Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com From: "Carlos Romero Mas" To: Subject: Extremely slow transfer related to ssh Date: Tue, 25 Nov 2003 14:16:52 +0100 Organization: =?iso-8859-1?Q?Servicio_Central_de_Inform=E1tica._UMA.?= Message-ID: <001801c3b356$643f3850$2228d696@sci.uma.es> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id hAPDH0O6015339 Since I have moved to Windows XP I am experiencing extremely slow transfers using ssh related tools (rsync -essh, scp) I have installed last version, searched for problems like this into the mailing lists, and i have found: cygwin deadlocks due to broken select() when writing to pipes http://sources.redhat.com/ml/cygwin/2003-10/msg01810.html And Re: scp slow against cygwin sshd http://sources.redhat.com/ml/cygwin/2003-09/msg00311.html Then I have run strace -m 0x00040 and it seems the problem sounds similar to first reference: ..... 138 2579039 [main] scp 3376 readv: no need to call ready_for_read 43 2579082 [main] scp 3376 fhandler_base::read: returning 2048, binary mode 139 2579221 [main] scp 3376 fhandler_base::write: binary write 51 2579272 [main] scp 3376 fhandler_base::write: 2048 = write (0xA041AC8, 2048) 138 2579410 [main] scp 3376 readv: no need to call ready_for_read 46 2579456 [main] scp 3376 fhandler_base::read: returning 2048, binary mode 137 2579593 [main] scp 3376 fhandler_base::write: binary write 1103362 3624741 [main] ssh 1664 dtable::select_read: /dev/tcp fd 3 716 3625457 [main] ssh 1664 select_stuff::wait: m 2, ms 4294967295 21248331 24873788 [main] ssh 1664 dtable::select_read: /dev/tcp fd 3 81 24873869 [main] ssh 1664 dtable::select_write: /dev/tcp fd 3 75 24873944 [main] ssh 1664 dtable::select_read: /dev/piper fd 4 687 24874631 [main] ssh 1664 select_stuff::wait: m 3, ms 4294967295 1622 24876253 [read_pipe] ssh 1664 fhandler_base::read: returning 16384, binary mode 22353570 24933163 [main] scp 3376 fhandler_base::write: 2048 = write (0xA041AC8, 2048) 253 24933416 [main] scp 3376 readv: no need to call ready_for_read 69 24933485 [main] scp 3376 fhandler_base::read: returning 2048, binary mode 182 24933667 [main] scp 3376 fhandler_base::write: binary write Thank you for this great software. Carlos. -- Tecnico de Sistemas Servicio Central de Informatica Universidad de Málaga España -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/