speed up the deletion of jobs? you can try turning scheduling off, that might help. Other than that, the qdel operation is, unfortunately, just slow. I submitted 100k jobs, turned scheduling off and did a qselect | xargs qdel -W force, it took:
time qselect | xargs qdel -W force
just to give you an idea of how long it might take.
“FWIW, pbs_server.bin is crawling”
the server was responsive for me, i was able to do qstats and qselects. Qselect of 100k jobs took around 4 seconds. So, I’m not sure why it’s crawling for you. It might again be because I had scheduling turned off.