# k6 SharedArray A [SharedArray](https://k6.io/docs/examples/data-parameterization/) in [[k6 (tool)|k6]] is a library that can be used to more efficiently send [[Test Data]] to different [[Load generators]]. A common problem with test data is that very large test data files may influence the results of the load test due to the resource requirements their size poses. Instead of sending multiple copies of a test data file to a load generator, you should use a SharedArray that sends only the part of the array that each load generator requires, reducing unnecessary network requests and preventing high resource utilization.