On Mon, 2012-10-15 at 22:26 +0200, Pawel Jakub Dawidek wrote: > On Mon, Oct 15, 2012 at 08:21:50AM +0000, Maxim Sobolev wrote: > > Author: sobomax > > Date: Mon Oct 15 08:21:49 2012 > > New Revision: 241576 > > URL: http://svn.freebsd.org/changeset/base/241576 > > > > Log: > > Add per-second scheduling into the cron(8). Right now it's > > only available via the new @every_second shortcut. ENOTIME to > > implement crontab(5) format extensions to allow more flexible > > scheduling. > > > > In order to address some concerns expressed by Terry Lambert > > while discussing the topic few years ago, about per-second cron > > possibly causing some bad effects on /etc/crontab by stat()ing > > it every second instead of every minute now (i.e. atime update), > > only check that database needs to be reloaded on every 60-th > > loop run. This should be close enough to the current behaviour. > > > > Add "@every_minute" shortcut while I am here. > > Do I read the code correctly and the cron deamon will wake up every > second now even if @every_second is not used at all?
It appears to, which I don't think is a bad thing at all. But the way it waits is to wake up, do some work, and go back to sleep for an integer 1 second. That will occasionally lead to a second in which no wakeup happens, as the "do some work" part always takes some fraction of a second. -- Ian _______________________________________________ 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"
