# Agent Gas Values

### Context <a href="#context" id="context"></a>

Gas estimation is hard. `eth_estimateGas` calls have historically caused our agents many issues across different RPC providers and networks. Given that we now have a reasonable dataset on how much gas is needed for different contract methods, we are moving to custom-coding our gas limits using estimates from previous gas usage data.

### Standard EVM <a href="#standard-evm" id="standard-evm"></a>

#### Home <a href="#home" id="home"></a>

Update:

* Take average limit for one message (50k) and double base to 100k
* Each additional message dequeued is \~5k gas so double that cost to 10k per message
* `100k + (num_messages * 10k)`

Improper Update:

* Subset of `update` gas (`update` calls `improperUpdate`)
* Using same estimation as `update`
* `100k + (num_messages * 10k)`

DoubleUpdate:

* Signature check is \~`50k`
* Double that for two signature checks in double update `100k`
* Double total for safety to `200k`

#### Replica <a href="#replica" id="replica"></a>

Update:

* `70k` on average
* Double that to `140k` (constant)

Prove:

* `100k` on average
* Double that to `200k` (constant since merkle proofs always same size)

Process:

* Minimum `850k` required
* Double minimum to `1.7M`

ProveAndProcess:

* `1.7M` for process
* `200k` for prove
* `1.9M` total

DoubleUpdate:

* Signature check is \~`50k`
* Double that for two signature checks in double update `100k`
* Double total for safety to `200k`

#### XAppConnectionManager <a href="#xappconnectionmanager" id="xappconnectionmanager"></a>

UnenrollReplica:

* `60k` average
* Double that to `120k`

OwnerUnenrollReplica:

* Cheaper version of normal `unenrollReplica` without signature check
* Use same estimate of `120k`


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