I recently (two days ago) updated to El Capitan on my work machine (15" MBP, Mid 2015, 2.5 GHz Core i7, 16GB ram, R9 M370X, 500GB SSD) and ever since then, Spotlight has been draining my battery and causing the fans to spin like it's about to take off from my desk. My battery life has gone from about 6-7 projected hours pre-update to only 3 until it's completely drained.
I initially thought that Spotlight was simply indexing and using high amounts of energy in the process, but 1. it shouldn't be indexing for almost three full days (I don't have very much data stored on the disk at all) 2. the process for indexing is usually called 'mdutil' rather than the actual 'Spotlight' process and 3. Spotlight would usually display a progress bar when it's actually indexing.
I've rebooted multiple times, tried force quitting the Spotlight process (but it just turns back on and uses the same energy) and tried turning mdutil on and off and forcing reindexing (to no effect, most likely because indexing is not the root issue?).
Does anyone know what might be causing this issue?
I updated to El Capitan on my personal Mac way back when it first came out last fall and I never had this issue. Nor do any of the coworkers I've talked to now.
Any help would be greatly appreciated.