Fix NRT test failure due to increased overhead when running in coverage
Fix NRT test failure due to increased overhead when running in coverage

sklam/numba,numba/numba,stuartarchibald/numba,stonebig/numba,stonebig/numba,gmarkall/numba,cpcloud/numba,stonebig/numba,jriehl/numba,numba/numba,numba/numba,sklam/numba,seibert/numba,stuartarchibald/numba,jriehl/numba,jriehl/numba,sklam/numba,stuartarchibald/numba,cpcloud/numba,IntelLabs/numba,stuartarchibald/numba,IntelLabs/numba,IntelLabs/numba,IntelLabs/numba,jriehl/numba,seibert/numba,cpcloud/numba,numba/numba,IntelLabs/numba,seibert/numba,seibert/numba,gmarkall/numba,stuartarchibald/numba,gmarkall/numba,cpcloud/numba,jriehl/numba,gmarkall/numba,sklam/numba,numba/numba,seibert/numba,stonebig/numba,stonebig/numba,sklam/numba,gmarkall/numba,cpcloud/numba