Where is my bandwidth going?

Discussion in 'Software Q&A' started by Akshay, Feb 20, 2006.

Thread Status:
Not open for further replies.
  1. Akshay

    Akshay Active Member

    Joined:
    Aug 15, 2004
    Messages:
    1,121
    Likes Received:
    9
    Trophy Points:
    38
    Location:
    Pune
    I use gprs connection to connect to the net. DU Meter shows my speed as 3 - 10 KB/sec whereas Opera 9 shows d speed as 0.5 - 1.5 KB/sec. There are no updates in process (NAV, ZA and Windows Updates are not taking place). In this case which application is eating into my already mearge bandwidth?
     
  2. readermaniax

    readermaniax New Member

    Joined:
    Jul 19, 2005
    Messages:
    553
    Likes Received:
    0
    Trophy Points:
    0
    happens with me aslo ... i think what DU meter shows in kbPs
     
  3. RCuber

    RCuber The Mighty Unkel!!!

    Joined:
    Sep 7, 2004
    Messages:
    7,104
    Likes Received:
    12
    Trophy Points:
    38
    Location:
    ಬೆಂಗಳೂರು (Bengaluru)
    ea readermaniax is correct you must hav set dumeter to show BW in kbps where as opera shows bw in kBps
     
  4. Andyiz

    Andyiz New Member

    Joined:
    Sep 25, 2005
    Messages:
    173
    Likes Received:
    2
    Trophy Points:
    0
    Location:
    Mumbai
    reply


    Dumeter has the several options of displaying speed, use wat is apt for u !!
     
  5. readermaniax

    readermaniax New Member

    Joined:
    Jul 19, 2005
    Messages:
    553
    Likes Received:
    0
    Trophy Points:
    0
    now i have changed kbps to kb/sec
     
  6. OP
    OP
    Akshay

    Akshay Active Member

    Joined:
    Aug 15, 2004
    Messages:
    1,121
    Likes Received:
    9
    Trophy Points:
    38
    Location:
    Pune
    opera shows KB/s whereas dumeter shows kB/s. is thr a difference betn KB and kB?
     
  7. nishant_nms

    nishant_nms New Member

    Joined:
    Sep 5, 2005
    Messages:
    1,344
    Likes Received:
    1
    Trophy Points:
    0
    Location:
    Pune
    @Akshay No man
     
  8. readermaniax

    readermaniax New Member

    Joined:
    Jul 19, 2005
    Messages:
    553
    Likes Received:
    0
    Trophy Points:
    0
    ~~opera shows KB/s whereas dumeter shows kB/s. is thr a difference betn KB and kB?~~

    Kbps and KB/sec
    Kbps = KB/sec this is the same

    next.. the meat and potatoes..
    6-8 Kb/sec = estimated/calculated/approximated download speed..
    translates to 6Kb*60 seconds = 360Kb/min (roughly 33% or 1/3 MB)

    1 MB = 1024 KB = 1.048.576 bytes
    5 MB = 5120 KB = 5.242.880 bytes
    1 min = 60 sec = 1/60 hr
    11 min = 660 sec = 11/60 hr

    5.242.880 bytes / 660 sec = 7943.7575757575757575 b/sec

    convert to kilobytes..
    7943.757575757575757575 bytes / 1024 = 7.757575 Kb in one second

    so your estimate of 6-8Kb/sec is right on and 11 minutes is about right.

    synopsis:

    1TB = 1024GB = 1.048.576MB = 1.073.741.824KB = 1.099.511.627.776 bytes.. not bits
    thats next..

    any of the above TB, GB, MB, KB, bytes etc.. etc.. multiplied by an amount of time
    equals amount/time e.g. : Kb/sec or b/sec

    now for bits vs bytes..
    8 bits to 1 byte

    the letter 'A' in ascii is represented as a binary value of '01000001' <see all 8 bits?
    so the letter 'A' = 1 byte or 8bits

    http://www.daniweb.com/techtalkforums/thread9599.html
     
  9. alib_i

    alib_i New Member

    Joined:
    Jun 24, 2004
    Messages:
    1,191
    Likes Received:
    2
    Trophy Points:
    0
    Location:
    omnipresent
    @readermaniax ..
    can you explain to me .. what exactly have you written here.

    as far as i can understand .. it's totally and entirely incoherent.

    who's estimate... who said 11mins !

    ughh .. what ?

    I dont think anybody was confused in that ... 'ps' in 'kbps' is 'per second'
    so .. kbps has to be same as kb/sec

    I think you got it all wrong.

    Let me try to explain the same thing.

    1st thing ..
    bits = represented by small "b"
    bytes = represented by capital 'B"
    1byte = 8bits

    So, most probably your Opera is showing ~1KBps and your DUmeter is showing ~8Kbps
    and 1KBps=8Kbps .. so everything is alright .. nothing is lost


    Coming to the more confusing part ..
    small "k" = 1000
    capital "K"= 1024

    So, 1kbits = 1000bits
    but 1Kbits = 1024bits
    Same logic doesnt necessarily apply to capital/small "M" for megabits or megabytes
    Although it's not formally suggested .. but widely accepted that small k=1000 and capital K=1024
    It's just a convention ..


    • Usually .. network speeds are expressed in 1024 multiples ..
      ie 1Mbps = 1024Kbps = 1024*1024bps
    • RAM sizes are also expressed in 1024 multiples
    • But harddisk sizes are expressed in 1000 multiples.. ie. a 40GB drive has 40*1000*1000*1000 bytes.
      (note that it has capital "B" .. hence bytes .. not bits)
      Just a convention !!

    Hope I made things clear.


    -----
    alibi
     
  10. OP
    OP
    Akshay

    Akshay Active Member

    Joined:
    Aug 15, 2004
    Messages:
    1,121
    Likes Received:
    9
    Trophy Points:
    38
    Location:
    Pune
    thnx alibi... got it...
     
Thread Status:
Not open for further replies.

Share This Page