eg: UK or Brides UK or Classical Art or Buy Music or Spirituality
 
eg: UK or Brides UK or Classical Art or Buy Music or Spirituality
 

Your Online Guide » Guide to Technology » Guide to The Internet

[H363]High Volume Fax Machine
by ,
Many webmasters wish they got a lot of traffic to their site. A day may come and their website may be very popular in just one day. This could be a reason that unique article is published on their site, or just a simple change in search position results in major search engines. So you get a lot of traffic, but is your server ready for this? Pages may take seconds to load and many visitors may think that the site is not available right now and go somewhere else

Today we will talk about Linux and apache tips and tricks that will help webmaster to tune their dedicated server to handle high traffic.

How to see that you get a lot of traffic? Check log files, or check traffic rating at alexa

How to see that your server is not capable of handling it? Use uptime command or top command. load average: 0.31, 0.46, 0.33 line is to search for. The first number shows current load (1 min average), second and third number show 5 and 15 min load average. If your 5-15 server load average is higher than 10 you have to worry about items discussed below.

Apache configuration
httpd.conf is a file file, usually located at /usr/local/apache/conf/httpd.conf path containing configuration settings for apache server. Cannot find the location of the file? Use locate command: >cd / then >locate httpd.conf

Main parameters to tune are.

MaxClients – sets the limit on the number of simultaneous requests that can be supported. Never set this number to high. Setting MaxClients parameter to a big number will lead to consumption of all available memory on your server and a hard disk swapping may occur. In other words the server will try to use hard disk space as additional memory, which is a very-very slow process. How to detect this? Use top command. Typical output of a swap command is shown below. Swap “41852k used" and Mem “624148k used" are two lines to look at. It memory size is approaching to total and swap used is growing then you are in trouble. Check MaxClients parameter. How to find what is the maximum that I can set? Calculate the average of your httpd process, divide total available memory by the average leaving some for the system. E.g. in case of 1 Gig RAM and average httpd process size 7MB on this server it is safe to set it to 100. What to set it to a larger value? Add more physical RAM.

top - 01:04:08 up 4 days, 2:19, 1 user, load average: 0.31, 0.46, 0.33
Tasks: 129 total, 1 running, 128 sleeping, 0 stopped, 0 zombie
Cpu(s): 5.0% us, 1.3% sy, 0.3% ni, 87.4% id, 5.6% wa, 0.3% hi, 0.0% si
Mem: 1027668k total, 624148k used, 403520k free, 10300k buffers

Swap: 2048276k total, 41852k used, 2006424k free, 446804k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15856 nobody 15 0 47532 7180 3532 S 3.3 0.7 0:00.17 httpd
16097 nobody 15 0 46736 6036 3212 S 1.3 0.6 0:00.06 httpd

KeepAlive - allows multiple requests to be sent over the same TCP/IP connection. Turning it on can greatly improve the speed of your server, particularly when you have static pages and are serving quite a bit of images from your server. An example would be a catalogue site with screenshots. From my experience it is best to keep it On

KeepAliveTimeout – sets the number of seconds that the child httpd process sits and takes memory. From my experience it is best to set it to minimum, 1-3 seconds.

MaxRequestsPerChild – sets how many requests to serve per new httpd child process. You may set it very low, thus constantly freeing the memory, however on a particular case values like 15 or 20 may work well. As an example our site Filesland showing 10 images per page has this parameter set to 15.

After you change settings in httpd.conf do not forget to restart apache. You may do this from control panel or from command line > service httpd restart


When it comes down to defining the ideal number of sets to include in a workout, there are three set structures commonly employed by bodybuilders. The first is "low volume", and requires the trainer to achieve maximum intensity in a very small number of sets. The second is "medium volume" and allows the trainer more sets per workout, but results in diminished intensity, as the trainer usually isn't capable of maintaining the same level of intensity for as long. The third set structure, "high volume", involves limited intensity, many sets, and a great deal of time spent in the gym. All three set structures have their place in bodybuilding training.

Low Volume - 6 to 10 sets

Sometimes the time isn't available to train for very long. Sometimes the goal is to add pounds to a personal best on a particular compound movement. Sometimes the goal is to shock the body or give tired joints a rest. In times like these, spending an incredibly brief, yet incredibly intense, amount of time in the gym can best serve these goals. Typically, compound movements work best, in the range of 2 exercises of 3-4 sets, or 3 exercises of 2-3 sets.

Medium Volume - 10 to 16 sets

Most trainers in the gym find this set scheme to be the most useful, productive, and practical. Complete four exercises, for 3-4 sets each, and get out of the gym. It allows the trainers to utilize two heavy compound movements and two isolation movements, if desired, to ensure the muscle is adequately trained. It also doesn't create too much of a strain upon the central nervous system.

High Volume - 20 or more sets

Typically, only advanced trainers should attempt high volume training. It creates an enormous strain upon the central nervous system (CNS) and puts the joints and muscles in a precariously dangerous environment for becoming injured. The human body simply wasn't designed to move heavy weights for 2 hours per day, six days per week. High volume training requires a great deal of food, rest, and supplementation in order to be used consistently. It is only recommended for intermediate trainers to break through a plateau, and even then, for only a brief time period.

All three set structures are useful at one time or another, based upon the goals of the trainer, resources available, steroid use, and experience. Knowledge and awareness of all three types allow the bodybuilder the flexibility to change routines when conditions call for it, or just to keep things fresh!

Article Source : Pg. 65

Dane Fletcher has sinced written about articles on various topics from Detoxification, Body Building and Health. Dane Fletcher is the world's most prolific bodybuilding and fitness expert and is currently the executive editor for BodybuildingToday.com. If you are looking for more. Dane Fletcher's top article generates over 301000 views. to your Favourites.
EditorialToday Guide to Technology has 3 sub sections. Such as Technology, Increase Adsense Revenue and Information & Technology. With over 20,000 authors and writers, we are a well known online resource and editorial services site in United Kingdom, Canada & America . Here, we cover all the major topics from self help guide to A Guide to Business, Guide to Finance, Ideas for Marketing, Legal Guide, Lettre De Motivation, Guide to Insurance, Guide to Health, Guide to Medical, Military Service, Guide to Women, Pet Guide, Politics and Policy , Guide to Technology, The Travel Guide, Information on Cars, Entertainment Guide, Family Guide to, Hobbies and Interests, Quality Home Improvement, Arts & Humanities and many more.
About Editorial Today | Contact Us | Terms of Use | Submit an Article | Our Authors