I'm getting really tired of people not using the correct prefixes, and even more on computer-savvy people not understanding the difference between bit and byte. Learn this list by heart or at least between 10^9 and 10^-9:
b = bit B = byte
E = exa = 10^18 P = peta = 10^15 T = tera = 10^12 G = giga = 10^9 M = mega = 10^6 k = kilo = 10^3 h = hekto = 10^2 D = deka = 10^1 d = deci = 10^-1 c = centi = 10^-2 m = milli = 10^-3 u = micro = 10^-6 n = nano = 10^-9 p = pico = 10^-12 f = femto = 10^-15 a = atto = 10^-18
Those writing "mb" for megabyte, are actually writing "milli-bit". How do I split a single bit into one thousand pieces? Is that what micro processors is all about?;)
To avoid any discussion between k=1000 and k=1024, please turn to www.iec.org and read about binary prefixes (kibi-, mebi- et.c.).
Driving around in a station wagon "full" of equipment sounds like ancient times. I took a course in "mobility and wireless networks" at my University (Swedish)), where a representative from Ericsson was invited and demo:ed a device that looked exactly like a normal cell phone.
He hooked it up to a laptop via serial and USB and got all kinds of data from the GSM/GPRS network.
It was also very easy to inject malformatted data in the GSM/GPRS network and simply make it crash, he told us. The networks in the area where they develop it were prone to be down...;)
Here you have a link to the official website (http://www.ericsson.com/tems/gsm/pocket-gsm.shtml ) along with a picture of it. He told us it cost about US$20.000 to get hold of one of them, and many phone operators in Europe use them.
Our ISP Norrnod.se are using an excellent concept:
They allow everyone to connect (for free, except that you have to get the physical fibres yourself - or rent (cheaply) those already present in the city!) to their DMZ and all traffic within it is for FREE, but all traffic leaving the DMZ, out to the leased line (95 Mbps if I recall correctly) that leads to the nearest Internet Exchange Point is what "you" pay for - since that is what renders the cost.
To keep track of "our" users (we built our own network in our block), the ISP provides us with daily statistics of the usage over the leased line
- no statistics over internal traffic is made, thereby is it very simple for us to keep our usage under the amount we bought on the leased line.
Excellent, simply!
ps. Did I mention we have a full 100 Mbps all over town and 2,5-10 Gbps links to other cities via SUNET (within the Free area!)?
Wireless is cute, but I still think that wherever possible, cheap fibre optic cables should be used.
3M's Volition Series is an excellent example -- we used it to get 100 Mbps Internet in our block.
Combine fast connectivity with a local DMZ to which it is for free to connect and all data traffic within the DMZ is free, and you've got a success on your hands.
Use wireless only where it is impossible to install fibre optics, but you will be amazed over how many tubes/pipes already present under roads et.c. which can be used with a permit!
As I have written before here on/., we already have a MAN in Umeå, Sweden. We are currently enjoying 100 Mbps full duplex per fibre optics to our homes.
On http://www.acc.umu.se/~tfytbk/mattgrand [57.000 visitors], I describe the fibre optical network we ourselves installed in my parent's block and it is connected to the city's MAN.
The smart thing is that the hub in the entire MAN is a "DMZ" to which it is FREE to connect for anyone (you have to either provide your own router or rent a port in someone elses router).
ALL traffic within the DMZ is for FREE and the only thing that cost is capacity out to the rest of the world (since someone has to pay for the connection to the closest Internet Exchange Point).
The concept is excellent! They have upgraded the backbone in the DMZ to 10 Gbps and lots of equipment is 1 Gbps, amongst others the ISP (Bonet) that we are using. We certainly enjoy high speed, especially within our city (100.000 inhabitants), where I always get ~4000 kB/s sustained speed! (for example from my appartment, 6 km (4 miles) from my parent's house, to my server which I left back home when I moved here.)
I really think that this concept should be considered to boost the public's interest in connecting to the MAN - here in Umeå we have around 70% (!) of all households connected to this fabulous network - without doubt I live in the 'most connected' city in the world!
The fibre optics were dug during the 90s by our community owned power company, that were smart enough to put down single mode fibres when they upgraded the hot water pipelines that provides the city with heat.
We consider the use of graphical passwords, passwords based on pictures and drawings rather than on text, from a broad
perspective. Results from memory research are used as a basis for a discussion of what properties a password system
should have to provide passwords that are hard to guess but easy to remember. These ideas are used to guide the design of
a large number of prototype systems, which are described in detail. The security properties of the different systems are
evaluated, and the most promising candidates are singled out.
We also discuss how the technique of fuzzy commitment can be used to create secure fuzzy password systems --- systems
that allow the user to make small errors when entering her password --- and show that such systems must be carefully
designed to avoid leaking information to the attacker.
We evaluate the systems through user testing and show that while visual passwords are not a miracle cure for all problems
with passwords, they still might be a useful complement to traditional password systems.
I'm enjoying 100 Mbps connection to the Internet, so I can download movies and stuff that way (only legal trailers, of course!) and have a 15 m SVHS-cable to my TV and SVHS video.
I use a Hollywood plus to play my DVDs and a ATI All In Wonder 128 PRO to play DivX [trailers...] on the TV. The ATI-card is connected to the Cable-TV-outlet, so I can watch TV on my 21" monitor.
I also added an extra PCI graphics card and connected a 19" monitor to it, hereby using dual desktops on Windows 2000.
I find myself most of the time running DivX/MPEG2-movies/trailers on the 19" monitor while I work/surf on the 21" monitor. I simply don't want to sit passively and just 'watch TV/movie'. I get bored in a few minutes!
Where am I getting at with this?
-Well, for one, running a DVD-player etc from a computer is nothing for non-techies. There is always something that causes problems, such as buggy drivers or lockups (which rarely happens with W2k, actually).
My five cents: Stick to Cat5(e) in the house,
but leave separate conduits with nothing but a wire in them (very hard to pull additional cables when other cables are present).
The Uplink
Where I live, we have 100 Mbps connections to the entire city, and also to the Internet.
It was posted on/. a few weeks ago, but feel free to see how a real network is made on 100 Mbps@home (50 000+ visitors already!).
It could only be in America such a STUPID device was invented. The negative impact on the Earth is huge when you (as I read in a few posts):
Start your car in advance during cold days.
Start your car in advance during hot days.
The emissions from a car running on idle are just huge, especially in cold temperature.
You should get an electric engine heater and plug it in an electrical socket or an "Ebersprecher" - a small device that runs on fuel that heats up the car (yes, it also emits CO2, but way less than a cold car on which the catalyzer isn't warm)
Those who start the A/C to get the car cool - ARE YOU FOR REAL?! I was in Death Valley this summer with +120F in the shade (+50C) and we didn't leave the car running all the time.
Kenny Bräck did unfortunately not win the Cart Championship:
http://www.cart.com/
SURFERS PARADISE, Australia--Cristiano da Matta won the battle and Gil de Ferran won the war as da Matta captured the Honda Indy 300 today and the reigning CART champion finished fourth to clinch thetitle for a second straight year.
Okay, I didn't notice that the counter still worked - we're experimenting on how the webserver handles the load, that's what bothered me. Sorry about the stupid remark about (C) - you were obviously just trying to help and I appreciate it!
We've had in the area of 1 hit per 3 seconds the last 24 hours and the webserver is running smoothly, AFAIK.
We crossed several streets, but did not dig across any of them.
We dug a hole on each end of the street and on one side a machine was inserted which pressed a steel-rod of some kind under the pavement (some 60 cm or 2 feet). Very clever indeed!
Total distance was in the area of 15 metres (45 feet), but those machines can do further distances than that easily.
The machine was rented from some kind of specialist-company who does stuff like that for a living.
Hey, sounds pretty damned cool about your network project there!!!
Thanks!
Except some things don't make any sense...I'm confused:
All-rightie. I'll try to help you out!
$8/mo sure, but $2000 INSTALLATION FEE!Christ, that's insanely high.
Wow.How rich are your neighbours?? =)
As I mentioned in the article, most of them extended their loans on their houses. The local banks had no problem accepting
that, as far as I know.
And you're saying that 60 of 62 houses signed up to drop $1600+ just
to get some fast internet?Damn what neighbourhood do you live in?? =)
Where do I sign up? =P
Yep. My dad did an excellent job in convincing those who didn't accept it right away.
I think that you may have confused a lot between MBps (bytes/sec) and
Mbps (bits/sec)...
Nope. Read it carefully, and you'll see I've tried my best to not confuse them; Mbps = megabit per second, MBps = megabyte
per second.
(because I soon found out that a normal harddisk isn't faster than
about 30-40 Mbps, even though it is connected with U-DMA-66 etc. Try yourself to
transfer files between two harddrives and divide the amount of data in megabits
with the time in seconds!)... connections and 25-40 Mbps is possible most of
the time - that means it is their single harddisk limiting the speed!
U-DMA-66 promises speeds of up to 66 MBps (or about 660 Mbps, if we simplify one byte to 10 bits... 528 Mbps@8
bits/byte just for the sake of it). That can be acheived when the data resides in the cache-memory of the harddrive, but for
sustained transfers of several hundred megabyte files (on a defragmented drive), that, in conjunction with shipping the data
to/from the Ethernet controller, will severely limit the speed.
The measurements were made on a dual Intel Celeron 366 MHz with NT 4 SP4 (or maybe 6, I can't remember). It may have
been overclocked to 550 MHz, can't remember that either, which *may* have confused the IDE-controller, but since the
system bus was running at 100 MHz (66x5.5 -> 100x5.5 on such a Celeron), the IDE-controller shouldn't have been
overclocked at all.
Since I build and sell computers (one or so per month) in my spare time, I test lots and lots of different hardware on different
OS'es. I've heard friends claiming peaks of about 30-50 MBps, especially now with U-DMA-100-drives and so on (which
were non-existent when I benchmarked the network), but during actual file-transfers I very rarely see figures (now) above 5-7
MBps (~50-70 Mbps) (I don't waste my time with benchmark-programs, just actual filetransfers of for example
MPEG-movies) since one drive has to write the data, and when I made the benchmarking, the general harddisks managed
about 3-4 MBps (~30-40 Mbps) when one disk had to write the data.
The numbers above are for a single IDE drive, connected to a motherboard IDE-controller, preferrably alone on the
IDE-cable to not have to compete with another IDE-unit. Of course the drives were defragmented before testing!
I'm fairly certain you're confused here.My hard drives here get 30MB/sec on
the 5400rpm drives and 40MB/sec on the 7200rpm drives.Even my older 10gig
5400rpm drive can get 15MB/sec.That's 120Mbit/sec.You were also
talking about using UDMA66 citing that as bits per second (UDMA66 is BYTES per
second), and talking about using a fasttrak66 controller with a new 7200rpm drive, you'll
easily get at LEAST 20MB/sec off it, if not 30-35MB/sec.Is there something I'm
not following here?
Perhaps NT4 has lousy drivers for my FastTrak66, but now I have Windows 2000 Server on the box and it seems about as
fast (slow?) as before, but I haven't wasted my time benchmarking it, more than to my appartment - yes I moved out in January
2001 - where I also have a 100 Mbps connection and I'm getting about 4 MBps (~40 Mbps) on large file transfers between
the appartment and back home where the server is. The physical distance is roughly 7 km (4.3 miles) but only two
Ethernet-hops.;)
I recently have done benchmarks on my drives here (Western Digital 20GB 5400rpm
and a 40GB IBM 7200rpm... Even on random file reads I could clear 10MB/sec almost
always, and on non-fragmented files read rates were easily > 20MB/sec) and got those
numbers.Bandwidth off of a hard drive of 40Mbit/sec (5MByte/sec?), I haven't
seen that since the days of the pentium class computers.
Sounds nice if you got those numbers on actual transfers and not on a silly benchmarking program.
Also 1200MB/day?Damn, I do more than that on my cable line
=).I know that I'm not exactly your average user, but with 60 people
online that's only 20MB/day, and that can run out pretty quickly with just some
gaming and some web browsing.I was stuck with 25MB/day avg when I
was in university for a term, and BOY did that suck.I can't see them doing less
than 1200MB/day on average.I can easily see double
that.Especially if they have on average more than 1 computer online per
house, and considering how a tech savvy group would be required to do this in the first
place, they'll easily clear 1200MB/day.I can see double that, easy.Seems
very small, no?
The limit is only on traffic leaving our city to the rest of the Internet, almost all traffic within Sweden is not included in those 20
MB per day. As long as no one is trading much files outside Sweden or forgets P2P-software running for days, we're doing
fine.
Since many doesn't use those 20 MB per house per day, a few of us can easily use 500 MB per day occasionally without any
problem, but since "all" files are accessible within Sweden in one way or another, there is almost no need to access slow
servers (1-100 kBps) outside Sweden...
Hey, I don't doubt that this happened, and damn that's a
sweet sweetSWEET connection speed, getting 100mbit/sec to a large
network of people... DAMN!! =) I envy you! =)
You don't need to doubt it either. It's for real. Check out http://www.norrnod.se for yourself to see the spec's for the ISP.
Oh well.. Chances of that happening around where I live
are..oh... NIL!However it might not be impossible to set up a
wireless network (on a street of 78 houses MAYBE I could find 10 that would pay more
than $200 to set up cheaper faster internet access).But then getting the ISP that
would be cheaper than just simple cable would be very hard to find. You can get
cable access here for $35USD/mo, so with 10 people at $50USD/mo is $500, which I
suppose could grab a decent 2mbit connection for... But since cable can give up to
300kbit/s download and most of the problem is on the other end being slow, there's little
incentive to do so. =(
It's a pity "they" don't realise that a big DMZ is a necessary thing to have in each city. It may be expensive to get it up and
running, but...,)
We're lucky they dig central heating in the entire city here and have the common sense to put fibre cables when they are
upgrading the pipes!
Slashdot Mirror
Do you really believe we still will destroy the atmosphere by burning fossile fuels in 2012?
I certainly hope we don't!
The nature certainly hope we don't!
I'm getting really tired of people not using the correct prefixes, and even more on computer-savvy people not understanding the difference between bit and byte. Learn this list by heart or at least between 10^9 and 10^-9:
;)
b = bit
B = byte
E = exa = 10^18
P = peta = 10^15
T = tera = 10^12
G = giga = 10^9
M = mega = 10^6
k = kilo = 10^3
h = hekto = 10^2
D = deka = 10^1
d = deci = 10^-1
c = centi = 10^-2
m = milli = 10^-3
u = micro = 10^-6
n = nano = 10^-9
p = pico = 10^-12
f = femto = 10^-15
a = atto = 10^-18
Those writing "mb" for megabyte, are actually writing "milli-bit". How do I split a single bit into one thousand pieces? Is that what micro processors is all about?
To avoid any discussion between k=1000 and k=1024, please turn to www.iec.org and read about binary prefixes (kibi-, mebi- et.c.).
As usual, I'll post the URL to the page where my parent's 100 Mbps FTTH project is described.
It has been slashdotted before (it could stand the load, thanks to http://www.acc.umu.se) and have had over 70 000 visitors (not all unique).
Anyway, the page is at http://www.acc.umu.se/~tfytbk/mattgrand and on the page in my signature.
Did you mean DF0:?
Old, but here it goes:
100 Mbps FTTH in my home.
Driving around in a station wagon "full" of equipment sounds like ancient times. I took a course in "mobility and wireless networks" at my University (Swedish)), where a representative from Ericsson was invited and demo:ed a device that looked exactly like a normal cell phone.
He hooked it up to a laptop via serial and USB and got all kinds of data from the GSM/GPRS network.
It was also very easy to inject malformatted data in the GSM/GPRS network and simply make it crash, he told us. The networks in the area where they develop it were prone to be down... ;)
Here you have a link to the official website (http://www.ericsson.com/tems/gsm/pocket-gsm.shtml ) along with a picture of it. He told us it cost about US$20.000 to get hold of one of them, and many phone operators in Europe use them.
http://www.acc.umu.se/~tfytbk/mattgrand has a description of our real 100 Mbps Internet connected network (access also at 100 Mbps!)...
We have this kind of limits already in our 100 Mbps Internet access@home.
There also is a destinction between the "internal" network (citywide) and the rest of the world.
See my page (already hit by /. a few months ago, 62 000 visitors) at http://www.acc.umu.se/~tfytbk/mattgrand.
Our ISP Norrnod.se are using an excellent concept:
They allow everyone to connect (for free, except that you have to get the physical fibres yourself - or rent (cheaply) those already present in the city!) to their DMZ and all traffic within it is for FREE, but all traffic leaving the DMZ, out to the leased line (95 Mbps if I recall correctly) that leads to the nearest Internet Exchange Point is what "you" pay for - since that is what renders the cost.
Schematic over the DMZ, where you can see several 10 Gbps links
To keep track of "our" users (we built our own network in our block), the ISP provides us with daily statistics of the usage over the leased line - no statistics over internal traffic is made, thereby is it very simple for us to keep our usage under the amount we bought on the leased line.
Excellent, simply!
ps. Did I mention we have a full 100 Mbps all over town and 2,5-10 Gbps links to other cities via SUNET (within the Free area!)?
My usual standpoint: Fibre optics is the only way to go!
Wireless is cute, but I still think that wherever possible, cheap fibre optic cables should be used.
3M's Volition Series is an excellent example -- we used it to get 100 Mbps Internet in our block.
Combine fast connectivity with a local DMZ to which it is for free to connect and all data traffic within the DMZ is free, and you've got a success on your hands.
Use wireless only where it is impossible to install fibre optics, but you will be amazed over how many tubes/pipes already present under roads et.c. which can be used with a permit!
Read my sig!
As I have written before here on /., we already have a MAN in Umeå, Sweden. We are currently enjoying 100 Mbps full duplex per fibre optics to our homes.
On http://www.acc.umu.se/~tfytbk/mattgrand [57.000 visitors], I describe the fibre optical network we ourselves installed in my parent's block and it is connected to the city's MAN.
The smart thing is that the hub in the entire MAN is a "DMZ" to which it is FREE to connect for anyone (you have to either provide your own router or rent a port in someone elses router).
ALL traffic within the DMZ is for FREE and the only thing that cost is capacity out to the rest of the world (since someone has to pay for the connection to the closest Internet Exchange Point).
The concept is excellent! They have upgraded the backbone in the DMZ to 10 Gbps and lots of equipment is 1 Gbps, amongst others the ISP (Bonet) that we are using. We certainly enjoy high speed, especially within our city (100.000 inhabitants), where I always get ~4000 kB/s sustained speed! (for example from my appartment, 6 km (4 miles) from my parent's house, to my server which I left back home when I moved here.)
I really think that this concept should be considered to boost the public's interest in connecting to the MAN - here in Umeå we have around 70% (!) of all households connected to this fabulous network - without doubt I live in the 'most connected' city in the world!
The fibre optics were dug during the 90s by our community owned power company, that were smart enough to put down single mode fibres when they upgraded the hot water pipelines that provides the city with heat.
A note on prefixes:
m = milli
M = mega
...and I guess the latter is what you intended - MHz for megahertz.
Abstract
We consider the use of graphical passwords, passwords based on pictures and drawings rather than on text, from a broad perspective. Results from memory research are used as a basis for a discussion of what properties a password system should have to provide passwords that are hard to guess but easy to remember. These ideas are used to guide the design of a large number of prototype systems, which are described in detail. The security properties of the different systems are evaluated, and the most promising candidates are singled out.
We also discuss how the technique of fuzzy commitment can be used to create secure fuzzy password systems --- systems that allow the user to make small errors when entering her password --- and show that such systems must be carefully designed to avoid leaking information to the attacker.
We evaluate the systems through user testing and show that while visual passwords are not a miracle cure for all problems with passwords, they still might be a useful complement to traditional password systems.
http://www.cs.umu.se/~niklasf/exjobb/
I recommend you check out my classmate's Master Thesis on http://www.cs.umu.se/~niklasf/exjobb/.
He is currently working at RSA Labs, so I imagine he knows what he is talking about! :)
I can't resist to once more point out that we are accessing the Internet per 100 Mbps full duplex fibre link to our home.
I have a very detailed description on this page on how we installed a very high-tech network in our entire block.
The page have been slashdotted once before, so the visitor counter have passed 52 000!
Best regards, Tomas
I'm enjoying 100 Mbps connection to the Internet, so I can download movies and stuff that way (only legal trailers, of course!) and have a 15 m SVHS-cable to my TV and SVHS video.
I use a Hollywood plus to play my DVDs and a ATI All In Wonder 128 PRO to play DivX [trailers...] on the TV. The ATI-card is connected to the Cable-TV-outlet, so I can watch TV on my 21" monitor.
I also added an extra PCI graphics card and connected a 19" monitor to it, hereby using dual desktops on Windows 2000.
I find myself most of the time running DivX/MPEG2-movies/trailers on the 19" monitor while I work/surf on the 21" monitor. I simply don't want to sit passively and just 'watch TV/movie'. I get bored in a few minutes!
Where am I getting at with this?
-Well, for one, running a DVD-player etc from a computer is nothing for non-techies. There is always something that causes problems, such as buggy drivers or lockups (which rarely happens with W2k, actually).
My five cents: Stick to Cat5(e) in the house, but leave separate conduits with nothing but a wire in them (very hard to pull additional cables when other cables are present).
The UplinkWhere I live, we have 100 Mbps connections to the entire city, and also to the Internet.
It was posted on /. a few weeks ago, but feel free to see how a real network is made on 100 Mbps@home (50 000+ visitors already!).
It could only be in America such a STUPID device was invented. The negative impact on the Earth is huge when you (as I read in a few posts):
The emissions from a car running on idle are just huge, especially in cold temperature.
You should get an electric engine heater and plug it in an electrical socket or an "Ebersprecher" - a small device that runs on fuel that heats up the car (yes, it also emits CO2, but way less than a cold car on which the catalyzer isn't warm)
Those who start the A/C to get the car cool - ARE YOU FOR REAL?! I was in Death Valley this summer with +120F in the shade (+50C) and we didn't leave the car running all the time.
Take care of the Earth. Please!
Kenny Bräck did unfortunately not win the Cart Championship:
http://www.cart.com/
SURFERS PARADISE, Australia--Cristiano da Matta won the battle and Gil de Ferran won the war as da Matta captured the Honda Indy 300 today and the reigning CART champion finished fourth to clinch thetitle for a second straight year.
Okay, I didn't notice that the counter still worked - we're experimenting on how the webserver handles the load, that's what bothered me. Sorry about the stupid remark about (C) - you were obviously just trying to help and I appreciate it!
We've had in the area of 1 hit per 3 seconds the last 24 hours and the webserver is running smoothly, AFAIK.
Thanks and have a nice day!
/Tomas
We crossed several streets, but did not dig across any of them.
We dug a hole on each end of the street and on one side a machine was inserted which pressed a steel-rod of some kind under the pavement (some 60 cm or 2 feet). Very clever indeed!
Total distance was in the area of 15 metres (45 feet), but those machines can do further distances than that easily.
The machine was rented from some kind of specialist-company who does stuff like that for a living.
/Tomas, author
Sean Graham wrote:
... connections and 25-40 Mbps is possible most of
;)
,)
Hey, sounds pretty damned cool about your network project there!!!
Thanks!
Except some things don't make any sense...I'm confused:
All-rightie. I'll try to help you out!
$8/mo sure, but $2000 INSTALLATION FEE!Christ, that's insanely high.
Wow.How rich are your neighbours?? =)
As I mentioned in the article, most of them extended their loans on their houses. The local banks had no problem accepting
that, as far as I know.
And you're saying that 60 of 62 houses signed up to drop $1600+ just
to get some fast internet?Damn what neighbourhood do you live in?? =)
Where do I sign up? =P
Yep. My dad did an excellent job in convincing those who didn't accept it right away.
I think that you may have confused a lot between MBps (bytes/sec) and
Mbps (bits/sec)...
Nope. Read it carefully, and you'll see I've tried my best to not confuse them; Mbps = megabit per second, MBps = megabyte
per second.
(because I soon found out that a normal harddisk isn't faster than
about 30-40 Mbps, even though it is connected with U-DMA-66 etc. Try yourself to
transfer files between two harddrives and divide the amount of data in megabits
with the time in seconds!)
the time - that means it is their single harddisk limiting the speed!
U-DMA-66 promises speeds of up to 66 MBps (or about 660 Mbps, if we simplify one byte to 10 bits... 528 Mbps@8
bits/byte just for the sake of it). That can be acheived when the data resides in the cache-memory of the harddrive, but for
sustained transfers of several hundred megabyte files (on a defragmented drive), that, in conjunction with shipping the data
to/from the Ethernet controller, will severely limit the speed.
The measurements were made on a dual Intel Celeron 366 MHz with NT 4 SP4 (or maybe 6, I can't remember). It may have
been overclocked to 550 MHz, can't remember that either, which *may* have confused the IDE-controller, but since the
system bus was running at 100 MHz (66x5.5 -> 100x5.5 on such a Celeron), the IDE-controller shouldn't have been
overclocked at all.
Since I build and sell computers (one or so per month) in my spare time, I test lots and lots of different hardware on different
OS'es. I've heard friends claiming peaks of about 30-50 MBps, especially now with U-DMA-100-drives and so on (which
were non-existent when I benchmarked the network), but during actual file-transfers I very rarely see figures (now) above 5-7
MBps (~50-70 Mbps) (I don't waste my time with benchmark-programs, just actual filetransfers of for example
MPEG-movies) since one drive has to write the data, and when I made the benchmarking, the general harddisks managed
about 3-4 MBps (~30-40 Mbps) when one disk had to write the data.
The numbers above are for a single IDE drive, connected to a motherboard IDE-controller, preferrably alone on the
IDE-cable to not have to compete with another IDE-unit. Of course the drives were defragmented before testing!
I'm fairly certain you're confused here.My hard drives here get 30MB/sec on
the 5400rpm drives and 40MB/sec on the 7200rpm drives.Even my older 10gig
5400rpm drive can get 15MB/sec.That's 120Mbit/sec.You were also
talking about using UDMA66 citing that as bits per second (UDMA66 is BYTES per
second), and talking about using a fasttrak66 controller with a new 7200rpm drive, you'll
easily get at LEAST 20MB/sec off it, if not 30-35MB/sec.Is there something I'm
not following here?
Perhaps NT4 has lousy drivers for my FastTrak66, but now I have Windows 2000 Server on the box and it seems about as
fast (slow?) as before, but I haven't wasted my time benchmarking it, more than to my appartment - yes I moved out in January
2001 - where I also have a 100 Mbps connection and I'm getting about 4 MBps (~40 Mbps) on large file transfers between
the appartment and back home where the server is. The physical distance is roughly 7 km (4.3 miles) but only two
Ethernet-hops.
I recently have done benchmarks on my drives here (Western Digital 20GB 5400rpm
and a 40GB IBM 7200rpm... Even on random file reads I could clear 10MB/sec almost
always, and on non-fragmented files read rates were easily > 20MB/sec) and got those
numbers.Bandwidth off of a hard drive of 40Mbit/sec (5MByte/sec?), I haven't
seen that since the days of the pentium class computers.
Sounds nice if you got those numbers on actual transfers and not on a silly benchmarking program.
Also 1200MB/day?Damn, I do more than that on my cable line
=).I know that I'm not exactly your average user, but with 60 people
online that's only 20MB/day, and that can run out pretty quickly with just some
gaming and some web browsing.I was stuck with 25MB/day avg when I
was in university for a term, and BOY did that suck.I can't see them doing less
than 1200MB/day on average.I can easily see double
that.Especially if they have on average more than 1 computer online per
house, and considering how a tech savvy group would be required to do this in the first
place, they'll easily clear 1200MB/day.I can see double that, easy.Seems
very small, no?
The limit is only on traffic leaving our city to the rest of the Internet, almost all traffic within Sweden is not included in those 20
MB per day. As long as no one is trading much files outside Sweden or forgets P2P-software running for days, we're doing
fine.
Since many doesn't use those 20 MB per house per day, a few of us can easily use 500 MB per day occasionally without any
problem, but since "all" files are accessible within Sweden in one way or another, there is almost no need to access slow
servers (1-100 kBps) outside Sweden...
Hey, I don't doubt that this happened, and damn that's a
sweet sweetSWEET connection speed, getting 100mbit/sec to a large
network of people... DAMN!! =) I envy you! =)
You don't need to doubt it either. It's for real. Check out http://www.norrnod.se for yourself to see the spec's for the ISP.
Oh well.. Chances of that happening around where I live
are..oh... NIL!However it might not be impossible to set up a
wireless network (on a street of 78 houses MAYBE I could find 10 that would pay more
than $200 to set up cheaper faster internet access).But then getting the ISP that
would be cheaper than just simple cable would be very hard to find. You can get
cable access here for $35USD/mo, so with 10 people at $50USD/mo is $500, which I
suppose could grab a decent 2mbit connection for... But since cable can give up to
300kbit/s download and most of the problem is on the other end being slow, there's little
incentive to do so. =(
It's a pity "they" don't realise that a big DMZ is a necessary thing to have in each city. It may be expensive to get it up and
running, but...
We're lucky they dig central heating in the entire city here and have the common sense to put fibre cables when they are
upgrading the pipes!
Anyways, kudos to getting this done!
Thanks, Mate!
/Tomas
Ehhh... Heard of Copyright before?
/Tomas