Gas Optimizations

[code423n4]

Pre-incrementing is cheaper than post-incrementing
Consider replacing e.g. i++ with ++i.

Instances:
KernelUtils.sol: 49 64

 

Function not called by the contract can be external instead of public

Instances:
Kernel.sol: 95 100 439 451
TRSRY.sol: 47 79
MINTR.sol: 20 25 33 37
RANGE.sol: 110 115 219
PRICE.sol: 108 113
VOTES.sol: 22 27 45 55
INSTR.sol: 23 28 37
Governance.sol: 145 151

 

Pre-compute .length before repeated usage, especially in loops

Instances:
Governance.sol#L278

 

observations.length is already computed in numObservations
uint256 numObs = observations.length;can be changed into uint256 numObs = numObservations; as suggested by its preceding comment, because its length is already calculated during construction.
PRICE.sol#L212