Date: Tue, 5 Jan 2016 11:52:31 -0600 From: "Eric A. Borisch" <eborisch@gmail.com> To: "Mikhail T." <mi+thun@aldan.algebra.com> Cc: Matt Churchyard <matt.churchyard@userve.net>, Bruce Evans <brde@optusnet.com.au>, freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: Mb vs. MB (Re: NFS reads vs. writes) Message-ID: <CAASnNnpBp8j38qHt_YD7CTqae0Ao6cCnRre7iqcZTuSB2kmY=w@mail.gmail.com> In-Reply-To: <568BFB63.5090203@aldan.algebra.com> References: <8291bb85-bd01-4c8c-80f7-2adcf9947366@email.android.com> <5688D3C1.90301@aldan.algebra.com> <495055121.147587416.1451871433217.JavaMail.zimbra@uoguelph.ca> <568A047B.1010000@aldan.algebra.com> <CAGtEZUD28UZDYyHtHtzXgys%2Brpv_37u4fotwR%2BqZLc1%2BtK0dwA@mail.gmail.com> <20160105143542.X1191@besplex.bde.org> <568B574A.7010603@aldan.algebra.com> <c1ab44c1859a422e8941c5ac09cea35f@SERVER.ad.usd-group.com> <568BFB63.5090203@aldan.algebra.com>
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On Tue, Jan 5, 2016 at 11:20 AM, Mikhail T. <mi+thun@aldan.algebra.com> wro= te: > On 05.01.2016 05:45, Matt Churchyard wrote: >> You have a different book to most then. >> I've always understood 'b' to mean bits, and 'B' to mean bytes. While ev= eryone on here will understand what you were trying to say in context, give= n purely that number, I would expect most people to interpret it as 90+Mb/s= =3D ~11+MB/s. That is not what you meant, hence why Bruce said be careful = with the units. > I've always found "megabit" to be a useless unit, owning its entire > existence to marketing liars trying to make their wares have more > impressive numbers. Unless the conversation is about information theory, > or CPU-registers and bitfields, any mention of "bit" is useless and > misleading. To (hopefully) end this off-topic discussion, there is a standard, and b =3D=3D bits, and B =3D=3D bytes (usually 8 * b). https://en.wikipedia.org/wiki/IEEE_1541-2002 [...] bit (symbol 'b'), a binary digit; byte (symbol 'B'), a set of adjacent bits (usually, but not necessarily, eight) operated on as a group; [...] It is terribly important ( =3D=3D not useless ) in digital communications, where bits are the basic unit of transferred data, distinct from the signaling rate (bd), but I digress... - Eric
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