Proposal - drop the GPSD JSON driver

Eric S. Raymond esr at
Thu Oct 20 04:02:38 UTC 2016

Gary E. Miller <gem at>:
> So, a shared memory driver for ntpd?

It already has one.  I think the one it has would be as good as we need
if not for the fact that that version of SHM is obsolete and unstandardized.

> > I don't think either is going to match the performance of a
> > shared-memory drop.
> So, we all vote for JSON in POSIX SHM?

I don't.  I think this is one of the very rare cases where passing a C struct
as a binary blob makes sense.  We want to minimize offset and jitter and
there's no cross-architecture problem.
		<a href="">Eric S. Raymond</a>
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