gnosis / dex-services / 5461

31%

push

travis-pro

Use smarter gas prices for solution submission (#1518)

Our current algorithm starts at fast gas price and increases the gas price
of the transaction by 50% every 30 seconds that the transaction hasn't
been mined up to the max gas economically viable gas price.
The new algorithm always uses the correct gas price according to our
smarter gas estimation which is based on the time it should take to mine
the transaction. This gas price is updated in short intervals and the
transaction is resubmitted if the gas price increases. The gas price is
still capped by economic viability.
This should lead to lower gas prices as we can pick a lower starting gas
price when there is still more time left to solve the batch and because
we never pick a gas price that is higher than what the gas station
predict we need to pay to get into the next block.

### Test Plan
Adjusted unit tests

14050 of 56014 branches covered (25.08%)

Branch coverage included in aggregate %.

3760 of 5875 relevant lines covered (64.0%)

40301.65 hits per line