jakiro
How to understand the expansion of the @Vitalikbuterin in Ethereum?Some people say that Vitalik shouted the Blob inscription, and left a lot of spectrum.
So how does the BLOB packet work?Why can’t the Blob space of Blob after the upgrade of Cancun get efficient use?DAS data availability sampling is prepared for sharding?
In my opinion, Cankun can be used after upgrading, and Vitalik is worried about Rollup development.Why?Next, let me talk about my understanding:
1. It has been explained many times before, BLOB is a temporary packet that can directly retrieve the consensus layer with EVM CALLDATA. Direct benefits are that EVM can not access BLOB data when performing transactions, so it cannot generate higher execution of executionCalculation costs.
At present, a series of factors are balanced. The size of a Blob is 128K. One Batch has a maximum of two BLOB transactions to the main network. Ideally, the final goal of a main network block is to carry about 128 BLOB packets of 16MB.
Therefore, the ROLLUP project party should balance the number of BLOB blocks, TPS transaction capacity, BLOB main network node storage costs, etc., and the goal is to use the BLOB space at the optimal cost performance.
Taking @optimism as an example, at present, about 500,000 transactions a day, on average, on average every 2 minutes of BATCH to the main network, carry 1 BLOB packet at a time.Why do you bring 1, because there are so many TPS, of course, you can also carry two. The capacity of each blob will not be full, but it increases the storage costs. It is not necessary.
When the transaction volume under the Rollup chain increases, what should I do if I need to deal with 50 million transactions every day?1. Compress compress the transaction volume of each BATCH to make the BLOB space content a large amount of transactions as much as possible;
2. Since the main network blocks are affected by the Gas Limit and the storage cost, 128 BLOBs in 1 block are ideal. At present, it is not used in it.There is still a lot of space to increase TPS and expand the number of market users and ecological prosperity.
Therefore, for a period of time after the upgrade, Rollup does not “volume” in terms of the number, frequency, frequency and BLOB space bidding in BLOB.
The reason why Vitalik mentioned BlobScripting inscription is that this type of inscription can briefly increase the transaction volume to increase the demand for BLOB.It doesn’t matter much.
Because in theory, if there is a high -frequency and high capacity of the Layer2 project, it is high -frequency and high capacity to the main network Batch, and the BLOB block is full, as long as it is willing to bear the cost of a high amount of falsification trading, the cost of BATCH will affect other Layer2 pairs of BLOBIn normal use, but under the current circumstances, like someone buys computing power to attack the BTC 51%hard split, it is theoretically feasible, but the actual lack of motivation for interests.
Therefore, the use of the GAS cost on the second floor will be stable for a long time in the “lower” range, which will give the Layer2 market for a long time “increased soldiers” gold development window.
3. So, if the Layer2 market is prosperous one day, the transaction from BATCH to the main network every day is huge. What should I do if the BLOB packet is not enough?Ethereum has already given solutions: data availability sampling technology (DAS):
The simple understanding is that the data that originally needed a node storage can be distributed in multiple nodes at the same time. For example, each node storage all the Blob data of 1/8, 8 nodes to form a group to meet the DA capabilities, which is equivalent to the current to put the currentThe BLOB storage capacity has been enlarged by 8 times.This is actually something to do during the Sharding fragmentation stage in the future.
But at present Vitalik has repeatedly reiterated this, and it seems to have warned the majority of Layer2 projects: Don’t complain that Ethereum DA is expensive. With your current TPS capacityThe firepower is engaged in ecology and expands users and trading volume. Don’t always think that DA escapes to engage in one -click hair chain.
Later, Vitalik added another sentence that in the current core ROLLUP, only Arbitum has reached Stage 1. Although @DegateDex, Fuel, etc. have reached Stage2, they have not been familiar with groups.Stage2 is the ultimate goal of Rollup security. A few Rollup achieved Stage 1, and most RollUp is in the Stage 0 stage. It can be seen that the development of the Rollup industry really makes Vitalik worry.
4. In fact, in terms of the problem of expansion bottlenecks, the Rollup Layer2 solution can improve performance.
1. Use Blob space to compress data more efficiently. OP-Rollup currently has a special compressionor component to perform this work. ZK-Rollup itself compressed Snark/Stark that it is “compressed” to the main network Submit;
2. Reduce Layer2’s dependence on the main network as much as possible. Under special circumstances, optimistic proof techniques are used to ensure L2 security. For example, most of Plasma data is on the chain, but in the deposit and withdrawal scenarios, the main network occurs. ThereforeThe main network promises its security.
This means that Layer2 should only consider the such important operations such as deposit and withdrawal to the main network. This reduces the burden on the main network and enhances the performance of L2.Screening, classification pre-processing a large number of transactions, and hybrid Rollup implemented by@Metism2, go to OP-Rollup normally, and special withdrawal requests to take a special withdrawal request. There are similar considerations.
above
It should be said that Vitalik’s thinking Ethereum’s future expansion plan article is very inspiring.In particular, the dissatisfaction with the development of Layer2, optimistic about BLOB’s performance space, and the outlook for future sharding technology, and even bitterly pointed out some direction that Layer2 is worthy of optimization.
In fact, the only uncertainty is left to Layer2 itself. How can I accelerate development?
