> (those familiar know the hash-rate fluctuates and
slows down towards the end)
Could someone explain this to me, why does it slow down towards the end?
Could someone explain this to me, why does it slow down towards the end?
https://hashcat.net/wiki/doku.php?id=frequently_asked_questi...
Then:
https://hashcat.net/wiki/doku.php?id=frequently_asked_questi...
It isn’t running a single thread at 100% GPU use until the end, it has to partition up the search space and balance how it creates possible passwords on the CPU, on the GPU, and based on the kind of attack patterns you asked for - and when it’s getting to the end of the search space, some of the search space partitions are done and the remaining ones aren’t enough to load the GPU fully, so hash throughout drops.
It might also be cruft building up over time with small memory leaks or imperfect memory management.
It's more likely the explanation above of something (not heat) accumulating over time and slowing down the processing.
Password cracking often uses rule lists to modify known passwords lists in some way (adding 123 to the end, for example). These get more complicated towards the end so they take more operations.