On 20 October 2012 14:45, Rick Macklem <[email protected]> wrote: > Ivan Voras wrote:
>> I don't know how to interpret the rise in context switches; as this is >> kernel code, I'd expect no context switches. I hope someone else can >> explain. >> > Don't the mtx_lock() calls spin for a little while and then context > switch if another thread still has it locked? Yes, but are in-kernel context switches also counted? I was assuming they are light-weight enough not to count. > Hmm, I didn't look, but were there any tests using UDP mounts? > (I would have thought that your patch would mainly affect UDP mounts, > since that is when my version still has the single LRU queue/mutex. Another assumption - I thought UDP was the default. > As I think you know, my concern with your patch would be correctness > for UDP, not performance.) Yes. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
