DDoS attacks starting up again..
Fuck! Are they coming from different IP's? UDp/TCP or both? Is there any way your ISP to filter them out? We know that it is not your fault doc but there must be something to do about it? That is one of the reasons to change your previous hosting provider right? How is the story here with your new provider? 10X |
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The most unpleasant thing that there is not much doc can do about it Fuck  Doc, Once again Consider VPN+NAT for mining backend. Keeping your real IP hidden will help a lot assuming that you have SOME VPS black boxes just to portwarfard mining traffic. Shutting down the Attacked VPS vpn will guard you completely, then Use different VPS for ovpn. I know that this sucks and is pain in the ass, but this will allow you to change your pool ip on the fly and will slow down the attackers. They will need to prepare/launch new attack against new IP then you will change again in a minute and they are fucked up! PM me if you wnana know more details about the setup, but i am completely sure you got it  |
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DDoS attack is starting up again.  Doc, Consider the vpn+nat IDEA. It will slow down them for sure as lon as you keep real Server IP secret. Best |
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How feasible is it to register one's IP with Bitminter, to create a whitelist of IP addresses. Traffic from all other addresses not in the IP whitelist can then be dropped by the edge routers. Probably not realistic. But an idea nonetheless.
VPN+NAT (Proxy) to core bitminter server from IP located in US for instance. When Dos attack is launched, core sever shuts the VPN to attacked US machine and fires anothewr one to EU IP which is published here + DNS changes. So attackers will be not be so flexibble and they will be cutted of completely as long as real IP of bitminter stays hidden always. DOC just needs a couple of VPS (empty boxes) to be exposed all over the world |
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Are there any known Avalon hashrate regressions? I tried latest FW with 3.2.1 cgminer and both Avalons have lower hasrate (the difference from the last FW is around 1Ghash).
It looks there are more HW errors, but I'm not 100% sure.
The old avalon code lied about the hashrate and lied about the hardware errors. It counted hardware errors as hashrate (and since it's a hardware error it can't be valid hashes that it's doing) and didn't count "no matching work" scenarios as hardware errors. So the new code will appear to have a lower hashrate and a higher hw error count, but in fact it's doing more useful work and just not lying about the rates (along with all the other benefits in the new code). Con, Will you be so kind to comment this: https://bitcointalk.org/index.php?topic=140539.msg2489565#msg248956510X Just looks like variance, however the good news is I found somewhere to boost the hashrate on avalon ever so slightly on the next version anyway. Super! I am eager to test it. It is about time for me to start building custom avalon Images:) I will post my results. thank you very much! |
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To be honest, I haven't tried to compute that and I don't have the old reference numbers. As new FW is rock stable for me, I haven't tried other things yet due the time restrictions . Of course if performance can be better, I'll be glad  . I do agree with you 3.1 still needs power off/on on occasions. This happens rare for sure but still happens. As long as i solved this from day one, 3 000 MHS do matter for me and i am sticking to 3.1 Let us wait for Con comments. Best |
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Are there any known Avalon hashrate regressions? I tried latest FW with 3.2.1 cgminer and both Avalons have lower hasrate (the difference from the last FW is around 1Ghash).
It looks there are more HW errors, but I'm not 100% sure.
The old avalon code lied about the hashrate and lied about the hardware errors. It counted hardware errors as hashrate (and since it's a hardware error it can't be valid hashes that it's doing) and didn't count "no matching work" scenarios as hardware errors. So the new code will appear to have a lower hashrate and a higher hw error count, but in fact it's doing more useful work and just not lying about the rates (along with all the other benefits in the new code). Con, Will you be so kind to comment this: https://bitcointalk.org/index.php?topic=140539.msg2489565#msg248956510X |
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Hi, I noticed that too and asked CKolivas. He replied: The old avalon code lied about the hashrate and lied about the hardware errors. It counted hardware errors as hashrate (and since it's a hardware error it can't be valid hashes that it's doing) and didn't count "no matching work" scenarios as hardware errors. So the new code will appear to have a lower hashrate and a higher hw error count, but in fact it's doing more useful work and just not lying about the rates (along with all the other benefits in the new code). https://bitcointalk.org/index.php?topic=28402.msg2406402#msg2406402With my deep respect to Con and Kano i can state following: I calculate my ACTUAL hash rate as advised by Kano taking in account Diff1 shares accepted from pool(s) and cgminer up-time. This gives me EXACT (Real) hashrate. Knowing the fact my network was fine and i did not have downtime due to Network issues, pool issues or FPGA controller hangs (I am monitoring it every two minutes + automated power off/on no reboots) i am 100% sure that 3.2 is not performing. The magic can be this commit: https://github.com/ckolivas/cgminer/commit/bd6bc6bd23424958ebf1d49f22d6a50070d13d23Not tested yet. Avalon image was released before that It may turn out that 24 Hours run is not enough because of the variance and/or bad luck - that is the only fact that makes me uncertain about 3.2 performance. I will give it another 48 hours run next weekend and i will report back the results. Mean while i will stick to 3.1 Best PS: just for the reference (do math yourself) Computer: cgminer 3.1.1 Elapsed: 7h 11m 30s Difficulty Accepted:431530.00000000 MHS:71587.77 That was not happening with 3.2 |
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Anyone try the latest firmware?
Cheers
I did. Accourding to my testing 3.2 clocked at 300 is making about 68000 compared to 3.1 70500. 24 hours run. I downgraded to cgminer 3.1. I do not know what is the reason, but there is performance decrease. Will Anyone else to share the cgminer 3.2 results? |
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You are a star Zefir!
buy the way are there any samples sent to Bkkcoins? 17 Chips are scheduled as far as i can see
Thank you very much!
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I am not getting them for 45 The point was that for 45 the buyer could make a profit also - 1-2 month ROI. Everything else for me is a looser in terms of ROI. However everyone has own motivation we the buyers do deserve to earn a coin don't we? And the seller has made his roi a long a time ago...that is my way of thinking demand and supply. And simple math skills however i do agree he can sell them about 100 BTC even though it will be extremely bad deal for potential buyer PS: Off topic i am still wandering why people buy Blades for 50 btc and usb sticks for 2.3 or whatever complete mastery  |
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Zefir,
As long Bkkcoins and marto74 are getting chips i am ok. They are my favorites. No hard feelings for other devs/projects at all.I see that both of them will get some.
Best
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bump
Sell them for < 100 BTC and you will have the deal. Otherwise mine with them. I can buy one or two units in this right moment for 45 BTC each amusing you have good ROI ALREADY. Have in mind that your potential customers deserve good ROI also. that is what is called winner for both parties. Bupimg the crazy price you ask is leading you no where at 45 each the roi is around two months right now. At 250 BTC roi is infinity = looser
Will the increase in difficulty, I'd only pay maybe 125 btc for a avalon miner right now.
And migo you will loose about 50 BTC for sure 125 btc is insane price do your math properly! |
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Is the fuse F1 a semiconductor fuse or just a glass tube with a wire inside? Either way, wouldn't it be sufficient to just cut it with a side cut or so?
semiconductor one i guess https://en.bitcoin.it/wiki/Avalon#V1.5 USB NEC and ftdi chip melting.....  |
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Is it safe to order from them? I dont want another BFL. I am in the 300th place in line, So should I order? And what will difficulty be by when they start shipping Dude, use your own head and decide. None knows this yet there are only presumptions. If you can afford to loose your investment go ahead. In my opinion they are cool but shit always happens and then you will be the only one responsible for your OWN decisions taken... Good luck |
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Dude, I suggest when you get back home to unsolder F1 to avoid USb chip overvoltage (control unit v 1.5) and to install usb hub in between (WR703 and FPGA controller). I do not know how long will you be away from your avalon but if you can afford to leave it offline until you are there and fix the problem that would be best option. Otherwise USB chip can melt And finally last time when i asked my girlfriend to help me out with wires when i was away it turned out to be complete mess so leave the lady alone Best PS: if you do have more than one avalon you can install one hashing module in each of the working units and change PSU accordingly + cgminer opts..... |
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No No and No
Come on dude are you joking? BFL is joke that is all. I will trow my money in garbage but i will never buy a nut from BFL
That is my opinion
Best luck to all of BFL customers though
You are very right, that's why I'm intending to use money as leverage and don't give them a penny on preorder. (As other people did.) They could accept this if they are in need of money and board manufacturing is the bottleneck. Dude, They do not have a working (shipped) product yet. what chips are they selling? I do think that there are a lot of crazy people who will trow again millions on that venture and it will be about time for BFL to disappear completely and forever! |
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No No and No
Come on dude are you joking? BFL is joke that is all. I will trow my money in garbage but i will never buy a nut from BFL even it is in stock and it ships on next day
That is my opinion
Best luck to all of BFL customers though
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31-May-13
We got a quotation from diferent suplier for both PCB and assembly for 1000 batch order
Just for information
PCB + test + assembly - About 31 EUR per piece for batches of 200 pcs based on 3 weeks lead time
PCB + test + assembly - About 27 20.5 EUR per piece for batches of 1000 pcs based on 3 weeks lead time
Components for 200 pieces batch - 18.85 EUR
Components for 1000 pieces batch - 14.85 12.477 EUR
I'll add to the cost 4 Usd or 0.04 BTC per piece for BKKcoins
My fee to organize everything would be 10 %
So do the math 31 + 18.85 = 49.85*1.1 = 54.835 EUR + 0.04 BTC sent to developer for 200 boards batch
So do the math 20.5 + 12.477 = 32.977*1.1 = 36.275 EUR + 0.04 BTC sent to developer for 1000 boards batch
Let us look that at different angle 36.275/16 chips = 2.267 Eu per chip to make it mine! I am impressed marto! What else do we need guy's Yeeah i forgot the chips |
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I am not saying that disabling wifi won't help. There is definitely what seems to be a second problem, that is taken care of by disabling wifi, which is a good thing to do in addition to removing the fuse F1. I have a hunch that it is because there is no decoupling capacitor close to USB-B1 (C44 is too distant), and the power consumption of the TP-LINK with wifi enabled is very variable, causing ripple across the internal 5V rail of the control unit...
Or just to put usb powered hub get 5V for the hub from PSU - molex whatever and plug both TP-link and controller in it:) and remove Fuse of course And yes disable wireless (delete wifi modules) not because of power issues (solved with usb hub already) but to free about 10M of RAM |
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