On Thu, 24 Jan 2013 14:07:31 -0200, René Bernhardsgrütter
<rene.bernhardsgruet...@gmail.com> wrote:
I wouldn't say that. File transfers are affected by IO, not CPU.
I've read this somewhere several months ago and yesterday again here:
https://blogs.warwick.ac.uk/chrismay/entry/mod_x_sendfile/
Have you seen the second comment in that post? It links to another post in
the same blog saying this:
"We have two in day-to-day production at the moment. One serves about
60GB/day of dynamic web pages and it’s CPU sits around 10% – 15% all day
long. To be honest, a box with half as many CPUs would do the job just
fine – but it’s nice to know that should we get a sudden increase in load
on the app, we have more than enough headroom!"
The site serves tens of gigabytes per day with less than 15% CPU usage, so
I still think file transfers are basically IO-bound, not CPU-bound.
--
Thiago H. de Paula Figueiredo
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