Altcoins Talks - Cryptocurrency Forum
Cryptocurrency Ecosystem => Ethereum Forum => Basics => Topic started by: bambam on January 31, 2018, 01:09:51 AM
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Ethereum has a gas limit rather than a block size. The gas limit is a cap on both processing and storage/bandwidth because the cost of a transaction/function is fixed in units of gas for each type of instruction.
The gas limit is voted up or down by each miner and each miner determines what gas price it is willing to accept which is like bitcoin transaction fees but on a per gas basis rather than a per transaction basis.
Here is a chart of some gas related data
To figure out how many transactions can fit in a block you dont need to know what the price of gas is. You just need to know how much gas a transaction uses and divide the gas limit by that.
If the network receives a load of spam transactions that start filling up blocks then miners have 2 choices. They can vote up the gas limit to fit in more transactions or they can start increasing the gas price and reject transactions that pay too low a fee. Like with bitcoin a transaction with a low fee might still get through but it would have to wait until a miner that accepts a lower fee (lower gas price) is willing to let it in.
With a sustained spam attack it would just getprogressively more costly to do transactions until either the spammer runs out of money or the miners make so much money that they start expanding the network capacity...
on average: https://etherscan.io/chart/blocksize
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It helped for those who are begginers in crypto world.