Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751149AbVJWKSY (ORCPT ); Sun, 23 Oct 2005 06:18:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751444AbVJWKSY (ORCPT ); Sun, 23 Oct 2005 06:18:24 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:61831 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S1751149AbVJWKSX (ORCPT ); Sun, 23 Oct 2005 06:18:23 -0400 Date: Sun, 23 Oct 2005 12:18:06 +0200 From: Pavel Machek To: Marcel Holtmann Cc: maxk@qualcomm.com, bluez-devel@lists.sourceforge.net, kernel list Subject: Re: Billionton bluetooth CF card: performance is 10KB/sec Message-ID: <20051023101806.GD1975@elf.ucw.cz> References: <20051022173152.GA2573@elf.ucw.cz> <1130059941.11428.81.camel@blade> <20051023094806.GB1975@elf.ucw.cz> <1130062204.11428.86.camel@blade> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1130062204.11428.86.camel@blade> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2410 Lines: 60 Hi! > > > so you say that the Nokia 6230 has PAN Profile support and you don't > > > need any PPP crap to get Internet access? This would be the first phone > > > I have seen so far. > > > > No, sorry, that was over ppp over rfcomm. With MSI dongle, I get > > 25KB/sec with n6230. With bluetooth CF card, I only get 10KB/sec. > > show me the "hcitool info ..." for the phone. Sorry, I do not have it here just now. Should be able to get it in a few days. > > > > Netdev watchdog complains a lot: > > > > > > > > Oct 22 18:53:57 amd pand[2439]: Bluetooth PAN daemon version 2.19 > > > > Oct 22 18:53:57 amd pand[2439]: Connecting to > > > > Oct 22 18:53:58 amd pand[2439]: bnep0 connected > > > > Oct 22 18:54:37 amd kernel: usb 3-1: USB disconnect, address 2 > > > > Oct 22 18:55:33 amd kernel: NETDEV WATCHDOG: bnep0: transmit timed out > > > > Oct 22 18:55:59 amd last message repeated 2 times > > > > Oct 22 18:56:51 amd last message repeated 5 times > > > > Oct 22 18:57:55 amd last message repeated 3 times > > > > Oct 22 18:59:03 amd last message repeated 7 times > > > > > > The transmit timeouts shouldn't be there. The question is now which side > > > is at fault. The host or the phone? > > > > This is against second linux box... Can't be the phone. > > >From Linux to Linux you can get something around 80KB/sec. Do you have > any other USB dongle to test this against, because I think the PCMCIA > card is the problematic part here. I agree that pcmcia card is problematic. No, I do not have any other usb dongles, but... billionton.n6230: 10KB/sec (ppp over rfcomm) MSI..n6230: 25KB/sec (ppp over rfcomm) MSI..billionton: 10KB/sec (bnetp) ...pretty much tells the story. I could do some obex transfers against k700 to test it a bit more. > If you go over RFCOMM to the phone you will almost never reach the full > speed, because most RFCOMM implementation on the phones are not really > good. The PPP is eating the rest of the bandwidth. Fortunately edge has limit of 25KB/sec or something like that, and bluetooth has 100KB/sec limit, so it is fast enough even with some added overhead. Pavel -- Thanks, Sharp! - 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/