On Tue, Jul 2, 2013 at 6:48 PM, Andriy Gapon <a...@freebsd.org> wrote: > on 03/06/2013 20:36 Konstantin Belousov said the following: >> Author: kib >> Date: Mon Jun 3 17:36:43 2013 >> New Revision: 251322 >> URL: http://svnweb.freebsd.org/changeset/base/251322 >> >> Log: >> Be more generous when donating the current thread time to the owner of >> the vnode lock while iterating over the free vnode list. Instead of >> yielding, pause for 1 tick. The change is reported to help in some >> virtualized environments. > > Kostik, > > I've just run into a problem where word "generous" does not seem to be > applicable at all unless I am mistaken about how the code works.
While "ticks" is signed it is used as an unsigned int. td_swvolticks is always derived by ticks, which again will always be used as an unisgned and then the subtractions among the 2 will be consistent. Attilio -- Peace can only be achieved by understanding - A. Einstein _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
