Maybe I'm wrong, but MBS is MegaBytes/Sec and MbS is MegaBits/Sec. KBS is KiloBytes/Sec and KbS is KiloBits/Sec.
So you want 200KBS which is about 1600KbS, which is 1.6MbS. If I've got the math and numbers right here, then 200KBS this should not be a problem at all. Bill From: [email protected] [mailto:[email protected]] On Behalf Of yueyue papa Sent: Thursday, February 04, 2010 9:23 AM To: Mailing list for lwIP users Subject: Re: [lwip-users] lwIP performance kbytes/s Is there any suggest performance for lwIP? eg: For ARM9 XX Mhz yyy kbytes/s ... I neeed to understand whether my 200k bytes/s is a reasonable speed in my 96M system. Otherwise I must find something to increase my network speed. Lee On Thu, Feb 4, 2010 at 6:44 PM, Kieran Mansley <[email protected]> wrote: On Wed, 2010-02-03 at 23:27 +0800, yueyue papa wrote: > Hi All, > > I make the 1.3.2 lwIP running in LAN environment. My CPU is about 96M > MIPS platform. > > FTP client is used as a download speed test, the current speed is > about 200k/s. Is it a reasonable speed for lwIP? > > I think the speed may be a bit slow, but I did not known the where is > the problem. I found the socket windows update will make the speed > down heavily. > > My performance tune process > 1> pull mode ==> interrupt mode > 20k /s ==> 30k/s > 2> removed some interrup delay and ... > 30k/s ==> 80k/s > 3> CPU freqent from 48M ==> 96M hz > 80k/s ==> 180k/s > 4> MSS 1K ==> 1460 > 180K/s ==> 196K/s What units are your measurements in? k/s could be Kilo-bits or Kilo-bytes. Your experiments suggest that your network speed is limited by CPU speed, as everything you change to make it faster has reduced the load on the CPU. Kieran _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
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