So to calculate the bandwidth utilization we took the visits per month (1,273,0004,274) and divided it by 31. Giving us 41,064,654. We then multiplied that by 20, to give us the transfer in kilobytes per day of downstream waste, based on 20k of waste per visit. This gave us 821293080, which we then divided by 86400 which is the number of seconds in a day. This gives us 9505 kilobytes per second, but we want it in kilobits, so we multiply it by 8. Giving us 76040, finally we divide that by 1024 to give us the value in MBits/sec. Giving us 74Mbit/sec. One caveat with these calculations is that we do not factor in gzip compression. Using gzip compression, we could safely divide the bandwidth wasting figures by about 50%. Browser caching does not factor in the downstream values, as we are calculating the waste just on the HTML file. It could impact the upstream usage as not all objects maybe requested with every HTML request.
roflmao! I should've RTFA!
This is INSULTING! Who could eat this kind of total crap?
Where the F is Slashdot editors?
Those guys just decided per visit waste is 20kb? No reasoning, no nothing? Plus, they didn't see on pageviews, just visits... Uh 1 visit = many pageviews.
So let's do the right maths: 41,064,654 visits Site like Facebook would probably have around 30 or more pageviews per visit. let's settle for 30.
1,231,939,620 pageviews per day.
150 average length of url. Could be compressed down to 50. 100 bytes to be saved per pageview.
123,193,962,000 bytes of waste, 120,306,603Kb per day, or 1392Kb per sec.
In other words: 1392 * 8 = 11136Kbps = 10.875Mbps.
100Mbps guaranteed costs 1300$ a month... They are wasting a whopping 130$ a month on long urls...
It's irrelevantly small portion of the traffic, while at the scale of Facebook, it could save some traffic, but does not make any impact on the bottomline worthwhile the effort!
150 chars long url = 150 bytes VS 50KILObytes + Images of rest of the pageview....
I'm throwing out of my head that 50kilobytes for the full page text, but a pageview often runs at over 100kb.
So it's totally irrelevant if they can shave off the 100kb a whopping 150bytes.
Looking quickly and i don't see any sensible priced above 2gb sticks, also on newegg 4gb sticks cost insanely much.
I also wonder what motherboards, i'd like to know where i can buy myself an mobo which supports 12 sticks, that could bring me to 24gb which should suffice for now.
I'm currently using only 4Gb:( That being this 4Gb set is really expensive 1066Mhz DDR2 Corsair Dominator set and additional sets aren't readily available.
The tools has been here for some 10 years now, multithreading has existed a reaaally long time now, documentation was still lacking in late 90s, but running multiple threads is child's play now.
Like someone else stated, mostly programs aren't CPU bound, they spend most of their time waiting for data from HDD etc.
Applications benefitting from multiple cores have been multithreaded, or a lot of them. It's not a software paradigm limiting scalability.
Furthermore Windows 7 is MORE than capable of handling 8 cores, infact, Windows 7 probably starts to shine at 16 cores with it's SMP capabilities. Microsoft spent A LOT of time making sure there's that kind of scalability on Windows kernel.
I can't express enough how misinformed TFA writer is, and how clueless and ignorant he is. I'm SHOCKED that this kind of garbage is on Slashdot! Come on, even half-witted self-respecting geeks know about this stuff already better.
But that shows one important question: Why do we keep paying immensively high taxes (atleast here in Finland), yet are unable to get something as important as proper medical care?
Here, high taxes is often defended with medical care, yet it's totally crap, if you get doctor's appointment, they have less than 5minutes for you, and basicly rolls a dice to make a diagnosis, and gives you random medication.
Or more recent incident was that i were getting wisdom tooth removed, i got the appointment in several hours as emergency (the tooth cracked) and the operation was fast and painless, they pumped me so full of dope!
However: They did not warn me not to drive my car, NOR did warn about the immense pain i would be suffering from a few hours late. Thank god my friend happened to have red triangle painmeds, but even with them the pain got so hard through that my knees went soft everytime it struck through an very high dose of that red triangle pain med.
No warning, no prescriptions or anything, that really sucked... 2 days of agony even with those meds, which were so powerfull that almost everytime after taking one i fell asleep.
It was great how the Opera House was tied into the story, but this ending has a lot of annoying gaps.
How Gaius and 6 were 150,000 years in the future? What is Kara? Why did they smash their fleet? Why didn't the cylon base get damage from galactica practically jumping partially from inside of it?
In any case, this finale was rather good in the sense that it raised interesting questions, and tied some things together, despite the gaps in the plot (they ran out of airing time??) i highly enjoyed this finale!
Throttling to 5Kbps is evil, but QoS is a legit way to go, give priority for applications which need interactivity.
While the 5% of users might use the whole bw they've been sold to, they have all right to do so, and if you never intented to deliver, raise prices or lower speeds. In the end QOS can solve the problem to a degree, P2P doesn't need the highest priority, and at all times they can use their maximum BW which the provider has available.
By your description, you are The Man when it comes to this, he won't fire you, he is forced for more BW. He can't replace you because you refuse to teach your follower if it goes that route, and in effort he would loose the ISP business.
What stuns me, people are ALL UP FOR THROTTLING! Give me a break! Everyone here recommending it is either shooting themselves on their legs due to sheer ignorance or working for a anti-net neutrality party.
To really start saving BW, think about caching, you can rather easily implement transparect proxy using squid and simple routing rules, and your customers won't notice a thing even if WWW traffic is cached. On that size it sums up to quite considerable amount of data.
You can consider other caching methods too, but you can also implement QOS, prioritize SSH and WWW, and immediate increase in service quality achieved, given you use powerfull enough routers.
Any kind of throttling beyond mere QOS is plain and simply EVIL.
All modern OSs cache on available ram files accessed, depending on how often, when more ram is needed, most rarely used files are taken from the ram away.
So if you got PLENTY of ram, you don't even need to put them on/dev/shm, tho i'd recommend that.
16Gb even is rather cheap nowadays, even for servers. and it makes a huge difference especially if you deal with large data sets.
Use an alias / alteration of your name on your resumes, no lie heres, just put in the middle name initial into it or something, that helps a bit.
Secondly comes SEO: Register a domain using your name first-last.com, or get something.edu/first-last or something like that:)
On that website, open up an blog, talk about what ever you want to, but try to make it interesting, make it have steady stream of new postings, hell, write a 20 articles at a time, and schedule them to come out weekly, repeat & rinse twice a year. On the blog open an page at url first-last.com/about/first-last
h1 tag: "Last, First Biography" h2 tag: "Biography" containing full name, masked e-mail address (pref with your name in it!), born and in which city, basic stuff like that h2 tag interest h3 tags subinterest groups h2 tag: First Last in the media List of links of where people have spoken about you or you've written articles
Contain a link to that on frontpage below your picture on the left, also on every page footer 'Who is First Last?'
On those links put rel="me", also on the list of you in the media.
There's tons of more to it, but notice a patter, always trying to get your first or last name first:)
And gather some LinkLove, request your friends to link etc.
There you go:) Contact me if you want/need more help. WordPress is easy to get started, but remember to keep it up2date.
If they should you a computer, why do they need to blast their Logo on your screen too? It's not like you wouldn't be seeing their logo each and every day you use your computer.
I'd see it as annoying, then again, it's a very good branding technique.
Linux is ready for the desktop, and is likely still easier to install than Windows. But the desktop is even less relevant to a discussion about a server-side SQL injection attack.
You got to be kidding right? Please say you are kidding!
Linux is awfull crap on desktop IF you need to be productive, for procrastination (but not gaming) it's OK, but as a professional web dev, i get spooked if i have to use Linux as my workstation, most of the software i need is not there.
That being said, Linux is absolutely awesome as a server, rock solid, decent performance, very good customizeability, if you know your stuff, you can get hell of a lot of web request processing juice out of a linux box, even on old measly hardware.
Simple OO orientated access to a bit of everything, that's the true benefit of Phantom.
You are still missing the points completely, or maybe you are just trolling?
The increased intuitiviness is mostly on the development arena how i see Phantom, it will translate to some portions of the GUI definitely, and allow many neat things done which were harder on traditional OS.
The underlying technology has quite much nothing to do with what the user gets. Never heard of phones having office apps for example?;)
You are arguing a technical solution is bad on the basis of the irrelevant GUI. How hard it is to see that method of how things are done and accessed beneath the curtain has no correlation on the final GUI necessarily?
As for your O(n!) algo inefficiency: You take the algo, splice it on nice swallowable chunks, and all of sudden you have a nice small problem set algo;)/me works on huge datasets daily
Slashdot Mirror
So to calculate the bandwidth utilization we took the visits per month (1,273,0004,274) and divided it by 31. Giving us 41,064,654. We then multiplied that by 20, to give us the transfer in kilobytes per day of downstream waste, based on 20k of waste per visit. This gave us 821293080, which we then divided by 86400 which is the number of seconds in a day. This gives us 9505 kilobytes per second, but we want it in kilobits, so we multiply it by 8. Giving us 76040, finally we divide that by 1024 to give us the value in MBits/sec. Giving us 74Mbit/sec. One caveat with these calculations is that we do not factor in gzip compression. Using gzip compression, we could safely divide the bandwidth wasting figures by about 50%. Browser caching does not factor in the downstream values, as we are calculating the waste just on the HTML file. It could impact the upstream usage as not all objects maybe requested with every HTML request.
roflmao! I should've RTFA!
This is INSULTING! Who could eat this kind of total crap?
Where the F is Slashdot editors?
Those guys just decided per visit waste is 20kb? No reasoning, no nothing? Plus, they didn't see on pageviews, just visits ... Uh 1 visit = many pageviews.
So let's do the right maths:
41,064,654 visits
Site like Facebook would probably have around 30 or more pageviews per visit. let's settle for 30.
1,231,939,620 pageviews per day.
150 average length of url. Could be compressed down to 50. 100 bytes to be saved per pageview.
123,193,962,000 bytes of waste, 120,306,603Kb per day, or 1392Kb per sec.
In other words:
1392 * 8 = 11136Kbps = 10.875Mbps.
100Mbps guaranteed costs 1300$ a month ... They are wasting a whopping 130$ a month on long urls ...
So, the RTFA is total bullshit.
lol, i used to run Wallpaper Haven :)
People came to me complaining "it's not haven, it's heaven!" Ugh ... Didn't know what Haven means :D
Simple javascript compression would probably save them 1000 as much as shortening urls from 150 chars to 50.
it's actually not even 0.15Kb, it's 0.146kb >;)
and 100mil hits, 1kb saved = 95.36Gb saved.
You mixed up marketing, and in-use computer kilos, gigas etc. 1Kb !== 1000 bytes, 1Kb === 1024bytes :)
No, those guys wanting to ban black cars are saner people than writers of this article ...
The black car thing atleast is somewhat significant! For example, see when mythbusters tested white vs. black car.
handshake for the compression, and packet headers would probably become more than the potential benefits, not worth the effort.
It's irrelevantly small portion of the traffic, while at the scale of Facebook, it could save some traffic, but does not make any impact on the bottomline worthwhile the effort!
150 chars long url = 150 bytes VS 50KILObytes + Images of rest of the pageview....
I'm throwing out of my head that 50kilobytes for the full page text, but a pageview often runs at over 100kb.
So it's totally irrelevant if they can shave off the 100kb a whopping 150bytes.
Looking quickly and i don't see any sensible priced above 2gb sticks, also on newegg 4gb sticks cost insanely much.
I also wonder what motherboards, i'd like to know where i can buy myself an mobo which supports 12 sticks, that could bring me to 24gb which should suffice for now.
I'm currently using only 4Gb :( That being this 4Gb set is really expensive 1066Mhz DDR2 Corsair Dominator set and additional sets aren't readily available.
Indeed, all of those are total pain to use, but i guess they make good money, there's a lot of services like Rapidshare.
The tools has been here for some 10 years now, multithreading has existed a reaaally long time now, documentation was still lacking in late 90s, but running multiple threads is child's play now.
Like someone else stated, mostly programs aren't CPU bound, they spend most of their time waiting for data from HDD etc.
Applications benefitting from multiple cores have been multithreaded, or a lot of them. It's not a software paradigm limiting scalability.
Furthermore Windows 7 is MORE than capable of handling 8 cores, infact, Windows 7 probably starts to shine at 16 cores with it's SMP capabilities. Microsoft spent A LOT of time making sure there's that kind of scalability on Windows kernel.
I can't express enough how misinformed TFA writer is, and how clueless and ignorant he is. I'm SHOCKED that this kind of garbage is on Slashdot! Come on, even half-witted self-respecting geeks know about this stuff already better.
ROFLMAO! X)
Utopistic
But that shows one important question: Why do we keep paying immensively high taxes (atleast here in Finland), yet are unable to get something as important as proper medical care?
Here, high taxes is often defended with medical care, yet it's totally crap, if you get doctor's appointment, they have less than 5minutes for you, and basicly rolls a dice to make a diagnosis, and gives you random medication.
Or more recent incident was that i were getting wisdom tooth removed, i got the appointment in several hours as emergency (the tooth cracked) and the operation was fast and painless, they pumped me so full of dope!
However: They did not warn me not to drive my car, NOR did warn about the immense pain i would be suffering from a few hours late. Thank god my friend happened to have red triangle painmeds, but even with them the pain got so hard through that my knees went soft everytime it struck through an very high dose of that red triangle pain med.
No warning, no prescriptions or anything, that really sucked ... 2 days of agony even with those meds, which were so powerfull that almost everytime after taking one i fell asleep.
It was great how the Opera House was tied into the story, but this ending has a lot of annoying gaps.
How Gaius and 6 were 150,000 years in the future?
What is Kara?
Why did they smash their fleet?
Why didn't the cylon base get damage from galactica practically jumping partially from inside of it?
In any case, this finale was rather good in the sense that it raised interesting questions, and tied some things together, despite the gaps in the plot (they ran out of airing time??) i highly enjoyed this finale!
Throttling to 5Kbps is evil, but QoS is a legit way to go, give priority for applications which need interactivity.
While the 5% of users might use the whole bw they've been sold to, they have all right to do so, and if you never intented to deliver, raise prices or lower speeds. In the end QOS can solve the problem to a degree, P2P doesn't need the highest priority, and at all times they can use their maximum BW which the provider has available.
Proxies when properly configured are in no way evil, it's simple common sense to get the good stuff closer to where the good stuff is being used.
Mere image caching already does wonders, and more significant your userbase is the lower the TTL can be, and yet the more you have to gain.
You go already through the same ISPs network, if you are afraid of sniffing, you better change ISPs, get a VPN or wisen-up.
Or to get more BW.
By your description, you are The Man when it comes to this, he won't fire you, he is forced for more BW. He can't replace you because you refuse to teach your follower if it goes that route, and in effort he would loose the ISP business.
What stuns me, people are ALL UP FOR THROTTLING! Give me a break! Everyone here recommending it is either shooting themselves on their legs due to sheer ignorance or working for a anti-net neutrality party.
To really start saving BW, think about caching, you can rather easily implement transparect proxy using squid and simple routing rules, and your customers won't notice a thing even if WWW traffic is cached. On that size it sums up to quite considerable amount of data.
You can consider other caching methods too, but you can also implement QOS, prioritize SSH and WWW, and immediate increase in service quality achieved, given you use powerfull enough routers.
Any kind of throttling beyond mere QOS is plain and simply EVIL.
Hard drive cache. Do i need to say more?
All modern OSs cache on available ram files accessed, depending on how often, when more ram is needed, most rarely used files are taken from the ram away.
So if you got PLENTY of ram, you don't even need to put them on /dev/shm, tho i'd recommend that.
16Gb even is rather cheap nowadays, even for servers. and it makes a huge difference especially if you deal with large data sets.
Indeed, it's VERY powerfull when you see it constantly under your eyes. Where we used it, was very very effective aswell.
This needs +10 funny.
yea, TFA is so F hard.
They've started to filter torrent sites aswell?
Just wonder how much does the company networks actually filter out ... It's not like they could stop anything, just waste productivity.
Use an alias / alteration of your name on your resumes, no lie heres, just put in the middle name initial into it or something, that helps a bit.
Secondly comes SEO: Register a domain using your name first-last.com, or get something.edu/first-last or something like that :)
On that website, open up an blog, talk about what ever you want to, but try to make it interesting, make it have steady stream of new postings, hell, write a 20 articles at a time, and schedule them to come out weekly, repeat & rinse twice a year.
On the blog open an page at url first-last.com/about/first-last
h1 tag: "Last, First Biography"
h2 tag: "Biography"
containing full name, masked e-mail address (pref with your name in it!), born and in which city, basic stuff like that
h2 tag interest
h3 tags subinterest groups
h2 tag: First Last in the media
List of links of where people have spoken about you or you've written articles
Contain a link to that on frontpage below your picture on the left, also on every page footer 'Who is First Last?'
On those links put rel="me", also on the list of you in the media.
There's tons of more to it, but notice a patter, always trying to get your first or last name first :)
And gather some LinkLove, request your friends to link etc.
There you go :)
Contact me if you want/need more help. WordPress is easy to get started, but remember to keep it up2date.
If they should you a computer, why do they need to blast their Logo on your screen too? It's not like you wouldn't be seeing their logo each and every day you use your computer.
I'd see it as annoying, then again, it's a very good branding technique.
You got to be kidding right? Just shows how lost you are!
mysql_escape_string(), and done :)
or the cheap way around: str_replace("'", '', $parameter), or just add \ on front of the ', and wrap all your parameters into '', ie. column='value'
Linux is ready for the desktop, and is likely still easier to install than Windows. But the desktop is even less relevant to a discussion about a server-side SQL injection attack.
You got to be kidding right? Please say you are kidding!
Linux is awfull crap on desktop IF you need to be productive, for procrastination (but not gaming) it's OK, but as a professional web dev, i get spooked if i have to use Linux as my workstation, most of the software i need is not there.
That being said, Linux is absolutely awesome as a server, rock solid, decent performance, very good customizeability, if you know your stuff, you can get hell of a lot of web request processing juice out of a linux box, even on old measly hardware.
Simple OO orientated access to a bit of everything, that's the true benefit of Phantom.
You are still missing the points completely, or maybe you are just trolling?
The increased intuitiviness is mostly on the development arena how i see Phantom, it will translate to some portions of the GUI definitely, and allow many neat things done which were harder on traditional OS.
The underlying technology has quite much nothing to do with what the user gets. Never heard of phones having office apps for example? ;)
You are arguing a technical solution is bad on the basis of the irrelevant GUI. How hard it is to see that method of how things are done and accessed beneath the curtain has no correlation on the final GUI necessarily?
As for your O(n!) algo inefficiency: You take the algo, splice it on nice swallowable chunks, and all of sudden you have a nice small problem set algo ;) /me works on huge datasets daily