How do I know if my web application needs to be load balanced?
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It's been said that if it takes a user longer that 6 seconds for a web page to load that abandonement will occur at a higher rate than one which loads within 5 seconds and after 10 seconds users frustration jumps even more. You might want to look at studies such as the one on this page.\nhttp://www.websiteoptimization.com/speed/1/\n\nA good way to measure performance is using a company like keynote which will give you performance results. After that If you don't like the results you see, you could do many different things depending on what your site does and how it's generated. From local load balancing, to using a content delivery network like Akamai which will not only relieve the load off of your server it will also give you the ability to scale when your site goes through peak usage periods.
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Just looked at their website.This is an 'all-in-one ' package which may suit a greenfield development but if you are having to integrate with other middleware? Tomcat/JBOSS/Websphere/Microsoft MTS/.NET?.It's all very well using grids,parallelism and clustering , but you still have the page-lock or contention problem , i.e. what if 2 processes are after the same part of the DB? They have a Caching Edition , but this only postpones the problem . If you have less than 100 TPS then your usually OK with a single instance of MySQL. Any more than that and you start haibg to think a bit. ( take a look at the Oracle performance tuning sites , lots theree about disk / cache / processor configuring).
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The control panel provided by your web host should give you the answer.
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1. first you need to have a high end system to prevent out of memory etc.\n2. you need to have a server OS like windows server 2003 (preferred)\n3. you need to have a high bandwidth connection\n4. you need to install the database servers like SQL Server, MS Access, MySQL, Oracle etc\n5. You need to install .net frameworks, Java VMs, PHP etc.\n6. You need to install and configure web containers like Websphere, weblogic, jboss, tomcat, cassini etc.
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depends upon ur internet speed and yahoo server traffic...if u hav a good inet connection, less chance to got server busy!!!!!!!!!
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Depends on what aspect of the web you are talking about?  For a web server you would want to run tests for load handling, page response time, multi-request timings, file security and server security.\n\nIf you are talking about a web site development then you need to test for security, proper data returns for queries, valid and responsive links, and displaying of dynamic content if that is included.  Some sites will have additional tests depending on the design.  A DHTML sites has different needs and expectations then a portal site like My.YAHOO.com
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er...\n\nGoogle\nYahoo\nAlta Vista\nExcite\n\nheck.. check a whole load at once with dogpile
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Try GRISOFT AVG...its free and gets updated often. The page to find out more is http://free.grisoft.com/freeweb.php/doc/2/\n\nThe best one i know of is NOD32 but it can be expensive
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This totally depends on what you need your servers to do. \n\nLinux - Stable, Fairly easy to manage with the right applications.  Open Source so much more affordable. Makes for good proxy server, and Router as well as a very nice mail and the best web server unless you want your site in asp or asp.net. Easy Hardware requirements\n\nA little tougher to keep up to date regarding security patches especially with kernel patches. A little tougher to figure out things like Samba and other Windows integration features.\n\nWindows - Integrates best with windows workstations. Very easy to install, setup, and manage. Microsoft offers pretty much any server features you could want fully integrated.\n\nVery high hardware requirements, Very expensive, Poor memory management, requires frequent reboots and disk maintenance. Number one target for hackers.
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get a good QoS software and limit all traffic but that on port 25 to 0kbps\nunless you are talking about webmail, then you have to let http through (port 80)\nand pop3: port 110\nhttps: 443\nvarious http servers: 8080\n\nhave fun
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* spring balance\n    * pivot balance\n    * load cell
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Hello. It's free application which enhance the performance of your PHP scripts. It increases runtime performance up to 40%.
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Depends which one; sometimes servers experience problems.
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Surely Apache is the most popular existing web server. Avoid IIS and generally Micro$oft!\nUse these sites to compare it with other web servers.\nhttp://www.serverwatch.com/stypes/compare/\nhttp://www.acme.com/software/thttpd/benchmarks.html\nhttp://litespeedtech.com/benchmark.html
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Hi there,\n\nUnfortunately, the web is a stateless, event-driven environment.  This means that your web pages sit on the web server until someone requests them.  That being the case, if no one requests a page from your site for a week, then your code won't execute for a week.\n\nIf you have enough traffic, you could hack something together that would look at a global application variable every time a page loads and if the flag hasn't been set, it would go out and read the db, send the email, and set the flag.  However, this would be a HUGE hack, and I don't recommend it as it's not very reliable.  Think about it like this: what if you have two or more visitors requesting the web page at the same time--or if the first visitor doesn't set the flag before other visitors request pages?  The emails would be sent out multiple times and your clients would get spammed!!\n\nIf it were me (and I owned the web server), I'd create a Windows Service that would do whatever you need at whatever interval you choose.  This would be extremely reliable and easy to do.  However if your site is hosted, you probably won't be able to get away with this.\n\nFor a hosted site, I would probably create a web page whos only function is to go out, read your DB, send the emails, and provide a report.  Make it so this webpage is NOT LINKED to your web site in any way...you have to type the URL in directly.  Then, I'd create a Windows Service and install it on my HOME computer, to go out and request the page every day.  It's still kind of a hack, but at least it'd be a somewhat reliable hack. <grin>\n\nHope this helps!  Good luck!\n--Dan
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100 % OF THE COMPUTED  LOAD.
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I have not noticed any Widgets that had much overhead. \n\nOther then a second or two delay when first loading on boot up you won't have any slow down.