presto-main/src/main/java/io/prestosql/execution/scheduler/NodeSchedulerConfig.java/NodeSchedulerConfig/setMaxSplitsPerNode
class NodeSchedulerConfig:    @Config("node-scheduler.max-splits-per-node")
    public NodeSchedulerConfig setMaxSplitsPerNode(int maxSplitsPerNode)
    {
        this.maxSplitsPerNode = maxSplitsPerNode;
        return this;
    }