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Web Hosting - Bandwidth and Server Load, What's That?
Two key performance metrics will impact every web site owner sooner or later: bandwidth and server load.
Bandwidth is the amount of network capacity available, and the term actually covers two different aspects. 'Bandwidth' can mean the measure of network capacity for web traffic back and forth at a given time. Or, it sometimes is used to mean the amount that is allowed for some interval, such as one month. Both are important.
As files are transferred, emails sent and received, and web pages accessed, network bandwidth is being used. If you want to send water through a pipe, you have to have a pipe. Those pipes can vary in size and the amount of water going through them at any time can also vary.
Total monthly bandwidth is a cap that hosting companies place on sites in order to share fairly a limited resource. Companies monitor sites in order to keep one site from accidentally or deliberately consuming all the network capacity. Similar considerations apply to instantaneous bandwidth, though companies usually have such large network 'pipes' that it's much less common for heavy use by one user to be a problem.
Server load is a more generic concept.
It often refers, in more technical discussions, solely to CPU utilization. The CPU (central processing unit) is the component in a computer that processes instructions from programs, ordering memory to be used a certain way, moving files from one place to the next and more.
Every function you perform consumes some CPU and its role is so central (hence the name) that it has come to be used as a synonym for the computer itself. People point to their case and say 'That is the CPU'. But, the computer actually has memory, disk drive(s) and several other features required in order to do its job.
Server load refers, in more general circumstances, to the amount of use of each of those other components in total.
Disk drives can be busy fetching files which they do in pieces, which are then assembled in memory and presented on the monitor, all controlled by instructions managed by the CPU.
Memory capacity is limited. It's often the case that not all programs can use as much as they need at the same time. Special operating system routines control who gets how much, when and for how long, sharing the total 'pool' among competing processes.
So, how 'loaded' the server is at any given time or over time is a matter of how heavily used any one, or all, of these components are.
Why should you care?
Because every web site owner will want to understand why a server becomes slow or unresponsive, and be able to optimize their use of it.
When you share a server with other sites, which is extremely common, the traffic other sites receive creates load on the server that can affect your site. There's a limited amount you can do to influence that situation. But if you're aware of it, you can request the company move you to a less heavily loaded server. Or, if the other site (which you generally have no visibility to) is misbehaving, it's possible to get them moved or banned.
But when you have a dedicated server, you have much more control over load issues. You can optimize your own site's HTML pages and programs, tune a database and carry out other activities that maximize throughput. Your users will see that as quicker page accesses and a more enjoyable user experience.
Five Biggest Job Hunting Mistakes and How to Avoid Them Looking for a job can be a challenging experience. Between the resume writing and the interviews you can find yourself exhausted and ready to throw in the towel prematurely. Stay the course until you find the job you want. While you are on your job-hunting journey, here are five big mistakes to avoid when job hunting. Steering clear of these mistakes could make finding a job much easier. One of the biggest mistakes that people make when they are job hunting is not looking in enough places for jobs. There is a certain level of diligence you need to maintain when you are searching for a job. Look in newspapers, online and ask around. Of course, there are boundaries you should follow when looking for a job. First of all only apply and interview for jobs that you think you would take if you were offered the position. Do not apply for jobs that you are not qualified at all for or jobs that you do not have a clear understanding of. When applying for jobs, it is important to have a resume that is update and professional looking. If you are not a good resume writer, look at examples online or find a professional to do your resume for you. Employers will take one look at a messy or unprofessional resume and rule you out without ever meeting you. It is also important to be sure that you resume can be found online. There are plenty of job sites that allow users to post resumes. Some sites even allow multiple resumes to be posted. This is a great place for employers to locate your resume and contact you without you actually applying for the job. Lying on your resume can eliminate you from being a job candidate immediately. If you stretch the truth about your experience or the type of jobs you have had in the past, employers will think that you are a liar. If employers think you are a lair they will not feel confident about hiring you because you have already compromised your integrity. Tell the truth about your work and educational history. No matter what people may tell you, an honest inexperienced candidate is better than a lying experienced candidate. Have faith that you will be able to prove your worthiness for the position you are applying for without making up half-truths. Be sure that your contact information is correct and that you respond when you are contacted. No matter how busy you are, you need to check your e-mail and phone messages on a regular basis. If you do not respond to a call about a job this is a sign that you do not need employment that badly. Employers will move on to the next candidate if you are slow getting back to them. Candidates that are not prepared for their interviews are typically eliminated from the search before the interview is over. If you are late for an interview you have a big huge mark against you as soon as you walk in the door. Not being dressed in professional attire also will leave the interview with a very bad impression of you before you even speak. If you show up without a pen or copies of your resume you look like you are unfamiliar with the interview process. This, in turn, makes it quite possible that you are unfamiliar with other work place procedures. A good job hunt can land you the job of your dreams. When you are settled into your new job you will be thankful that you took the time to search for a job the right way. Keeping your Career Intact During Maternity Leave Since, for the most part, maternity leave in this country is not paid, the reality of returning to work after having a baby comes much sooner than it does in most countries. No one wants to return to absolute chaos after they have the baby. Cut down on the stress of going back to work by being prepared. The length of your maternity leave can determine the amount of stress you return to. If you are willing and able it is a good idea to work as long as possible. Of course, everyone is not willing and able. For those that need a longer leave, they should put some plans in place to make the transition back to work smoother. How long you are on maternity leave varies. However, if you plan on returning after you have the baby, you do not want to return to a totally chaotic situation. That means that you want to have the needs of your career in tact before you take your maternity leave. Nothing should interfere with your new addition to the family. While you are bonding and spending time with your newborn you do not want the stress of the office hanging over your head. Lay the ground work so that you do not have to worry about the office while you are away. If you are the boss, you have a lot more stress to manage. It is important that you leave a responsible and capable person in charge of things in your absence. Start training that person to deal with the aspects of your job that they will have to handle as soon as you know you are pregnant. Nothing is more annoying than getting “How do I…” phone calls when you are on maternity leave. If your job is massive, split the responsibilities between two employees. You do not want to split up the tasks among too many people because this can lead to confusion. Two should be the maximum. Be sure to leave things in order. If you are not the most organized person, get that way when you find out you are pregnant. While you are on maternity leave anyone should be able to walk into your office and find what they are looking for in a very short amount of time. If things are messy there is more of a chance for things to go wrong. If you are one of those women that needs to have an extended maternity leave because of pregnancy complications, don’t fret. Enjoy your time offer and relax but also, if you can, try to stay on top of what is happening in your career field. Take an online class and brush up on skills. If you are not sure you want to return to your 9-5, research a new career. The Internet has made working from home a very real and popular option. Search for a job that will allow you to stay at home but also bring in some income. Some jobs, such as Computer Programming, can fetch a pretty penny. Do some research and find out what will suit you best. Work part time until you are ready to have the baby. While some women are eager to take their maternity leave, others are not so excited about it. If that is the case, talk to your employer about working part time until you are due. Some women work until they go into labor. There is no need to do that if you are uncomfortable but if you are having an uneventful pregnancy and love your job, why not? |