FetchSize/WSFetchSize: The connection options FetchSize and WSFetchSize can be used to adjust the trade-off between throughput and response time. In general, setting larger values for WSFetchSize and FetchSize will improve throughput, but can reduce response time.
WSPoolSize: WSPoolSize determines the maximum number of sessions the driver uses when there are multiple active connections to Google BigQuery. By increasing this number, you increase the number of sessions the driver uses to distribute calls to Google BigQuery, thereby improving throughput and performance. For example, if WSPoolSize is set to 1, and you have two open connections, the session must complete a call from one connection before it can begin processing a call from the other connection. However, if WSPoolSize is equal to 2, a second session is opened that allows calls from both connections to be processed simultaneously.
Note: The number specified for WSPoolSize should not exceed the amount of sessions permitted by your Google BigQuery account.
