Hi, Yes, a monotonic *must* be used to compute timeouts. I wrote the time.monotonic() function of Python 3.3 and the PEP 418. For my Trollius project, I wrote this code for Python 2 using ctypes. It works on Linux, Windows, Mac OS X, OpenBSD, FreeBSD and Solaris: https://bitbucket.org/enovance/trollius/src/5e45fc18fce0b34a47481916a274dace7f2964f4/asyncio/time_monotonic.py?at=trollius
There are existing Python modules, examples: https://github.com/gavinbeatty/python-monotonic-time https://github.com/ludios/Monoclock Any other many projecs have their own implementation. Read also the 418 for the background: http://legacy.python.org/dev/peps/pep-0418/ FYI On Linux, since the glibc 2.17, clock_gettime() is provided by the libc. On older glibc versions, it is provided by librt. Victor ----- Mail original ----- > De: "Yuriy Taraday" <yorik....@gmail.com> > À: "OpenStack Development Mailing List (not for usage questions)" > <openstack-dev@lists.openstack.org> > Envoyé: Vendredi 7 Mars 2014 08:52:56 > Objet: Re: [openstack-dev] time.sleep is affected by eventlet.monkey_patch() > > On Fri, Mar 7, 2014 at 11:20 AM, Yuriy Taraday < yorik....@gmail.com > wrote: > > > > All in all it sounds like an eventlet bug. I'm not sure how it can be dealt > with though. > > Digging into it I found out that eventlet uses time.time() by default that is > not monotonic. There's no clear way to replace it, but you can workaround > this: > 1. Get monotonic clock function here: > http://stackoverflow.com/a/1205762/238308 (note that for FreeBSD or MacOS > you'll have to use different constant). > 2. Make eventlet's hub use it: > eventlet.hubs._threadlocal.hub = > eventlet.hubs.get_default_hub().Hub(monotonic_time) > > -- > > Kind regards, Yuriy. > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
