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February 19, 2017, 09:22:14 PM *
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1  Bitcoin / Bitcoin Discussion / Re: So who the hell is still supporting BU? on: Today at 12:11:48 AM
I guess the bitcoind devs have never worked with multithreading then*? Such a pity. And such a cutting-edge 1990's technology. If inordinately large signature transactions ever become A Thing, miners employing bitcoind will be bankrupted by smarter miners.

C'est la guerre. To the wiser go the spoils.

*Yes, unnecessarily provocative. But it certainly points out just one more instance where devs are working on the wrong things.
It is a bit too harsh. While I'm continually frustrated by some of the limitations of the bitcoind client and the lack of emphasis on things that I am concerned about (since mining with it is my personal interest), it does not pay credence to how such code realistically evolves and the difficulties of keeping massive rewrites safely in check while evolving the client in multiple directions. I'm not much of a c++ coder myself so I can't do anything much to help but at least I do understand what's involved in maintaining such a massive project. It is impossible to know what issues will become problematic in the future when first starting a project; they only become apparent as it evolves and need to be tackled in a methodical manner. Emphasis has only been placed on speed of block processing, propagation, and work template generation in recent times and the improvement is already substantial but has a very long way to go. If the client was written from the ground up now with emphasis in those areas, knowing what we already do now know, it would no doubt look very different. Some things, though, are protocol limitations and not the client. Things like the quadratic scaling issue are in the current bitcoin protocol design and no amount of client rewrites without a protocol change will get around that. I'm not arguing for one only. Both need to be addressed.
2  Bitcoin / Bitcoin Discussion / Re: So who the hell is still supporting BU? on: February 18, 2017, 10:58:23 PM
Riddle me this: built off a parent of the same block height, a miner is presented -- at roughly the same time:
1) an aberrant block that takes an inordinate amount of time (e.g.,  10 minutes) to verify but is otherwise valid;
2) a 'normal' valid block that does not take an inordinate amount of time to verify; and
By the way, as far as I can understand the bitcoind code as I read it (and no doubt I will be corrected if I'm wrong which is fine), this is an attack vector that "choosing between them" is the least of your problems because it cannot process them both concurrently and then decide that (2) has finished long before it has finished processing (1). This means that if a (1) block hits even 1us before the (2), bitcoind will sit there processing it until it has finished before it can process (2). While this is purely a limitation of the software as it currently stands that it cannot process multiple blocks concurrently in a multithreaded fashion due to the coarse grained locking in the software, it doesn't change the fact there is no way to deal with this at present. It would require a drastic rewrite of the existing code to make the locking fine grained enough to do this, or a new piece of software written from the ground up; both of which carry their own risks.
3  Bitcoin / Mining / MOVED: Is Bitcoin mining currently too energy inefficient for the future? on: February 18, 2017, 09:47:37 PM
This topic has been moved to Mining speculation.

https://bitcointalk.org/index.php?topic=1794973.0
4  Bitcoin / Pools / Re: [∞ YH] solo.ckpool.org 1% fee solo mining USA/DE servers 228 blocks solved! on: February 18, 2017, 07:52:47 AM
Very lucky guy, 2 blocks in the same day!!!
Code:
[2017-02-18 01:48:11.748] Possible block solve diff 761664290226.260620 !
[2017-02-18 01:48:11.970] BLOCK ACCEPTED!
[2017-02-18 01:48:12.068] Solved and confirmed block 453586 by 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73.jeffcolo
[2017-02-18 01:48:12.068] User 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73:{"hashrate1m": "495T", "hashrate5m": "487T", "hashrate1hr": "484T", "hashrate1d": "482T", "hashrate7d": "305T"}
[2017-02-18 01:48:12.068] Worker 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73.jeffcolo:{"hashrate1m": "495T", "hashrate5m": "487T", "hashrate1hr": "484T", "hashrate1d": "482T", "hashrate7d": "305T"}
[2017-02-18 01:48:12.068] Block solved after 41886555938 shares at 9.9% diff

https://www.blocktrail.com/BTC/block/000000000000000001718c020570d4a0ac5fd71f094e832866fd9cd673570de1

I even captured this on my cgminer

Code:
[2017-02-18 18:48:06.854] Pool 0 message: Block 453586 solved by 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73.jeffcolo @ solo.ckpool.org!

Congratulations wetsuite! Looks like you've recouped all the mining rewards missed out on at shared pooled mining, though you have been extremely lucky.
5  Bitcoin / Mining / MOVED: GPU question MSI Twin Frozen III Video Cards on: February 18, 2017, 12:27:28 AM
This topic has been moved to Mining (Altcoins).

https://bitcointalk.org/index.php?topic=1794431.0
6  Bitcoin / Mining support / MOVED: Should I start mining? on: February 17, 2017, 10:15:33 PM
This topic has been moved to Mining speculation.

https://bitcointalk.org/index.php?topic=1794069.0
7  Bitcoin / Pools / Re: [∞ YH] solo.ckpool.org 1% fee solo mining USA/DE servers 227 blocks solved! on: February 17, 2017, 09:20:05 PM
Code:
[2017-02-17 08:58:10.584] Possible block solve diff 621904402614.558228 !
[2017-02-17 08:58:10.762] BLOCK ACCEPTED!
[2017-02-17 08:58:10.935] Solved and confirmed block 453478 by 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73.jeffcolo
[2017-02-17 08:58:10.935] User 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73:{"hashrate1m": "466T", "hashrate5m": "484T", "hashrate1hr": "487T", "hashrate1d": "479T", "hashrate7d": "286T"}
[2017-02-17 08:58:10.935] Worker 176sh81PQupUsFyX6hNL2PTYydSuL7Wu73.jeffcolo:{"hashrate1m": "466T", "hashrate5m": "484T", "hashrate1hr": "487T", "hashrate1d": "479T", "hashrate7d": "286T"}

https://www.blocktrail.com/BTC/block/000000000000000001c4984306153b93ccc027b693289791cef818706a71cace

With over 1.2BTC in fees.

woo my lucky s9's hit a block in less than a week with ~ 500 TH!

I had these pointed at Kano before with ~ 560 TH and they found 5 blocks there in 2.5 months but my actual earnings from the pool was about half that, so I decided to try solo-mining and glad that I did!

Congratulations!

The number of shares finally got reset but again the best share counter still didn't reset. I need to kick it in the balls.
8  Bitcoin / Mining software (miners) / Re: Cgminer working on Rasberry Pi on: February 17, 2017, 11:20:36 AM
sudo is not required for git clone, autogen and make. However since you ran git clone sudo you made it owned by root so everything after that would then need it.
9  Bitcoin / Development & Technical Discussion / Re: Incentivized Nodes on: February 16, 2017, 10:47:07 PM
It's true. It's easy to spoof a node.
10  Bitcoin / Mining software (miners) / Re: cgminer: Antminer u2 not working. on: February 16, 2017, 09:26:49 PM
Cgminer support thread is here, please use it:
https://bitcointalk.org/index.php?topic=28402.0
You're also using an ancient version of cgminer.
11  Bitcoin / Mining support / Re: How solo mine? on: February 15, 2017, 10:46:44 PM
Correction: 1% fee if you find a block.
12  Bitcoin / Mining / MOVED: Which PC/Computer Minner is Best? on: February 15, 2017, 08:35:37 AM
This topic has been moved to Mining speculation.

https://bitcointalk.org/index.php?topic=1790875.0
13  Bitcoin / Mining support / MOVED: GPU Rig Mining Issue on: February 15, 2017, 04:54:46 AM
This topic has been moved to Mining (Altcoins).

https://bitcointalk.org/index.php?topic=1790777.0
14  Bitcoin / Pools / Re: [∞ YH] solo.ckpool.org 1% fee solo mining USA/DE servers 226 blocks solved! on: February 15, 2017, 03:31:29 AM
Would it be possible for miners to set an email address to get notified if they hit upon a block? Maybe they could add it via the website using a signed message from the address they are mining to? It would be helpful for miners who mine long-term without them needing to check their wallet everyday.
Solo has no database whatsoever so there is nothing to store such information and act upon it. I believe lots of web blockchain viewing services provide something for that. On the other hand expected block solves are rare at only about 1 every 2 weeks and I post every single one of them here so if you are subscribed to get email notification of new posts here and see the block count increase in the message topic, you know a block has been solved and can then check here or your wallet.
15  Bitcoin / Mining / MOVED: Planning of new large Bitcoin Mining Facility in Germany on: February 15, 2017, 02:54:00 AM
This topic has been moved to Mining speculation.

https://bitcointalk.org/index.php?topic=1789196.0
16  Bitcoin / Mining / MOVED: Is Bitcoin Mining still profitable? on: February 14, 2017, 09:21:35 PM
This topic has been moved to Mining speculation.

https://bitcointalk.org/index.php?topic=1790385.0
17  Bitcoin / Bitcoin Discussion / Re: So who the hell is still supporting BU? on: February 14, 2017, 08:15:54 PM
Additionally touting the slim block submission as some technical advantage when all it leads to is every single miner starting to mine empty unverified blocks on every block change is a significant step backwards.

 If you are going to (try to) rebut the article, how about you actually rebut what it contains? There are exactly zero mentions of 'slim block submission' in the article. Do try to keep up - I don't think you have any idea what Xthin is.
Apologies for not being explicit then: The combination of "Xthin" "Expedited Relay" and "Optimistic mining" that BU explicitly is pushing since you want to be pedantic about terminology, and he links the articles that describe it himself, so I'm rebutting not only what's in the article, but his own linked articles within it.
18  Bitcoin / Pools / MOVED: How can I spot Ponzi schemes? on: February 14, 2017, 07:59:54 PM
This topic has been moved to Service Discussion.

https://bitcointalk.org/index.php?topic=1790210.0
19  Bitcoin / Mining support / MOVED: What hardware should I start out with? on: February 14, 2017, 07:57:08 PM
This topic has been moved to Mining speculation.

https://bitcointalk.org/index.php?topic=1789439.0
20  Bitcoin / Mining / MOVED: [WARNING!] Bitminer.io - SCAM ALERT! on: February 14, 2017, 11:45:40 AM
This topic has been moved to Scam Accusations.

https://bitcointalk.org/index.php?topic=1789851.0
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