For the month (June 18 - July 18) in the PADLS TOTAL rule 51 experiment, about 458130 CFs ODLS were found.

I did not check the solutions for uniqueness, since I do not have a common database of ODLK and ODLK1 projects.
Partial checks for uniqueness showed few intersections.

Tomáš Brada
It is interesting to see the published processed results.

The full report on the results is here
https://boinc.progger.info/odlk/forum_thread.php?id=104

Not sure how much file io there is when checkpointing, especially if on old slow hard drives, but this task (that got the credit) ran for over 3 days,
https://boinc.tbrada.eu/result.php?resultid=295454

It looks like it was checkpointing like there was no tomorrow, did it spend most of its time checkpointing rather than doing the calculation ?

Try changing your computing preferences to only checkpoint every 300 seconds and see if that improves things.

Hoot, Hoot. Looks like I got a couple finished:
https://boinc.tbrada.eu/result.php?resultid=526146
https://boinc.tbrada.eu/result.php?resultid=526147