Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1WXZu5-0003pj-9Q for bitcoin-development@lists.sourceforge.net; Tue, 08 Apr 2014 17:33:45 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.216.53 as permitted sender) client-ip=209.85.216.53; envelope-from=gubatron@gmail.com; helo=mail-qa0-f53.google.com; Received: from mail-qa0-f53.google.com ([209.85.216.53]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1WXZu4-0004kl-BX for bitcoin-development@lists.sourceforge.net; Tue, 08 Apr 2014 17:33:45 +0000 Received: by mail-qa0-f53.google.com with SMTP id w8so1269344qac.26 for ; Tue, 08 Apr 2014 10:33:38 -0700 (PDT) X-Received: by 10.224.66.4 with SMTP id l4mr6399610qai.70.1396978418746; Tue, 08 Apr 2014 10:33:38 -0700 (PDT) MIME-Version: 1.0 Received: by 10.140.90.42 with HTTP; Tue, 8 Apr 2014 10:33:18 -0700 (PDT) In-Reply-To: References: From: Angel Leon Date: Tue, 8 Apr 2014 13:33:18 -0400 Message-ID: To: Wladimir Content-Type: multipart/alternative; boundary=001a11c2905868a84004f68b62a3 X-Spam-Score: -0.6 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (gubatron[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1WXZu4-0004kl-BX Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] have there been complains about network congestion? (router crashes, slow internet when running Bitcoin nodes) X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Apr 2014 17:33:45 -0000 --001a11c2905868a84004f68b62a3 Content-Type: text/plain; charset=ISO-8859-1 Those clarifications are what I needed to hear. For some reason I started thinking about this last night and wanted to bring it up just in case it would help, but def. not necessary. Will get back to more low hanging fruit in the UI/UX as I get to know the project more. Gregory: "But there doesn't have to be and shouldn't just be one network transport for Bitcoin." is there a formal abstraction for a Transport layer? I suppose if there isn't it'll be there when needed. Thanks! http://twitter.com/gubatron On Tue, Apr 8, 2014 at 12:48 PM, Wladimir wrote: > > On Tue, Apr 8, 2014 at 6:13 PM, Angel Leon wrote: > >> I was wondering if the level of traffic a Bitcoin node gets is or will be >> so high that you have heard/will hear complains like the following: >> >> >> 1. a home router that crashes or slows down when its NAT pin-hole >> table overflows, triggered by many TCP connections. >> >> > The default maximum amount of connections is 125, which only happens if > you have a stable node that accepts incoming connections. The maximum > number of outgoing connections is always 8. > Should be no problem even for cheapass routers. > > >> 1. a home router that crashes or slows down by UDP traffic >> >> N/A - We don't use UDP > > >> 1. a home DSL or cable modem having its send buffer filled up by >> outgoing data, and the buffer fits seconds worth of bytes. This adds >> seconds of delay on interactive traffic. For a web site that needs 10 round >> trips to load this may mean 10s of seconds of delay to load compared to >> without bittorrent. Skype or other delay sensitive applications would be >> affected even more. >> >> Filling up the send buffer is certainly possible. > Adding throttling wouldn't be horribly hard, but this is postponed until > parallel block download is implemented, so that other peers will not get > stuck on your throttled node. > >> >> 1. >> >> I was wondering if we have or expect to have these issues in the future, >> perhaps uTP could help greatly the performance of the entire network at >> some point. >> > > There is enough lower-hanging fruit left. > > If you're interested in speeding up the performance I think it's important > to start with benchmarking and analysis to find out where the pain points > are. > > Wladimir > > --001a11c2905868a84004f68b62a3 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Those clarifications are what I needed to hear. For some r= eason I started thinking about this last night and wanted to bring it up ju= st in case it would help, but def. not necessary. Will get back to more low= hanging fruit in the UI/UX as I get to know the project more.

Gregory: "But there doesn't have to be and shouldn't just be one network= =A0trans= port for Bitcoin."
is there a formal abstraction for a Transport layer? I suppose if th= ere isn't it'll be there when needed.

Thanks!



On Tue, Apr 8, 2014 at 12:48 PM, Wladimi= r <laanwj@gmail.com> wrote:

=
On Tue, Apr 8, 2014 at 6:13 PM, Angel Leon <gubatron@gmai= l.com> wrote:
I was wondering if the= level of traffic a Bitcoin node gets is or will be so high that you have h= eard/will hear complains like the following:

  1. a home ro= uter that crashes or slows down when its NAT pin-hole table overflows, trig= gered by many TCP connections.

The default maximum amount of connections is 125, which on= ly happens if you have a stable node that accepts incoming connections. The= maximum number of outgoing connections is always 8.
Should b= e no problem even for cheapass routers.

<= div>
  1. a home router that crashes or slows down by UDP traffic
N/A - We don't use UDP

  1. a home DSL or cable modem having its se= nd buffer filled up by outgoing data, and the buffer fits seconds worth of = bytes. This adds seconds of delay on interactive traffic. For a web site th= at needs 10 round trips to load this may mean 10s of seconds of delay to lo= ad compared to without bittorrent. Skype or other delay sensitive applicati= ons would be affected even more.
Filling up the send buffer is= certainly possible.
Adding throttling wouldn't be horrib= ly hard, but this is postponed until parallel block download is implemented= , so that other peers will not get stuck on your throttled node.
I was wondering if we have or = expect to have these issues in the future, perhaps uTP could help greatly t= he performance of the entire network at some point.

There is en= ough lower-hanging fruit left.

If you're interested i= n speeding up the performance I think it's important to start with benc= hmarking and analysis to find out where the pain points are.
=A0
<= div>Wladimir


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