Date: Tue, 28 Aug 2018 22:54:04 -0700 From: Eitan Adler <lists@eitanadler.com> To: Alexander Leidinger <Alexander@leidinger.net> Cc: freebsd-current Current <freebsd-current@freebsd.org> Subject: Re: old top and new -current: missing arcstat sysctl Message-ID: <CAF6rxgmg5AMn60zakek6sYBaQBhG6ROe4T5SH7ZpvEN%2B3=N7fw@mail.gmail.com> In-Reply-To: <20180829074431.Horde.NYx7i7jvhNMNuTj-hSYfzSk@webmail.leidinger.net> References: <20180828084015.Horde.JUeG828X_SDlJjeJdfmH7pV@webmail.leidinger.net> <d7834f4e-f1ca-c02a-6fe1-472b8737058c@freebsd.org> <20180828144842.GA29917@raichu> <20180829074431.Horde.NYx7i7jvhNMNuTj-hSYfzSk@webmail.leidinger.net>
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On Tue, 28 Aug 2018 at 22:46, Alexander Leidinger <Alexander@leidinger.net> wrote: > > > > IIRC that would have been the inverted case of running a newer top(1) > > with an older kernel lacking the v_laundry_pages sysctl. In general I'd > > expect us to support running an older top(1) with newer kernels if we > > don't have to bend over backwards to provide compatibility. > > If the new top is summing the 3 up anyway, it sounds like we could > provide the old one as backwards compatibility, even if it is > redundant. I rather have an redundant counter and an old top working > (in the generic case of what we promise to our users; in this specific > case for me I just need to get around to update the jails on the > corresponding systems), than bailing out without displaying anything. I'd support this but don't feel like it justifies breaking the freeze. After the 12.x freeze is over I'll implement this. -- Eitan Adler
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