X-Spam-Check-By: sourceware.org To: cygwin AT cygwin DOT com From: =?ISO-8859-1?Q?Ren=E9_Berber?= Subject: Re: very poor cygwin scp performance in some situations Date: Mon, 27 Mar 2006 19:30:01 -0600 Lines: 25 Message-ID: References: <048501c651b8$0862c1c0$a501a8c0 AT CAM DOT ARTIMI DOT COM> <001401c651d0$872c9090$b3db87d4 AT multiplay DOT co DOT uk> <89F9E813-1E27-4FEE-9359-6C73A8CD871A AT ptnix DOT com> <005a01c651ee$4dd35680$b3db87d4 AT multiplay DOT co DOT uk> <801E2E71-2C61-46B7-9CEE-77838077FD3E AT ptnix DOT com> <006f01c651f3$40250ab0$b3db87d4 AT multiplay DOT co DOT uk> <00b601c651f6$b8aeb5a0$b3db87d4 AT multiplay DOT co DOT uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable User-Agent: Thunderbird 1.5 (Windows/20051201) In-Reply-To: <00b601c651f6$b8aeb5a0$b3db87d4@multiplay.co.uk> OpenPGP: url=ldap://keyserver.pgp.com X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Unsubscribe: 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 Steven Hartland wrote: > Also very interesting is when running sshd from the command line with > /usr/sbin/sshd -D vs running it via cygrunsvr I get: > * cmdline =3D 192MB 4.4MB/s 00:44 > * cygrunsvr =3D 192MB 6.4MB/s 00:30 > * cmdline without -D =3D 192MB 6.4MB/s 00:30 >=20 > I tried running: > /usr/sbin/sshd -D 2>&1 > /dev/null but no difference from the standard > so the difference might be the closed stdin which would support select > being at least a contributing factor? Changing performance options (in System Properties -> Advanced -> Performan= ce Options -> Advanced) to give services preference may have the same impact. If it does, that means that the sshd process just needs a higher priority to give better performance (sounds too obvious) at other processes expense. Your results are interesting. --=20 Ren=E9 Berber -- 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/