I have observed slow indexing and/or hashing in OSX which are expressed in the SSD disc which is nearly full (about 5% free space). This bug has been reported to me to exist in earlier OSXs too so not only OSX Yosemite. The system is Macbook Air 2013-mid. This bug may be related to the similar bug with long filenames which indexing and/or hashing takes much time in the same system and settings, here discussion.
I notice slow indexing and/or hashing in installing basic commands through homebrew and just doing basic search in Finder with long filenames:
- Slow rehashing (reported to me no indexing necessary) in nearly low SSD-memory system of Macbook air 2013-mid; I have reproduced it in OSX Yosemite 10.10.2 See this post here where patrix deleted my notice about slow indexing.
- Slow indexing and/or hashing also occurs in searching long filenames, discussion here.
To reproduce it, you need
- nearly low SSD memory
This indexing problem may be caused by handling of SSD memories and temporary memory.
How have you resolved the challenge of memory management in OSX? I do not know the level of memory when the problems starts to occur.