I currently have my apc.gc_ttl
set to 600
to help keep fragmentation down.
Since apc.gc_ttl
just sets the time on cache for garbage collection, I don't see any harm in keeping it this low.
However, I'm new to APC, and have seen many configurations online that use a 3600 TTL, which seems quite long to me for garbage collection cache...
Is 600
too low? Is 3600
too high?
As I'm sure mileage varies on this setup, is there a good rule of thumb to follow?