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Are there any differences between these 2 examples:
Do multiple segments make it easier for APC to clean up stale entries?
By default, some systems (including most BSD variants) have very low limits on the size of a shared memory segment, so to give APC access to more memory, because you can’t increase the size of each segment, you have to increase the number of segments.
Seems like there should be just 1 setting where you say “Give APC this much memory” and it automatically figures out what to do based on your system configuration… but that’d require inspecting your configurations etc, so they just leave it up to you to configure it properly 🙂
Because it seems there are only 2 settings to account for the fact that some systems are gimpy when it comes to the size it allows, I would go for 1 big segment whenever possible.
Doesn’t seem like it should affect performance one way or the other, though.