CPU mining capacity XmR
the biggest advantage of XmR is that it can use CPU to dig holes and revitalize rendant CPU resources... Using graphics card to dig XmR, according to the current price, it may not be able to recover the cost!
You can't dig in a day. It takes 2000 years
the global unified computing difficulty of bitcoin is 2621404453 (expected to change in two days). It takes more than 2000 years for a 2.5GHz CPU to work out a bitcoin
in order to make the graphics card fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
extended data:
bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system
bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as block reward to reward the person who gets the answer
when bitcoin was born in 2009, block rewards were 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25
when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million
of course
but choose the currency that can be mined by CPU
1. CPU mining itself is less, and the more famous ones are XmR, HSR, etc.
2. The cost of renting server should be taken into account
mining is basically impossible, he used
XmR eats CPU cache, the larger the CPU, level 2 and level 3 cache, the higher the computing power,
AMD's fx8300, fx8350 and Intel Xeon E5 have higher computing power.
at the beginning, I did a task before I found the problem. I used taskkill to delete the process every one minute. First, I eased it. Then every process of the system was determined by opening the file location. I found a file in the temp folder and deleted it. In addition, the program would not be created again.
1. Close the access to the mining server
iptables - a input - s xmr.crypto-pool.fr - J dropandiptables - a output - D xmr.crypto-pool.fr - J drop.
2. Chmod - x minerd, cancel the execution permission. Do not delete minerd until the root cause is found, because it will be automatically generated once it is deleted
Service stop crond or crontab - R delete all execution plans5
6. Check the / var / spool / cron / directory and find a timer file of root user
Download script statement:
[plain] view plain
but they are different in structure, performance and use, and the main differences are as follows
the shape and working principle of spiral chute and spiral concentrator are basically the same, but they are different in structure, performance and use, The main differences are as follows
(1) the bottom section line of spiral concentrator is a part of parabola or ellipse, while the bottom section line of spiral chute is a cubic parabola. Therefore, the bottom of spiral chute is wide and flat, which is more suitable for handling fine materials
(2) the spiral chute is connected with concentrate, middling and tailings respectively at the end of the chute, while the spiral concentrator intercepts concentrate at the upper part and connects tailings at the end of the chute
(3) the spiral chute has no washing water, while the spiral concentrator has washing water
(4) the size of the spiral chute is smaller than that of the spiral concentrator. The optimal size of the spiral concentrator is 2-0.074mm, while the optimal size of the spiral chute is 0.3-0.04mm
(5) in terms of feed mass fraction, spiral chute requires high mass fraction, generally not less than 30%, while spiral concentrator does not require strict mass fraction, and the lower limit can reach 10%.