NetBSD 5.0 statistics

Robert Watson rwatson at FreeBSD.org
Thu Apr 30 19:32:02 UTC 2009


On Thu, 30 Apr 2009, Oliver Pinter wrote:

> Is the FreeBSD's FS management so slow?
>
> http://www.netbsd.org/~ad/50/img15.html
>
> Or so big is the difference between the two cpu scheduler?

Also, there's a known and serious performance regression in CAM relating to 
tgged queueing, and the generic disk sort routine, introduced 7.1, which will 
be fixed in 7.2.  I can't speak more generally to the benchmarks -- we'll need 
to run them in a controlled environment and see if we can reproduce the 
results.

Robert N M Watson
Computer Laboratory
University of Cambridge


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