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Date:      Tue, 18 Dec 2012 13:20:43 +0100
From:      Luigi Rizzo <rizzo@iet.unipi.it>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        Davide Italiano <davide@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>, freebsd-arch@freebsd.org
Subject:   Re: regarding r242905 ('us' argument to some callout functions) was Re: [RFC/RFT] calloutng
Message-ID:  <20121218122043.GB84347@onelab2.iet.unipi.it>
In-Reply-To: <CAJ-VmomGuKCmP3hzddSKMdvarSniEHAQRaOERverxwrq_POBkw@mail.gmail.com>
References:  <CACYV=-F7_imU-JsPfeOZEyEPGKO2PVm1w1W3VdsH3jGiDvnmBg@mail.gmail.com> <CA%2BhQ2%2BgyhRHkB9Y%2BeGADvbjvJxSNSjYC%2BTQX8-0mf9LUD1V2HA@mail.gmail.com> <CACYV=-G9sG1Oo%2Bgz3kXmdeK85P7%2BZZg1CnAPLvwCuAbNftmv6A@mail.gmail.com> <20121217192731.GA83405@onelab2.iet.unipi.it> <CACYV=-HvsHmTGxQdiFx0Gcj1CW-ZHzGZsj5WBucBp3BWCMwWCw@mail.gmail.com> <20121217211112.GA84347@onelab2.iet.unipi.it> <CAJ-VmomGuKCmP3hzddSKMdvarSniEHAQRaOERverxwrq_POBkw@mail.gmail.com>

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On Mon, Dec 17, 2012 at 01:22:59PM -0800, Adrian Chadd wrote:
> Personally, I'd rather see some consistently used units here..

bintime (or something similar) is the correct choice here.
If we are concerned about the size (128 bit) then we
can map it to a shorter, fixed point format, such
as sign+31+32 as phk was suggesting.

cheers
luigi



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