Messages in this thread | | | Date | Wed, 12 Dec 2007 12:46:13 -0500 | Subject | Re: A peek at the future of storage | From | "J. Bruce Fields" <> |
| |
On Wed, Dec 12, 2007 at 08:46:18AM -0800, Daniel Phillips wrote: > Incidentally, we ran our tests with 128 knfsd threads. The default of 8 > threads produces miserable performance on the SSD, which gave us a good > scare on our initial test run. It would be very nice to implement an > algorithm to scale the knfsd thread pool automatically, in order to > eliminate this class of thing that can go wrong. If somebody became > inspired to take on that little project that would be great, otherwise > it is in our pipeline for, hmm, Christmas delivery. (Exactly which > Christmas is left unspecified.)
People have proposed writing a daemon that just reads /proc/net/rpc/nfsd periodically and uses that to adjust the number of threads from userspace, probably subject to some limits in a config file someplace. (Think that could do the job, or is there some reason this would be easier in the kernel?)
--b.
| |