Il 24/07/2013 10:37, Alex Bligh ha scritto: > > > --On 24 July 2013 09:01:22 +0100 Alex Bligh <a...@alex.org.uk> wrote: > >>>> Most 'reasonable' POSIX compliant operating systems have ppoll >>> >>> Really? I could find no manpages for any of Solaris and *BSD. >> >> OK I shall (re)research that then! I suppose select() / pselect() is >> an alternative when there are few FDs. > > Looks like I was wrong. However, pselect support is pretty wide.
Yes, on the other hand we only recently switched from select() to poll(). I guess using ms resolution wouldn't be too bad for non-Linux. After all before dynticks support was added to the alarm timer, it used to use /dev/rtc or /dev/hpet -- which is very precise but only has ms resolution too. We might not care about the slack either, in practice. TCG timing sucks anyway, and for KVM/Xen most relevant device models are in the kernel. Paolo
