Deducing the I/O cost by increasing the capacity of the underlying database's caches

[hsyodyssey]

Currently, Geth's cache setting for the underlying LevelDB is based on the Default parameter. We can see here that it is about 256MB. Considering the original Geth will be deployed on devices with average performance, this default setting is relatively low.

Since the performance of our Sequencer is much higher, increasing the size of these caches will significantly reduce the underlying I/O cost.

Related codes:

• Node Config: https://github.com/scroll-tech/go-ethereum/blob/zkrollup/eth/ethconfig/config.go#L78
• Miner Config: https://github.com/scroll-tech/go-ethereum/blob/zkrollup/miner/stress/ethash/main.go#L177-L178
• LevelDB Config: https://github.com/scroll-tech/go-ethereum/blob/zkrollup/ethdb/leveldb/leveldb.go#L98-L99