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Added for You - Key Factors to Find Resource BottleNeck in Linux Server Overloading
Substation operators, also known as switchmen, are in charge of the monitoring of the machinery that distributes electricity to residential, business and industrial areas. They operate in electrical substations monitoring equipment that increases or decreases voltage. They have to check the electric substations throughout the country to check charts, oil levels in equipment, temperature changes, load conditions, oil leaks, and any irregularities. In addition, switchmen have to operate switchboard levers to control the flow of electricity in and out of the substations. They are working closely with power generation operators and transmission engineers in order to anticipate and solve the change in power needs. If the power requirements change, substation operators have to start or stop distributing lines and switch them between the circuits.These workers work at the micro-level of power generation and distribution. Switchmen are also the oper
* note the usage of term "reported". I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.
II) Where's the probl
Branding versus search engine optimization is a marketing dilemma that larger companies will need to come to grips with on the Internet. Often companies will need to decide whether to promote their own brand name as their main keyword phrase or optimize for a more generic keyword phrase.For instance, one search engine report states that 1.3 million visitors per month search for the term "Best Buy." This same report states that the term "electronics" is searched for by 1.1 visitors per month. The obvious choice in this scenario is for Best Buy to optimize for their own brand name first and the word "electronics" second.But, take a competitor such as Fry's Electronics. Approximately 95,000 visitors search for the term "Fry's" every month, far short of those who search for "electronics". Does this mean Fry's Electronics (a partner with Outpost.com) should optimize for "electronics" first and
It's very common, despite of the affordable hardware, to have load issues on the server. There can be a number of reasons for high load on the server such as, inadequate RAM/CPU, slower hard disk drives, or just unoptimized software. This article will help you identify what's the bottleneck and where do you need to invest on. Please, however, do not take it as a replacement of professional advice/service. You should always seek professional service if you can afford the costs associated.
I) First of all, are you really in trouble?
Usually people look for load in control panels, using "uptime" or "top" command. You can probably execute the "uptime" command in your root shell to find out what's the load, but I would like you to use "top" for the moment (pretty please). This will help you identify how many CPUs are being reported*. You should be able to see something like cpu00, cpu01, etc. A load of ~1 for each cpu is reasonable. For example, you're fine if the load's 3.50 and you have 4 CPUs.
Another thing to consider while looking at the load via uptime or top, is to understand what it shows. For instance: (on a 2HT cpus server, reported as 4)
18:30:55 up 17 days, 5:17, 2 users, load average: 4.76, 2.97, 2.62
The first part (3.76) shows the load average in the last 5 mins, while the second (2.97) and third (2.62) shows averages of 10 and 15 mins respectively. It's probably a spike here which I wouldn't be too worried about (a bit carefree?), but if you are, then just read on!
Pretty happy about how you were able to identify that your server is really overloaded? Sorry to hear that, but you never know because sometimes servers are able to handle much more load than the load shown. The load averages aren't so accurate afterall and cannot always be the ultimate deciding factor. Confused? It was just some technical information you don't need to be so bothered about. Move ahead if your loads are something to worry over.
* note the usage of term "reported". I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.
II) Where's the proble
Incentives are meant to drive additional participation in your school fundraiser and generate more sales. The best incentives are those that have value in the eyes of the participants and will motivate them to give their best effort.Therefore, your reward program should offer quality items within a fairly structured setup that doesn’t cause unwanted behaviors such as excessive or unsafe competition.Who’s paying?
An important consideration is who ultimately pays for the rewards program. If you think about it, all rewards will come out of your net profit one way or another. Doesn’t it make sense to get the most for your money while at the same time offering the best overall incentives?Look for ways to save
Ask your supplier how their reward program works and whether there are any discounts for not utilizing their prize package. You might be able to not only save money, but also construct a better incentive program throu
I) First of all, are you really in trouble?
Usually people look for load in control panels, using "uptime" or "top" command. You can probably execute the "uptime" command in your root shell to find out what's the load, but I would like you to use "top" for the moment (pretty please). This will help you identify how many CPUs are being reported*. You should be able to see something like cpu00, cpu01, etc. A load of ~1 for each cpu is reasonable. For example, you're fine if the load's 3.50 and you have 4 CPUs.
Another thing to consider while looking at the load via uptime or top, is to understand what it shows. For instance: (on a 2HT cpus server, reported as 4)
18:30:55 up 17 days, 5:17, 2 users, load average: 4.76, 2.97, 2.62
The first part (3.76) shows the load average in the last 5 mins, while the second (2.97) and third (2.62) shows averages of 10 and 15 mins respectively. It's probably a spike here which I wouldn't be too worried about (a bit carefree?), but if you are, then just read on!
Pretty happy about how you were able to identify that your server is really overloaded? Sorry to hear that, but you never know because sometimes servers are able to handle much more load than the load shown. The load averages aren't so accurate afterall and cannot always be the ultimate deciding factor. Confused? It was just some technical information you don't need to be so bothered about. Move ahead if your loads are something to worry over.
* note the usage of term "reported". I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.
II) Where's the probl
JetBlue’s crisis response in the airline’s Valentine’s Day debacle has been superb. Because they are, by themselves, reactive, they miss crucial valuable elements: benchmarks and right timing to launch, creating uncertainty amidst too many unknowns.A proactive crisis management stance delivers predictable solutions. A chief reputation officer or CRO, however, fiercely protects this invaluable, yet fragile company asset, suggesting that a kairos (well timed and measured) response would reduce uncertainty and likely produce better, more predictable results.What were they thinking?The 2007 JetBlue Valentine’s Day crisis falls in the category: “what were they thinking?” Firstly, it was Valentine’s Day. Secondly, most of the travelers literally could not wait to get to their destinations to see their loved ones. Thirdly, and most importantly, any form of captivity for one, two, three, four, five, six, and in one case, nine hours on an air
Another thing to consider while looking at the load via uptime or top, is to understand what it shows. For instance: (on a 2HT cpus server, reported as 4)
18:30:55 up 17 days, 5:17, 2 users, load average: 4.76, 2.97, 2.62
The first part (3.76) shows the load average in the last 5 mins, while the second (2.97) and third (2.62) shows averages of 10 and 15 mins respectively. It's probably a spike here which I wouldn't be too worried about (a bit carefree?), but if you are, then just read on!
Pretty happy about how you were able to identify that your server is really overloaded? Sorry to hear that, but you never know because sometimes servers are able to handle much more load than the load shown. The load averages aren't so accurate afterall and cannot always be the ultimate deciding factor. Confused? It was just some technical information you don't need to be so bothered about. Move ahead if your loads are something to worry over.
* note the usage of term "reported". I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.
II) Where's the probl
"Every great romance and each big business deal begins with small talk. The key to successful small talk is learning how to connect with others, not just communicate with them." Dr. Bernardo J. Carducci, author of The Pocket Guide to Making Successful Small Talk: How to Talk to Anyone Anytime Anywhere About AnythingI recently read about a study of MBAs 10 years after they graduated. Researchers at Stanford School of Business found that Grade Point averages had no bearing on their success. Surprisingly, a major deciding factor was their ability to converse with others.The skill of connecting in short, casual conversations can make or break careers. Through these interactions we gather information and, hopefully, make a favourable impression. I'll confess that I am an introvert in extrovert's clothing. I can yammer away to people I know at gatherings such as conventions or training sessions, but I find it difficult to break the ice wit
Pretty happy about how you were able to identify that your server is really overloaded? Sorry to hear that, but you never know because sometimes servers are able to handle much more load than the load shown. The load averages aren't so accurate afterall and cannot always be the ultimate deciding factor. Confused? It was just some technical information you don't need to be so bothered about. Move ahead if your loads are something to worry over.
* note the usage of term "reported". I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.
II) Where's the probl
Negotiations and the people involved in them are going to be managed by someone. Managing a negotiation, all of the parties at the table, requires exceptional people skills to influence and motivate others. Honing these people skills is a sure way to improve your ability to negotiate successfully.The parties to a negotiation are people. People are unique individuals. To reach them through a debate of the issues requires that you present your case in terms they can readily understand. To effectively communicate with the other person you must understand the person. Not his or her argument but the "person". Researching the other party before the settlement conference can provide valuable details about their background, professional, personal and scholastic. Another way to learn about your adversary is to ask associates or common acquaintances about the person with whom you are about to meet. Finally, the time spent informally talking with the p
* note the usage of term "reported". I have used this term because a P4 CPU having HT technology will be reported as 2 even if you know your server has one CPU.
II) Where's the problem?
To identify the problem, you need to run a series of logical tests (Ok, it isn't as scary as it may sound). All you need is some free time, probably 30-45 mins, and root access to your server (expect no magic ;)). Ready to start? Let's go!
Note: Perform the checks multiple times, to reach a fine conclusion.
1. Check for RAM (most common bottleneck!).
# free -m
The output should look similar to this:
# free -m
total used free shared buffers cached Mem: 1963 1912 50 0 28 906 -/+ buffers/cache: 978 985 Swap: 1027 157 869
Any reaction like, "Ohh Gosh, almost all the RAM is used up."? Don't panic. Have a look at the buffers/cache that says "985" mb of RAM is still free in buffers. As long as you have enough memory in the buffers, and your server isnt't using much swap, you're pretty fine on RAM. Your server starts to use SWAP (much like Pagefile), which is part of your disk mapped as memory but it is comparatively very slow and can furthur slower down your system if you have a busy hard disk (which I doubt you wouldn't if you're using so much RAM). In short, at least 175mb available in buffers and no more than 200mb swap.
If RAM is the issue, you should probably look into optimizations on your PHP/Perl scripts, MySQL queries + server, and Apache.
2. Check if I/O (input/output) usage is excessive
If there are too many read/write requests on a single hard disk drive, it will become slow and you'll have to upgrade it to a faster drive (with more RPM and cache). The alternate option to a single faster drive is splitting the load onto multiple drives
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