×

Discussion Board

Results 1 to 6 of 6
  1. #1
    Regular Contributor
    Join Date
    Nov 2004
    Location
    minsk
    Posts
    432

    Question data speed estimate

    I can see that Symbian Wlan speed is very low compared to android or Ios , any idea whyit is too slow ? is it dude to some s60 issues?
    -J

  2. #2
    Nokia Developer Moderator
    Join Date
    Feb 2006
    Location
    Oslo, Norway
    Posts
    28,689

    Re: data speed estimate

    That is of course meaningless, those are all operating systems you are listing, while WLAN speed is mainly determined by hardware. So the actual device model matters (like newer models support 802.11b/g/n, but 3 years ago it was just 802.11b/g, you could check in the specification pages). It may also matter how speed is measured.

  3. #3
    Regular Contributor
    Join Date
    Nov 2004
    Location
    minsk
    Posts
    432

    Re: data speed estimate

    So Os has no impact on Wlan Speed?

  4. #4
    Nokia Developer Moderator
    Join Date
    Feb 2006
    Location
    Oslo, Norway
    Posts
    28,689

    Re: data speed estimate

    Quote Originally Posted by julie_777 View Post
    So Os has no impact on Wlan Speed?
    Since you mention S60, those devices support 802.11b/g. That can receive 2-3 megabytes at most in a second. The OS has nothing to do with that, and this amount of data is effortlessly manageable for Symbian running on a 3-400 MHz CPU.

  5. #5
    Super Contributor
    Join Date
    Mar 2003
    Location
    Finland
    Posts
    9,561

    Re: data speed estimate

    Howver, Symbian is/was in the past, at least, notoriously slow (inefficient) in handling WLAN traffic, so it is not just about WLAN hardware/drivers, but how the OS handles that (e.g., memory management).

  6. #6
    Nokia Developer Moderator
    Join Date
    Feb 2006
    Location
    Oslo, Norway
    Posts
    28,689

    Re: data speed estimate

    Inefficiency is very probable, as Symbian loves copying descriptors between processes. But I can not recall WLAN being very slow compared to other 802.11b/g devices (N95 vs. iPAQ something vs. Nexus One). In my particular development case bad things started when writing the received data to mass storage drive in small chunks (~1-2 kilobytes). Allocating a 20k buffer for collecting pieces (it was a BitTorrent-like protocol) helped a lot.

Similar Threads

  1. how to estimate physical size of CFbsBitmap
    By JackSu in forum Symbian User Interface
    Replies: 2
    Last Post: 2008-11-13, 10:25
  2. N95 write/read data max speed
    By BaRTaSs in forum General Development Questions
    Replies: 0
    Last Post: 2007-09-12, 14:17
  3. data speed over gprs (N30)
    By hncjm in forum Nokia M2M
    Replies: 1
    Last Post: 2003-11-13, 11:43
  4. Bluetooth data transfer speed
    By ellejay in forum Bluetooth Technology
    Replies: 1
    Last Post: 2002-08-26, 05:27

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
×