Hello, After updating one of my machines to a more recent snapshot I noticed that networking speed was reduced and that the machine was 'less' responsive. Quick look in systat revealed that softnet was hammering the processor (>90% interrupt on CPU0). After reverting to a backup (older kernel) the issue with softnet claiming the processor was gone.
I once more attempted the more recent kernel disabling queuing in pf (wild guess). This resolved my issue with networking speed. After some digging in the CVS log I noticed that revision 1.21 of sys/net/hfsc.c [0] altered code related to pf queueing. A test, using a kernel without the above changeset, results in a machine that is behaving as expected. As I do not understand the changed code I was wondering if there is a reason why the commit has such an impact on the system resulting in a decreased networking speed? [0] http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/net/hfsc.c.diff?r1=1.20&r2=1.21&f=h -- Björn Ketelaars GPG key: 0x4F0E5F21
