lkml.org 
[lkml]   [2001]   [Dec]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Changing KB, MB, and GB to KiB, MiB, and GiB in Configure.hel
    At 03:20 PM 12/22/01 +0000, Alan Cox wrote:
    >It gets worse the deeper you go. Over an HDLC based link for example
    >sequences of five one bits take longer to send due to bitstuffing. Any
    >networking terminology is generally grossly simplified.

    Interestingly, the subject of bit-stuffing came up during the discussion of
    modem testing, because of the HDLC framing used in V.42 error
    control. Statistics provided by the representative from Hayes (R.I.P.)
    showed that bit-stuffing occurred in roughly 1 out of 64 bits in the data
    path when V.42 bis data compression was enabled. The 1:63 ratio held over
    a surprisingly wide range of data patterns, all the way from repeated
    single characters through text in English, French, German, and Chinese to
    the output of a 64-bit random number generator. When v.42 bis data
    compression was disabled, the average ratio was about the same but there
    was considerably more spread because of data pattern sensitivity.

    Which is grossly off-topic but I thought a few of you might be interested.

    Stephen Satchell

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:14    [W:2.669 / U:0.356 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site