My iMac (early 2009) is super slow and spotlight and timemachine doesnt work at all. I am suspecting the the spotlight index (which never seem to finish) is behind some of the performance issues. I have reset the spotlight index and deleted the old files and restarted indexing. I am snooping the progress with this command:
sudo opensnoop -n mdworker and then I can see that the indexing seems to halt on
0 169 mdworker 5 /.vol/16777218/695996
I suspect that this is a calendar event? How can I see if spotlight indexing is crashing and restarting? I have let it run for hours and it never finishes.