[rafekett]

I don't think it makes sense to choose your logging framework based on performance. Logging does IO, so it's relatively slow compared to everything else you do -- but operationally it's invaluable. I'd take the performance overhead any day.

If you have to ask how much logging costs, you probably can't afford it.

[techdragon]

You say that but if it means you double your per server costs to handle the overhead. Hard to justify. Logging should be efficient. It must be to scale from Large to small.

[rafekett]

If logging doubles your per server costs then you're doing it wrong. The amount of noise you'd have to be producing there would make logs useless anyway.

I agree logging has to scale, but it doesn't look like there's any substantial difference between anything benchmarked (it'd have to be at least an order of magnitude for me to care).