Ethereum: Understanding the cost of OPCode and their impact on gas costs
In Ethereum, when the function of the contract is performed, the total cost is calculated on the basis of a specific metric called OPCode costs. These costs are also called gas costs, these costs are determined by carrying out individual operations (OPCODES) in the contract.
What are the opcodes?
Opcodes are instructions that make up the Ethereum virtual machine. Determine which measures are taken under the contract. There are a total of 256 possible opcodes, each of which represents an action or a specific operation.
How to calculate Opde
The costs of the OPCode gas are calculated by adding the cost of all individual operations in the contract that causes the execution. In other words, if several opcodes are performed gradually to achieve the desired result, their cumulative cost will be higher than if only one opcode was used.
Example: Calculation of gas costs
Let’s look at the example when we have three opcodes:
- “Call”: This Opcode requires a different contract or function and transmits arguments.
- “Warehouse”: This OPCode stores data in memory.
- “Pod”: This OPCode deducts the value from the top of the battery.
To calculate the cost of gas in this example, suppose::
- Opcode “call” costs 30 ether to perform (this is an arbitrary example and the actual costs may vary).
- Opcode “Store” costs 500 ether for execution.
- Opcode
sous' costs 20 ether for execution.
If we make a contract in the following order:
- Call another contract with
Opcode: 30 ether
- Save data using OPCode` Store ‘: 500 ether
- Depart the value from the top of the battery using the OPCode “Under”: 20 ether
The total gas cost would be 30 + 500 + 20 = 570 ether.
Effect on gas costs
As you can see, the execution of a few opcodes gradually leads to higher costs than their execution one by one. Indeed, each OPCode has its own set of variables that must be pushed on the battery before running or loaded from memory.
In the real world scenario, developers often use techniques such as gas optimization and recovery memory to minimize the number of how many times it has to be done to reduce the total cost.
Conclusion
Understanding the costs of OPCode is crucial to the development and deployment of EThereum -based contracts. By calculating gas costs for individual opcodes, developers can ensure that their contracts are optimized for performance and profitability. While the Ethereum ecosystem continues to develop, it is necessary to remain in the current state with the latest proven procedures and opcode cost management techniques.
