossary - Response / Response Time
		Response time usually refers to a user's subjective assessment of a computers 'response' to their request.
		The response time of a system results from the interaction of multiple components and not simple the 'power' of the computer itself (although this helps!) There could be massive contention across the network, or there could be heavy processing taking place on resulting in little available 'CPU' time to deal with your request.
		One way of improving response time, is to increase the priority of the process which you are running.
	www.yourwindow.to /information-security/gl_responsetime.htm (178 words)

	LCD TV and Image lag: LCD Response Time
		A TrTf LCD response time measurement is shorter than any other measurement as it is relatively easy to over-drive the pixel to change state fast when operating between extreme levels i.e.
		Gray-to-gray LCD response time is a measure of the time it takes a pixel to change state from one level of gray to the next.
		To complicate matters, manufactures tend to quote the fastest LCD response time instead of the average or typical response time that a display is capable of achieving overall under normal usage conditions.
	www.practical-home-theater-guide.com /lcd-response-time.html (1861 words)

	Application Response Time - NetScout Systems: Technology Solutions
		To proactively manage business services and effectively troubleshoot poor response time you need to see the context surrounding performance in order to determine whether other network activity is a contributing factor.
		There is a spate of approaches to response time and many products have add-ons that are not well integrated with other modules and metrics, providing no visibility into the context of performance degradations, and leaving you and your staff to manually correlate information across multiple products and screens.
		Response time of all application types whether the applications are well-known, custom, web-based or complex, nGenius tracks the performance of the business processes in your network.
	www.netscout.com /solutions/tech_response_time.asp (829 words)

	Response time (Site not responding. Last check: )
		Consequently, the issue of response time of the face velocity control system is strongly debated for competing system approaches.
		The time required for a system to reach set point face velocity and remain steady after a disturbance is one way of defining fume hood control system response time.
		This measurement of tracer gas spillage and response recognizes a more critical parameter for safe operation of a fume hood than time needed to reach set point velocity.
	ateam.lbl.gov /Design-Guide/DGHtm/responsetime.htm (180 words)

	Flat TV People : LCD TVs and Response Time
		Response time is basically the amount of time it takes for a liquid crystal cell to go from active (fl) to inactive (white) and back to active (fl) again.
		LCD TV manufacturers have been steadily improving response times as the demand for fast moving full motion video has increased.
		Some newer model LCD TVs have response times as fast as 16 ms.
	www.flattvpeople.com /tutorials/lcd-response-time.asp (124 words)

	Response Time
		Due to the long summer-school class sessions and the teacher's commitment to peer response, however, they were allowed 1.5 hours for each workshop, and, with groups of only 3 students each, they said they had enough time to complete their responses without pressure and with adequate reflection and thoughtfulness.
		Overall, I was pleased with the synchronous response time, and, though I would definitely consider an asynchronous approach in a distance context, I would still want to incorporate strategies to replicate the best features of the synchronous response time if I made such a change.
		Responses were conducted in class on a few occasions, but feedback was generally considered homework.
	english.ttu.edu /kairos/7.3/coverweb/tannacito/text5.html (607 words)

	Response Time Analysis Made Easy in Oracle Database 10g
		The Database CPU Time Ratio is calculated by dividing the amount of CPU expended in the database by the amount of "database time," which is defined as the time spent by the database on user-level calls (with instance background process activity being excluded).
		If, however, response times are longer than desired, the DBA will then want to know what types of user activities are responsible for making the database work so hard.
		Examining the response time of SQL statements became easier in Oracle9i, and with Oracle Database 10g, DBAs have many tools at their disposal to help them track inefficient database code.
	www.oracle.com /technology/pub/articles/schumacher_analysis.html (1852 words)

	X-bit labs - Articles - Closer Look at 15” LCD Monitors Features: Pixel Response Time
		It is the time interval between the change of the signal in a particular cell and the change of the state of this cell.
		In fact the problem of measuring response time looks simple at first sight: you could measure the time between the dispatch of the signal for cell state change and the actual change, tracking the pixel glow with the help of a photodiode.
		After some brainstorming we chose another way of measuring pixel response time: we only need to draw the graph of pixel luminosity with a photodiode and oscilloscope and measure the time between the beginning and end of a luminosity change.
	www.xbitlabs.com /articles/other/display/response.html (785 words)

	PCWorld.com - LCD Specs: Not So Swift (Site not responding. Last check: )
		For one of its monitors, Samsung advertised one response time and showed a different response time on the model's spec sheet--yet the company maintains that both figures were accurate.
		The 4ms is absolutely correct, and the 8ms is as well." Nichols blames an internal misunderstanding for the use of two different response time measurements for the same monitor, and says that Samsung pulled the ad when the inconsistency surfaced.
		Which response time measurement is more meaningful to users depends on how they intend to use their monitor.
	www.pcworld.com /news/article/0,aid,121906,00.asp (919 words)

	New LCD With 3MS Response Time! (Site not responding. Last check: )
		Grey-grey is a more realistic measurement (it represents the time to change from a shade of grey back to the same shade of grey vs. the time from off to on to off again).
		The advertised 3ms response is not necessarily a good measure of the timing.
		It depends what criteria are used to guage that response, and my feeling is it may not be from fl to white to fl, but possibly a fl to white or white to fl measure.
	digg.com /technology/New_LCD_With_3MS_Response_Time_ (681 words)

	TIME.com: TIME Poll Results: Hurricane Katrina -- Page 1
		Officials At All Levels Responsible: Majorities of those surveyed believe officials at all levels, including the victims themselves, are responsible for what went wrong in the hurricane's aftermath.
		Racial and Partisan Divide on Response Time: Although 3 in 5 (60%) Americans do not believe that race or low income level slowed down the government's initial relief efforts, there is a racial and partisanship divide.
		Methodology: This TIME poll was conducted by telephone between September 7 and 8, 2005 among a national random sample of 1,000 adults, age 18 and older throughout America.
	www.time.com /time/press_releases/article/0,8599,1103504,00.html (947 words)

	Response Time: Eight Seconds, Plus or Minus Two - psychological need for speed improve slow website response times for ...
		Slow response times and difficult navigation are the most common complaints of Internet users.
		This chapter explores response time research related to the Web, and features an interview with Dr. Ben Shneiderman, noted HCI researcher.
		John Hoxmeier and Chris DiCesare found that user satisfaction is inversely related to response time.
	www.websiteoptimization.com /speed/1 (1000 words)

	Response Time (Site not responding. Last check: )
		What do you think is a sufficient and decent response time to a Tenants request for emergency help.
		Reasonable time frame may have to be urgent if it's a heat problem in the North.
		In some states the response times are set by law, in WA the times are:
	www.mrlandlord.com /archives/dec00/12181.html (846 words)

	Paramedic Response Time: Does It Affect Patient Survival? -- Pons et al. 12 (7): 594 -- Academic Emergency Medicine
		care is measured by meeting an 8-minute response time guideline.
		the effect of paramedic response time on survival to hospital
		response time within 8 minutes was not associated with improved
	www.aemj.org /cgi/content/abstract/12/7/594 (398 words)

	What is response time? - a definition from Whatis.com
		The elapsed time between the end of an inquiry or demand on a computer system and the beginning of a response; for example, the length of the time between an indication of the end of an inquiry and the display of the first character of the response at a user terminal.
		There is also the concept of perceived response time, which is the time a user senses as the beginning of input and the end of the response.
		It is actually possible (though not usual) for perceived response time to be too fast (it can be mildly disconcerting if a system responds almost instantly).
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci212896,00.html (321 words)

	Little's Law (Site not responding. Last check: )
		Peter Denning succinctly phrases this rule as ``The average number of objects in a queue is the product of the entry rate and the average holding time.'' He applies it to his wine cellar: ``I have 150 cases of wine in my basement and I consume (and purchase) 25 cases per year.
		Assume n users of average think time z are connected to an arbitrary system with response time r.
		If you cut the path from the system's output to the users, you see a meta-system with average load n, average response time z+r, and throughput x (measured in jobs per time unit).
	www.cs.bell-labs.com /cm/cs/pearls/sec074.html (425 words)

	Citrix Response Time Monitoring Software - Service level Reports
		Chroniker’s AppsWatch tells you the overall response time, and also the time it took for every screen to appear.
		The information on response time is doubly useful when you can analyze the behavior of your application over time.
		There are several methods to monitor response time.
	www.nrgglobal.com /products/appswatch_citrix_features.php (644 words)

	MacKinney Systems - Enterprise Software for z/OS and VSE - CICS/Response Time Monitor (Site not responding. Last check: )
		Monitor all terminal response times and isolate those transactions which need attention.
		Sort the reports by terminal, transaction, operator, or response time.
		Average Response Time graphically listing the average response time for your CICS for each hour, for each day, or for each month.
	www.mackinney.com /products/cics/cics_rtm.asp (266 words)

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