If it didn't say it was 100% finished, then it wasn't finished. This can happen when there is no complete copy of the file currently being shared. Leaving it running overnight doesn't matter, because if nobody currently connected has all the parts, it won't finish until someone with a full copy of the file connects.
Everything from 70 through 126 is still unassigned. That's over 50 blocks, with 16 million addresses each! And China is only using up two class A blocks right now! The best part is that (due to clueless administrators), they're already pre-blocked! (Some admins block this range because they're "not assigned", and never notice when they do get assigned. One of them recently did get assigned, and apparently this was a real big problem.)
The real problem is keeping the routing table size in control, which is why you need big blocks assigned by geographical area, rather than the old way, which was a bunch of random class B and C blocks assigned in sequential order with no regard to routing issues.
The best part is the ones that still look like Windows 98 dialogs, five years and three versions of Windows later. I guess they figure that their prime market is people who don't even know enough to get rid of that crashy toy of an operating system.
Correction: I just remembered that the second computer doesn't even have to have a real IP. It can be behind a firewall or NAT, just as long as it can communicate quickly (like 100MBit Ethernet) with the unfirewalled machine.
BitTorrent needs upload limiting BADLY. Saturation of the uplink leads to ACK starvation, which kills network performance.
As for your home box, if you have a firewall or especially NAT, you will see seriously impaired BT performance. People who have firewalls or NAT have to make their connections outbound only (unless it's been set up to forward the correct port inbound), which means they can only send or receive data to/from people with a real IP and no firewall, not to other firewallers or NATters. Less people to send data to, less chance to get karma with the tracker to get blocks assigned.
The coolest trick is to have two computers, each with a real, unfirewalled IP address connected to an ethernet switch between them and the uplink, then download a torrent with about a dozen users (too many users and this doesn't work, too few and there's not enough bandwidth to make a difference). When your two computers get assigned to each other and send crap to each other at 400 MBytes/sec, you suddenly get beaucoup karma with the tracker.
Gee, and I thought it was bad that the Mac version apparently doesn't close the downloaded file after you close its window. (You have to quit from the app.)
A.torrent file is esentially info about the file and where the tracker is, plus a bunch of block checksums. This allows you to resume a torrent, or use a complete file to seed a torrent with no complete uploaders. If the file was corrupted, there are only two times that could have happened: either before the.torrent file was created, or after it got saved to your disk.
Or perhaps you cancelled the torrent download before it was finished. BT always creates a full size file to store blocks into, and because they're randomly assigned, it needs to allocate the disk space from the start. All you have to do is re-run the.torrent file with what you downloaded and it will verify it for you, even if nobody is still sharing that file.
But the brilliant innovation in this case was that by sawing out a piece of PCB, he not only got a surface mount chip mounted to a board without having to do SMT rework, but he also got the support circuitry for the chip!
I avoid SMT myself, since it's a pain in the butt if you don't have something to mount it to. But almost anything with DIP pins that isn't a One Time Programmable device (like PROMs, PALs, and windowless EPROMs) is potentially useful. And many of the programmable parts are socketed for easy removal. As for soldered chips, they're a pain to remove without proper tools (though the electric stove idea above sounds pretty cool), so I limit myself to just the most useful. Maybe I should seriously look into getting a proper soldering iron DIP head.
I started messing with TTL chips when I was a kid back in the late '70s, thanks to The TTL Cookbook. I even did mods to my TRS-80 (a Model I before they were called Model anything) back in the day, from which I learned the subtle art of piggybacking chips.
It is unfortunate that we've entered an era where almost everything is SMT and multi-layer boards, stuff that is too small and intricate to work with without lots of fiddling and expensive tools, and bus speeds so fast that you need SMT and multi-layer boards to make everything work. That's one reason classic video games are a hobby of mine. Because they date back to the era of DIP chips and double-sided PCBs, and are easy to hack.
I have a rice steamer where the roaches have gotten into the base of it more than once. It's wierd to see them come out through the gap arond the power switch.
Re:Idea for an experiment!
on
Ant Farm PC
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· Score: 1
Why not get a hamster, on a wheel, powering the computer ? Oh wait, I use an AMD... and 400 hamsters dying of heat exposure would not be nice.
That's why you use them to run the cooling fans! 400 ought to be almost enough for a single AMD CPU.
Token passing... is that anything like passing gas?
Admittedly, as Token Ring was dying, people were finally making the Token Ring equivalent of an Ethernet switch, with each port a ring unto itself, but by then it was way too late.
As for the speeds, I've only ever heard of 4 and 16 Mbps. I'm sure that there are optical protocols that pass tokens, but they're not Token Ring [tm].
You forgot the best part of 10base5... the vampire taps! In order to hook up to thicknet, you have to stick a vampire tap into the coax cable, and that was hooked up through the appropriate interface box to the AUI connector.
It's been long known that there are serious weaknesses in the CSS encryption that make it possible to find the encryption key, without using certain other keys, in 2^15 time. And any self-respecting DVD ripper will remove the CSS and region coding during the rip. Then you just burn the decrypted video. I've done it myself for an R3-only DVD that I own, and I even keep the ripped copy in the same case as the original disc.
The only thing that the "master key sector" does is prevent regular people from recording videos with CSS encryption on their own, or from doing a stupid bit copy.
The first bit, right before they talk about Intenet-delivered luncheon meat, said:
Lord Sainsbury of Turville: My Lords, I totally agree. These statistics on accidents are extremely fascinating; they prove that the British public can use practically anything in this world to hurt themselves with. It is understandable that there are an estimated 55 accidents a year from putty, while toothpaste accounts for 73. However, it is rather bizarre that 823 accidents are estimated to be the result of letters and envelopes. It is difficult to understand how they can be the cause of such serious plight. I agree with the noble Baroness that it would be helpful if people paid careful attention.
Wow, over 125 accidents a year in the UK, just from putty and toothpaste alone!
Slashdot Mirror
Must be the same trick Bush used to kill the economy back in 2000. :)
If it didn't say it was 100% finished, then it wasn't finished. This can happen when there is no complete copy of the file currently being shared. Leaving it running overnight doesn't matter, because if nobody currently connected has all the parts, it won't finish until someone with a full copy of the file connects.
I tried playing GnuGo on my scanner, but the glass broke when I slammed the stone down. Oops.
The real problem is keeping the routing table size in control, which is why you need big blocks assigned by geographical area, rather than the old way, which was a bunch of random class B and C blocks assigned in sequential order with no regard to routing issues.
BBN, better known as Genuity. It's great that they're actually using their ancient Class A allocation.
The best part is the ones that still look like Windows 98 dialogs, five years and three versions of Windows later. I guess they figure that their prime market is people who don't even know enough to get rid of that crashy toy of an operating system.
I seem to recall reading on his site that BitTorrent is designed to take advantage of the Slashdot Effect.
Correction: I just remembered that the second computer doesn't even have to have a real IP. It can be behind a firewall or NAT, just as long as it can communicate quickly (like 100MBit Ethernet) with the unfirewalled machine.
As for your home box, if you have a firewall or especially NAT, you will see seriously impaired BT performance. People who have firewalls or NAT have to make their connections outbound only (unless it's been set up to forward the correct port inbound), which means they can only send or receive data to/from people with a real IP and no firewall, not to other firewallers or NATters. Less people to send data to, less chance to get karma with the tracker to get blocks assigned.
The coolest trick is to have two computers, each with a real, unfirewalled IP address connected to an ethernet switch between them and the uplink, then download a torrent with about a dozen users (too many users and this doesn't work, too few and there's not enough bandwidth to make a difference). When your two computers get assigned to each other and send crap to each other at 400 MBytes/sec, you suddenly get beaucoup karma with the tracker.
Gee, and I thought it was bad that the Mac version apparently doesn't close the downloaded file after you close its window. (You have to quit from the app.)
Or perhaps you cancelled the torrent download before it was finished. BT always creates a full size file to store blocks into, and because they're randomly assigned, it needs to allocate the disk space from the start. All you have to do is re-run the .torrent file with what you downloaded and it will verify it for you, even if nobody is still sharing that file.
I think you should probably go here for more helpful tips.
I avoid SMT myself, since it's a pain in the butt if you don't have something to mount it to. But almost anything with DIP pins that isn't a One Time Programmable device (like PROMs, PALs, and windowless EPROMs) is potentially useful. And many of the programmable parts are socketed for easy removal. As for soldered chips, they're a pain to remove without proper tools (though the electric stove idea above sounds pretty cool), so I limit myself to just the most useful. Maybe I should seriously look into getting a proper soldering iron DIP head.
I started messing with TTL chips when I was a kid back in the late '70s, thanks to The TTL Cookbook. I even did mods to my TRS-80 (a Model I before they were called Model anything) back in the day, from which I learned the subtle art of piggybacking chips.
It is unfortunate that we've entered an era where almost everything is SMT and multi-layer boards, stuff that is too small and intricate to work with without lots of fiddling and expensive tools, and bus speeds so fast that you need SMT and multi-layer boards to make everything work. That's one reason classic video games are a hobby of mine. Because they date back to the era of DIP chips and double-sided PCBs, and are easy to hack.
Of course the clock generator that this guy is ripping out with a hack saw is in the couple of hundred megahertz range, with crystal accuracy.
Darnit, that's what I get for using a Mac. Now I can't use this wonderful and extremely useful manna from the software gods. Curse you Steve Jobs!
Now all a woman needs to go along with this is a Lum costume.
I have a rice steamer where the roaches have gotten into the base of it more than once. It's wierd to see them come out through the gap arond the power switch.
That's why you use them to run the cooling fans! 400 ought to be almost enough for a single AMD CPU.
Admittedly, as Token Ring was dying, people were finally making the Token Ring equivalent of an Ethernet switch, with each port a ring unto itself, but by then it was way too late.
As for the speeds, I've only ever heard of 4 and 16 Mbps. I'm sure that there are optical protocols that pass tokens, but they're not Token Ring [tm].
You forgot the best part of 10base5... the vampire taps! In order to hook up to thicknet, you have to stick a vampire tap into the coax cable, and that was hooked up through the appropriate interface box to the AUI connector.
I finished it already. You can have my copy. It's only slightly dogeared on the corners.
The only thing that the "master key sector" does is prevent regular people from recording videos with CSS encryption on their own, or from doing a stupid bit copy.
Now if they could just get this in Chinese, Korean, and Russian, maybe we'd have something here.
Now remind me again what the two-cent coin would look like under your system?
The first bit, right before they talk about Intenet-delivered luncheon meat, said:
Lord Sainsbury of Turville: My Lords, I totally agree. These statistics on accidents are extremely fascinating; they prove that the British public can use practically anything in this world to hurt themselves with. It is understandable that there are an estimated 55 accidents a year from putty, while toothpaste accounts for 73. However, it is rather bizarre that 823 accidents are estimated to be the result of letters and envelopes. It is difficult to understand how they can be the cause of such serious plight. I agree with the noble Baroness that it would be helpful if people paid careful attention.
Wow, over 125 accidents a year in the UK, just from putty and toothpaste alone!