Also when right after a Difficulty Bump the equations go out of wack. Because difficultly isn't continuously updated, but instead in bursts. When calculating network hash speed it is based on Share/Block and Difficulty. The ratio of Share/Block to Difficulty, right after a Difficulty bump creates extra unaccounted for hash rates that are just purely a calculation error. It takes awhile to balance out.
For instance you guys remember how after each Difficulty jump it says something absurd like the network speed just jumps up like 1-4 Thash instantly.
Example: I don't know the exact equation but.
Say:
(Say the equation is Diffculty / Shares per second)
5 / 1 = 5 Hash/s
Right after an difficulty bump of +5:
10 /1 = 10 Hash/s
The Calculated hash rate jump but technically the Real hash speed hasn't changed. Right after the Difficulty bump the Share per second increases as Real Speed increases (Due to more users). That's why right after the huge jump after a difficulty bump you steady see overall hash speeds going down.
That is whats accounting for that giant portion of (Other) you probably got it right after the bump to 500k which was around 2 days or something ago.
Topic: What's up with all the DDoS? (Read 2855 times)
and now people know why Tycho (correctly) did not close registrations for deepbit despite all the people wigging out a couple days ago.
The 100% of this pie chart is calculated by the rate of new block generation in the network, but all the pools there are accounted by their hashare.
Hashrate and block generation rate are somehow similar, but NOT the same.
0.49% for other was wrong number.
Hashrate and block generation rate are somehow similar, but NOT the same.
0.49% for other was wrong number.
Don't get worried until it's like this for longer than a day.
And don't worry then either. Other is decentralized miners doing their thing!
Those graphs have a one day lag for "other", because total network hash rate takes a long time to measure. "other" is simply the average total hash rate over the last day - the current reported hash rate of all the pools. Don't get worried until it's like this for longer than a day.
When slush's front end goes down, but mining still works (which happens quite often), his hash rate is represented on the pie chart as other.
"Other" has 40% ?
Compared to .49% 2 days ago
June 8th 2011
Does this mean miners are going solo because the pools are going down or misbehaving?
Slush is not showing any status on bitcoinwatch.com
all graphs are from there bitcoinwatch.com
all graphs are from there bitcoinwatch.com
Where is slush in the top pie chart?
"Other" has 40% ?
Compared to .49% 2 days ago
June 8th 2011
That is certainly interesting. Someone must have +2thash/s of power just idling for attacks. Then again, collective hash rate did drop a lot. It was 400ghash/s at slush at one point.
"Other" has 40% ?
Compared to .49% 2 days ago
June 8th 2011
Any challenge to the current fiat controlled banking system will be attacked wether you are a country, a company, or a cryptocurrency not controlled by them. This is shown time and time again around the world.
Slush's pool AND Deepbit are both getting hit big-time, repeatedly, with Distributed Denial of Service attacks!
What gives?
What gives?
1. target ~65% of aggregate mining pool with hired zomB net DDoS
2. Continue to mine your own 20-50 Ghash minifarm solo
3. Increase personal likelihood of mining whole blocks by factor of 1000
4. Profit
Nope ...
I just realized though.. removing all that hashing from the pool wouldn't reduce the diff.rate (immediately) so your personal odds of mining a block don't actually change.. I think you'd have to effectively remove a shit-ton of hashing power for an extended period of time and get the diff.rate to go back down for this to be an effective attack vector..
Math isn't necessarily my strong suit. Someone smarter than me please comment.
Math isn't necessarily my strong suit. Someone smarter than me please comment.
Correct. Mining isn't a race. Other people finding (or not finding) blocks doesn't affect your odds in any way. In the long run, if you manage to knock out significant mining capacity for a long period of time, then you can affect the difficulty level, which so long as your own mining isn't affected, does mean you will end up mining more in the long run. However, targeting pools is not a good way to do this, because the individual miners will simply hop between pools as one goes down and you won't affect the hashing rate for very long at all (not long enough to have a big long term effect).
So basically someone is either just griefing because they can?
Or they want to take out the network because they dislike bitcoins.
(less pools = solo = too much variance for most)
Or they want to take out the network because they dislike bitcoins.
(less pools = solo = too much variance for most)
A denial of service attack costs money and resources (infected PCs valued at $0.25 to $3 each depending on country and bandwidth available).
It's a service that has a tangible real world value.
So it's either someone very bored who has access to his own botnet, or someone is actually paying thousands of dollars per hour just to annoy miners.
There isn't really any financial gain here, since difficulty level only changes every 2016 blocks.
Attackers chances of finding blocks does not go up simply because he forces other miners out for a few hours.
I just realized though.. removing all that hashing from the pool wouldn't reduce the diff.rate (immediately) so your personal odds of mining a block don't actually change.. I think you'd have to effectively remove a shit-ton of hashing power for an extended period of time and get the diff.rate to go back down for this to be an effective attack vector..
Math isn't necessarily my strong suit. Someone smarter than me please comment.
Math isn't necessarily my strong suit. Someone smarter than me please comment.
Yes. This is correct.
The only suspects who would be motivated by profit to DDoS a pool would be a competing pool.
Slush's pool AND Deepbit are both getting hit big-time, repeatedly, with Distributed Denial of Service attacks!
What gives?
What gives?
1. target ~65% of aggregate mining pool with hired zomB net DDoS
2. Continue to mine your own 20-50 Ghash minifarm solo
3. Increase personal likelihood of mining whole blocks by factor of 1000
4. Profit
Your probability is based on the difficulty not the current global hash rate. You would need to run #1 long enough (2 weeks) to affect a difficulty decrease so #2 is profitable
So basically someone is either just griefing because they can?
Or they want to take out the network because they dislike bitcoins.
(less pools = solo = too much variance for most)
Or they want to take out the network because they dislike bitcoins.
(less pools = solo = too much variance for most)
A denial of service attack costs money and resources (infected PCs valued at $0.25 to $3 each depending on country and bandwidth available).
It's a service that has a tangible real world value.
So it's either someone very bored who has access to his own botnet, or someone is actually paying thousands of dollars per hour just to annoy miners.
There isn't really any financial gain here, since difficulty level only changes every 2016 blocks.
Attackers chances of finding blocks does not go up simply because he forces other miners out for a few hours.
Yeah, It would take probably months for the number of blocks to get solved for the difficulty to change.
So basically someone is either just griefing because they can?
Or they want to take out the network because they dislike bitcoins.
(less pools = solo = too much variance for most)
Or they want to take out the network because they dislike bitcoins.
(less pools = solo = too much variance for most)
I just realized though.. removing all that hashing from the pool wouldn't reduce the diff.rate (immediately) so your personal odds of mining a block don't actually change.. I think you'd have to effectively remove a shit-ton of hashing power for an extended period of time and get the diff.rate to go back down for this to be an effective attack vector..
Math isn't necessarily my strong suit. Someone smarter than me please comment.
Math isn't necessarily my strong suit. Someone smarter than me please comment.
Jump to: