Wall Observer - MtGoxUSD wall movement tracker

[Sitarow]

[EnergyVampire]

Lag appeared to be dropping rapidly a couple minutes ago. Fell form 30+ and settled around 28 and is hovering.

Is it possible the lag is caused by too many people updating their orders simultaneously?

It would need to be a hell of a spike in order changing.

I don't know what percentage of orders are short-lived, in that they are either market orders or Bid or Asks who almost immediately get filled.

I suspect most orders are short-lived - just a hunch.

Down to 25.50... and we get another big seller.

Ah, yes, I believe that's the cause right there. When a large market sell order is executed, the matching engine needs to confirm that the USD is in the account for every single bid getting filled.

As someone mentioned earlier, new hardware won't fix this (Gox is supposedly using SSD now). It's the code but at least Gox is planning on fixing this soon.

[jl2012]

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

[essem]

can't help myself but I keep on hitting the F5 button on Gox

[Krabby]

Are we going down? Gulp.

[ElectricMucus]

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

How long does it take for a cpu to count from 1 to 10000?

[NamelessOne]

So far I'm pretty impressed by the market through this. Its been over an hour and it has been a very slow decline. A couple panics but not a ton.

[ManBearPig]

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

I'm sure the trading engine wouldn't let a single IP address create that many orders, so it has to be distributed.

[wonkytonky]

if this happens.. they should block all incomming  new orders.. until lag is gone..  

[essem]

So far I'm pretty impressed by the market through this. Its been over an hour and it has been a very slow decline. A couple panics but not a ton.

I'm pretty sure it's not going to look so pretty once the lag is over

[essem]

Looks like a lot of limit orders at 105 are going to get burned

[jl2012]

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

I'm sure the trading engine wouldn't let a single IP address create that many orders, so it has to be distributed.

Sure, I just make it looks simpler. You need thousands of dummy accounts

[DougTanner]

Ugh.

[hmmmstrange]

Is there a place i can bet on goxlag? Is anyone charting the lag?

[rpietila]

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

As it would be a one-click decision to disable this opportunity, yet Gox does not do it, despite frequent pleas from everyone I know, it can not be attributed to incompetence. They are doing it on purpose, and it is left to the reader, what this purpose is. (Please continue to sell off your coins at every instance of lag, you will be sure the lag remains until all your coins are gone.)

If I ever set up an exchange, such charade would never find its way to the order book.

Oh yes, and the decision to abolish trading fees, what bullshit. I would have added a $1 upfront per order.

[ManBearPig]

Also: is it me or are the steps in the price drops since the attack started roughly the same length as the lag at the time?

You can see people react to the first, second and third drops about 28-30 minutes later.

[Digikeys]

fair chunk of the 100 wall gone...

[Jaques]

no lag @http://coinlab.com/ ...101,xx$

[seleme]

100 wall to fail in 3, 2, 1.

[M4v3R]

Are we going down? Gulp.

Yes.