From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 23 Feb 2016 21:21:28 +0100 From: tlaronde@polynum.com To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Message-ID: <20160223202128.GA1718@polynum.com> References: MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: Re: [9fans] rtl8169 gbe slow Topicbox-Message-UUID: 89970444-ead9-11e9-9d60-3106f5b1d025 On Tue, Feb 23, 2016 at 08:35:04PM +0100, hiro wrote: > downloads.kergis.com is some http server operated by OVH. > > it would be easier to post a pcap from a transfer where you control > both sides and possibly enable debugging of window sizes, timeouts, > packet loss, etc. in tcp.c like erik did. Both sides won't be possible (at least for me). What I plan to do is tcpdump/snoopy the interface under NetBSD and Plan9 (from the very same workstation), when downloading the "test" file, and look, separately the two pcap and then compare the processing (I might even go as far as compare the plan9 implementation with the 4.4BSD-lite). But for the moment, I have taken down from the shelf Stevens TCP/IP illustrated, since my knowledge needs both to be refreshed and to be enhanced... (This means that it will take some time.) > > On 2/23/16, erik quanstrom wrote: > > I saw this. I'm not looking at the pcap file > > > > On Feb 23, 2016 10:38 AM, hiro <23hiro@gmail.com> wrote: > >> > >> i didn't see any out-of-window rx in the pcap. did i look the wrong way? > >> > >> > > -- Thierry Laronde http://www.kergis.com/ http://www.arts-po.fr/ Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C