[galaxy-user] problem with the joining of two interval dataset

Hi every body I tried to perform a joining task on two interval dataset. The 1st had 1500 region and the second one about 2 million region.The job is still running (more than 4 hours) and it has affected system performance. I'm not sure it is normal or not. If not, I don't know it's the matter ofgalaxy limitations or my pc's hardware configurations. Any help would be appreciated.  I am running galaxy local on bio-linux7 (win8 / bio-linux7 dual boot system) system configurations : CPU : core i7 9610 (6M) RAM : 8 G linux swap : 8 G linux root : >700 G   Milad Bastamis, Department of Medical Genetics Shahid Beheshti's university of Medical Science