Gas
Gas is required to post a transaction to the network, the amount of gas is deterministic with contract execution complexity. A simpler transaction such as transfer of ZIL funds is less complex than say adding liquidity to a pool, just because of the complexity difference in code. Each read and write will cost more for the network to process your transaction.
How is gas calculated#
Each usage of a Scilla literal, executing an expression and statement in Scilla have a deterministic associated cost. More details can be found the gas accounting documentation.
What more is there to know?#
Gas Units is an amount of gas used to execute a particular transaction or deployment.
Gas Limit is an amount of ZIL, defined as a QA amount, where if the contract execution gas cost will increase and overflow the limit. The whole transaction errors and reverts. Your gas is fully consumed if rolled back.
Gas Price is an amount you will pay for a unit of Gas. If the user increased gas price by * 2 - the gas units have stayed the same, but you are now paying twice as much for those units.