WIFI upload speed C# vs Android Java -

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i working on wifi boot loader embedded device. working fine, want increase speed. have c# client , android client device acting server. embedded device rather slow clients must sleep between data records while device writes program memory. here strange part: required sleep windows c# client 300ms while 800ms android. less of wait causes server send error. results in 8 minute operation in c# , 21 minutes in android. why this?

here loop in c#:

        (int line = 0; line < lines.count; line++) {             if (lines[line].startswith(";")) break;             byte[] sbytes = encoding.ascii.getbytes(lines[line]);             gstream.write(sbytes, 0, sbytes.length);             textboxterminal.appendtext(lines[line]);             textboxterminal.appendtext("\n");             application.doevents();             wait(300);             if (gstream.dataavailable) break;         }

here in android java:

       while((data = br.readline()) != null) {             if (data.startswith(";")) break;             dataoutputstream.writebytes(data + "\r");                  lines++;             mdata = lines + " lines of " + tlines + " sent";             mhandler.post(mshowdata);             dataoutputstream.flush();             thread.sleep(800);             if (inputstream.available() > 0) break;         }


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