Hashpower pool address
as tens of thousands of miners compete for the right to pack, the probability of a single miner seizing the right to pack is very small, and the output is very unstable. It is possible to grab the right once an hour or not once a year
in order to stabilize the mining output, miners often choose to join the mining pool. The mining pool integrates the computing power of a large number of miners and occupies a certain share in the total computing power of the whole network, so as to obtain a more stable mining output. After charging 2% ~ 4% of the pool handling charge, the output is distributed to the miners according to the miners' computing power
it's just like that it's hard for one person to win the lottery, so the mine pool organizes many people to buy the lottery together, and after winning the lottery, they are distributed to everyone according to the amount of contribution.
1、 Mining principle
at the beginning, we could dig bitcoin with the computer CPU. The founder of bitcoin, Nakamoto Tsung, g out the world's first creation block with his computer CPU. However, the era of CPU mining has long passed, and now bitcoin mining is the era of ASIC mining and large-scale cluster mining
looking back on the mining history, bitcoin mining has gone through the following five times: CPU mining → GPU mining → FPGA mining → ASIC mining → large-scale cluster mining, The mining speed changes are as follows:
CPU (20mhash / s) → GPU (400mhash / s) → FPGA (25ghash / s) → ASIC (3.5tash / s) → large scale cluster mining (3.5tash / s * x)
mining speed, which is called computing power in professional terms, that is, the ability of computer to generate hash collisions per second. In other words, how many hash collisions can our miner do per second is the calculation force. Computing power is the ability to dig bitcoin. The higher the computing power, the more bitcoin you dig, the higher the return
in the world of bitcoin, a data block is recorded about every 10 minutes. All mining computers are trying to package the data block and submit it, and the person who successfully generates the data block will get a bitcoin reward. Initially, bitcoin rewards of 50 bitcoins could be generated about every 10 minutes. But the payment is halved every four years, and now the bitcoin network can generate 25 bitcoins every 10 minutes
to successfully generate data blocks, miners need to find the effective hash value. To get the correct hash value, there is no shortcut. You can only guess. The process of guessing is the process of computer random hash collision. If you guess correctly, you will get bitcoin
Mining method: from a miner to a large-scale mine, you need to prepare a miner, a computer that can connect to the Internet, an AUC, a raspberry pie, power supply and all kinds of connecting lines, etc. The connection order of various devices is network cable - & gt; Raspberry pie - & gt; Microusb cable - & gt; AUC-> 4Pin cable - & gt; Mining machine and power supply
< EM > Figure 3: Mine Map (scale of tens of thousands of mining machines) < / EM >
nowadays, the profit space of small and medium-sized absenteeism who take one mining machine home or deploy a small family workshop (dozens of mining machines) is very limited, and the mining instry is graally concentrating on enterprises and teams with low-cost power resources and professional deployment ability
there are many factors that affect the mining revenue, such as the performance and power consumption of mining machinery, the computing power and difficulty of the whole network, the deployment and operation and maintenance capacity of the mine, the availability of low-cost electricity resources, and the currency price and policy guidance, etc. At present, excellent mining enterprises have the ability of chip research and development, a lot of computing power, professional mine deployment and operation experience, etc. in the future, resources and computing power will be more and more concentrated in these mining enterprises
2. Mine pool
in addition to the above equipment, you also need a necessary tool - mine pool. The function of the mine pool is to gather a large amount of mineral computing power, increase your probability of getting bitcoin, and at the same time, distribute your future bitcoin income to your account in advance
the simple explanation is as follows: now the bitcoin network generates a block every 10 minutes, which contains 25 bitcoins. Suppose there are 1W people in the world participating in mining, then in these 10 minutes, only one lucky person has taken these 25 bitcoins, and the others have nothing. The principle of the mine pool is that everyone mines in teams and distributes according to the agreed distribution method, so that the income of the miners' bitcoin tends to be stable and the risks of the miners are reced. Let's take the most common PPS allocation method as an example. Suppose that your computing power is 10t, and the computing power of the whole mine pool is 100t. Your computing power accounts for 1 / 10 of the total computing power of the mine pool. Suppose that the mine pool can generate 10 bitcoins a day, then you can get 1 bitcoin a day
3. Cloud computing power
in reality, the supply of mining machines often exceeds the demand, and at the same time, the delivery of mining machines needs a long waiting period. Miner installation, commissioning, maintenance and other processes are very complex, which requires a lot of energy. Miners have to enre the noise and heat of miner. For miners, the biggest cost is not these, but the high electricity charges consumed by mining. The profit space of small and medium-sized miners is getting smaller and smaller, even negative
Mining income and risk mining income can be calculated by the following formula:Mining income = generated bitcoin * currency price - mining machinery cost - electricity fee - custody fee
if you are just a small miner, generally you only need to dect mining machinery cost and electricity fee
Mining risks are as follows:
< UL >at present, the number of bitcoin is less than 4.5 million. If we do not issue additional bitcoin, the price of bitcoin will fluctuate, and the price callback will lead to the extension of the payback cycle
mining difficulty improvement at present, our machines can meet the market demand
the risk of power outage
< EM >
< / EM >
1. First of all, connect the network cable, plug the network cable into the network cable interface of the mining machine, and remember to plug it tightly. Only when the miner is connected to the Internet, there is no limit to the broadband
extended data:
shortcomings
first, the vulnerability of trading platform. The bitcoin network is robust, but the bitcoin trading platform is fragile. Trading platform is usually a website, which will be attacked by hackers or shut down by competent authorities
Second, the transaction confirmation time is long. When bitcoin wallet is first installed, it will consume a lot of time to download historical transaction data blocks. While bitcoin transaction, in order to confirm the accuracy of data, it will take some time to interact with P2P network, and the transaction will be completed only after the whole network is confirmed Thirdly, the price fluctuates greatly. Due to the intervention of a large number of speculators, the price of bitcoin for cash fluctuates like a roller coaster. Making bitcoin more suitable for speculation rather than anonymous trading Fourthly, the public did not understand the principle, and the traditional financial practitioners resisted. Active netizens understand the principle of P2P network and know that bitcoin has no legal person to manipulate and control. But the public doesn't understand, and many people can't even tell the difference between bitcoin and q-coin“ "No issuer" is the advantage of bitcoin, but in the view of traditional financial practitioners, "no issuer" currency is worthlessHashtoken alliance
The full name ofGHP is global hash power. It is a global computing alliance formed by global bitcoin miners and established the Computing Alliance Foundation. Based on Ethereum erc2.0, it has a total circulation of 10 billion tokens, of which 5 billion are locked up for a long time and 50 million are in circulation
GHP provides bitcoin computing power by miners. Around the bitcoin computing power instry chain, it builds mines, mining, mining machine proction, computing power mall, computing power wallet, mine pool, computing power game, etc., and realizes computing power asset securitization
{rrrrrrr}
< H2 > extended information:global hash power hash pass and ZT exchange have reached a strategic cooperative relationship. Global hash power hash pass (GHP) is scheled to launch zt.com digital currency exchange in the near future, and open GHP / eth, GHP / CNT trading pairs. At that time, ZT exchange will simultaneously open the currency charging function of global hash power hash pass (GHP)
relying on stable, professional and reliable technical support, ZT exchange has built a trading platform for blockchain digital currency, which is the most convenient to buy money and has the most convenient proceres, so as to truly meet the needs of global users. The operation performance of the exchange is also very stable, with real-time comparison of trading information, elastic flow protection and efficient order matching engine
When you heard that many people who bought bitcoin got rich overnight, Japan also legislated to accept bitcoin, and then the major businesses supported bitcoin payment... You also have grass in your heart. Although I don't know what this coin is, it seems to make a lot of money. Do you want to buy it for two yuan
With a wave of his hand, Mr. Nakamoto, you guys need not worry. In order to make money... Oh no, in order to save the economic crisis, I have already considered this small matter carefully. In order to ensure the authenticity and quantity of each coin, each of us has a small notebook. On this magical notebook, you can see the birth of each coin, and everyone is a witness. At the same time, for the sake of safety, our notebook also has a very cool function, which is to have an invisible lock. You can only see it, but you can't change it. This kind of bitcoin has authenticity and authorityat the same time, you can rest assured that bitcoin will not be used in vain. I have found many "bricks" of mainstream economics, analyzed bitcoin and predicted that it will become the mainstream currency in the future. Now you can dig (Jian) currency without spending a cent, and you can wait for the currency to appreciate. Isn't it super good
this boasting, we listen to the bious, some people go to dig (Jian) money, some keep watching. At this time, Nakamoto took action. In 2014, he secretly united with American e-commerce giants such as eBay, airbnb and Uber, which began to accept bitcoin payment. Since then, the bitcoin market has really begun. Many people know that there is money coming in vain, and they also begin to join the ranks of coin digging. However, the number of people is still small, and there are not many coins g up
until 2017, when the blackmail virus incident occurred and the whole world suffered from large-scale network virus attacks, the poisoning unit had only two choices, either waiting for the computer to GG and the data disappeared, or paying about RMB 2069 bitcoin to unlock
this made bitcoin instantly become global famous. At the same time, all units had no choice but to buy coins. At this time, the brothers who had been digging for (Jian) coins for five or six years had a collective climax. There were so many coins. You want to buy them, right. In this way, the value of pure virtual bitcoin without real value soared to $2151 / piece
since then, as you have heard, XXX has accumulated more than n bitcoins, which have soared ten thousand times and become rich overnight
up to now, the creator of bitcoin, Nakamoto Tsung, has become a fan of identity, but bitcoin is still not accepted by most countries, including China. At present, bitcoin's high trading volume is also an illusion. Most of them are bad speculators. Through high-frequency trading, they create an illusion to attract investors' attention. This practice is equivalent to Taobao's swiping orders
for you who want to invest, you still need to clarify some things
1. Bitcoin is not restricted by law, and of course it is not protected. Once your trading platform is attacked by hackers, your currency will be lost, there will be no place to find it, and there will be no place to reason Many people go to the rooftop)
2. The fluctuation is very great. You only see a ten thousand fold increase, but not a half drop overnight P>
3, bitcoin has no issuer. In today's financial world, the currency of no issuer is worthless, and the bubble economy may collapse at any time. p>
the last word of advice: don't touch bitcoin as a rookie, or the old bird will speculate and run when they earn money, otherwise they will be sad
libgcc.a 没有找到:
检查你的libgcc.a环境变量的设置
$CC --print-libgcc-file-name
若路径为libgcc.a 证明是当前目录下的库文件或者是PATH环境变量下的libgcc.a
找到你的工具链库的地址
find -name "libgcc.a"
/opt/fsl-qoriq/1.9/sysroots/ppce5500-fsl-linux/usr/lib/powerpc-fsl-linux/4.9.2/libgcc.a3
将此地址加到PATH里去:
export PATH=/opt/fsl-qoriq/1.9/sysroots/ppce5500-fsl-linux/usr/lib/powerpc-fsl-linux/4.9.2/libgcc.a:$PATH
In PowerShell 3.0, a new command is added: get filehash, which is used to find the hash value of the file
for example, I need to check the hash value of D: (R.html), as follows:
< pre t = "code" L = "bash" > get filehashd: (R.html < / pre >the result is as follows: