Martin Burmester <
martin@burmester.org> writes:
what is the cost of setting the inn flag -u and having the news log unbuffered in this day and age (modern cpu, fast ssd storage, etc.)?
Does it really make a difference?
It doesn't matter much to CPU; it's all about the relatively high cost of persisting small amounts of data to storage instead of writing larger
blocks of data at a time.
A fast SSD will mitigate any performance problems but I'm not sure it will remove them. That said, I haven't tested.
Personally, I would also not want to increase the number of write cycles
to an SSD unless there's some compelling reason, but this may just be superstition on my part. (As recently as 2019 I was still seeing
excessive write traffic cause server-grade SSDs to fail significantly
before their expected lifetime.)
--
Russ Allbery (
eagle@eyrie.org) <
https://www.eyrie.org/~eagle/>
Please post questions rather than mailing me directly.
<
https://www.eyrie.org/~eagle/faqs/questions.html> explains why.
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