I have a problem with slow login times in Yosemite. Logging in is speedy after booting, but after a while (a few days usually) it slows down and can take 20-30 seconds. The time to load a new Terminal window / tab also increases. If I reboot, the problem is fixed...for a while. I tried the answers in this question and nothing seemed to work. I ran the profiling suggested here and this part of the output looks suspicious:
+ ! 8118 ??? (in login) load address 0x10583c000 + 0x2a8f [0x10583ea8f] + ! 8118 openpam_dispatch (in libpam.2.dylib) + 277 [0x7fff86957a7d] + ! 8117 ??? (in <unknown binary>) [0x1058c4bf2] + ! : 8117 ??? (in <unknown binary>) [0x1058c40e9] + ! : 8117 ODRecordAuthenticationAllowed (in CFOpenDirectory) + 258 [0x7fff9161df85] + ! : 8117 transaction_simple (in CFOpenDirectory) + 448 [0x7fff91615274] + ! : 8117 _dispatch_semaphore_wait_slow (in libdispatch.dylib) + 213 [0x7fff955c07f6] + ! : 8117 semaphore_wait_trap (in libsystem_kernel.dylib) + 10 [0x7fff882b751a]
But further Googling hasn't turned up anything helpful for solving the problem. Any ideas on how I can further diagnose or fix this issue?