Ethereum bandwidth

1. It's better not to exceed 1100 cores. In fact, 1050 cores are just a little bit more than 1100 cores. Because even if you go up, it won't be obvious. The card game is still the card. Don't exceed the video memory. The core performance of 370 is only average at present. Bandwidth is not the bottleneck. In fact, it's just a little bit more psychological comfort

2.

bitcoin uses SHA-256 encryption algorithm. When mining, it competes with computing power. In order to improve computing power, bitcoin has gone through four stages: CPU mining, GPU mining, FPGA mining and now ASIC mining machine mining, and the degree of specialization is getting higher and higher

Ethereum uses the ethash encryption algorithm. In the process of mining, it needs to read the memory and store the DAG file. Because the bandwidth of each read memory is limited, and the existing computer technology is difficult to have a qualitative breakthrough in this problem, so no matter how to improve the computing efficiency of the computer, the memory read efficiency will not be greatly improved. Therefore, in a sense, Ethereum's ethash encryption algorithm is ASIC resistant.

different encryption algorithms lead to great differences in mining equipment and computing power between bitcoin and Ethereum

at present, bitcoin mining equipment is mainly ASIC mining machine with a very high degree of specialization. The maximum computing power of a single mining machine is 110t / s, and the scale of computing power of the whole network is more than 120eh / s

the main mining equipment of Ethereum is video card miner, and there are very few specialized ASIC miner. On the one hand, the "ASIC resistance" of Ethereum mining algorithm improves the threshold of developing ASIC miner. On the other hand, after Ethereum is upgraded to 2.0, the consensus mechanism will be transformed into POS, and the miner can not continue mining

compared with the ASIC miner, the graphics card miner has two orders of magnitude difference in computing power. At present, the computing power of mainstream graphics card miner (8 cards) is about 420mh / s, and that of Ethereum is about 230th / s.

from the time dimension of the past two years, bitcoin's computing power of the whole network is growing rapidly, while Ethereum's computing power of the whole network is growing relatively slowly

The ASIC mining machine of

bitcoin is monopolized by several major mining machine manufacturers, and miners can only buy it from the market; Although the graphics card miner of Ethereum is also manufactured by a special miner, the miner can buy accessories from the market and assemble them according to his own demand

3. Eth interface refers to the interface, is the most widely used LAN communication mode, but also a protocol. Ethernet interface is the port of network data connection
each version of Ethernet has a maximum cable length limit (that is, the length without amplification). Signals within this range can propagate normally, and signals beyond this range cannot propagate
in order to allow the construction of a larger network, repeaters can be used to connect multiple cables. Repeater is a physical layer device, which can receive, amplify and retransmit signals in two directions
extended data
several common Ethernet interface types
1. SC optical fiber interface
SC optical fiber interface has been applied in the era of 100base TX Ethernet, so it was called 100base FX at that time (F is the abbreviation of optical fiber). However, at that time, because the performance was not more prominent than twisted pair, but the cost was higher, so it was not popularized. Now the instry vigorously promotes gigabit network, and SC optical fiber interface is re valued
2. RJ-45 interface
this kind of interface is the most common network equipment interface, commonly known as "crystal head", and the professional term is RJ-45 connector, which belongs to the type of twisted pair Ethernet interface. RJ-45 plug can only be inserted along the fixed direction, and a plastic spring piece is set to be stuck with RJ-45 slot to prevent it from falling off
3. FDDI interface
FDDI has the highest transmission rate among the mature LAN technologies. It has the characteristics of timed token protocol, supports a variety of topologies, and its transmission medium is optical fiber. Fiber distributed data interface (FDDI) is a set of protocols developed by American National Organization for Standardization (ANSI) to transmit digital signals on optical cables
reference source: Network Ethernet interface

4. It's better not to exceed 1100 cores. In fact, 1050 cores are just a little bit more than 1100 cores
because even if we go up, the improvement will not be obvious. The card game is still the card
don't over store the video memory
the core performance of 370 is only average at present
bandwidth is not the bottleneck< In fact, surpassing is just psychological comfort
running points
slightly higher

5. GMCC, a public chain, can be directly exchanged for Ethereum

6. When creating a new word file, you should center the title, set the font, font size, font style, etc. We can make these settings into a fixed format, and automatically apply the title of this format every time we create a new document
in Word2000, create a new word document and click AutoCorrect on the tools menu. Open the AutoCorrect dialog box, select the AutoFormat as you type tab, and check "title" in "auto apply as you type" (in Word2002, check "built in Title Style")“ After "OK", return to the word window, input the title content and set it. Press enter twice in succession, and the title just entered will be automatically formatted
if you are not satisfied with the format of this title, you can modify it. Select the style command in the format menu, open the style dialog box, select the title 1 format, and click change to open the change style dialog box. To make a difference, you can change the name of the style, such as changing the name to automatic Title style. Click the "format" button to pop up the "format" menu. You can modify the "font", "paragraph" and so on to set the title style. Finally, click the "OK" button to set the title format as you need
tip:
1. Be sure to check the "add to template" check box in the "style" dialog box, so that the modification of style can be applied to all documents
2. Change the alignment to center in paragraph settings
3. After the title is automatically formatted, press "Ctrl + Z" or "backspace" to cancel the title format
thank you for your support

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