Date: Wed, 1 Mar 2006 13:25:50 +0100 From: gh <u3mgh@utanet.at> To: freebsd-questions@freebsd.org Cc: Xn Nooby <xnooby@gmail.com>, "Daniel A." <ldrada@gmail.com> Subject: Re: WinSCP mega-slowness Message-ID: <200603011325.50909.u3mgh@utanet.at> In-Reply-To: <5ceb5d550602200404v66aa5f89y147658431957bf9a@mail.gmail.com> References: <bdf25fde0602192305m6fff3734x3333c3e1a41e3cf2@mail.gmail.com> <5ceb5d550602200404v66aa5f89y147658431957bf9a@mail.gmail.com>
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On Monday 20 February 2006 13:04, Daniel A. wrote: > Hi, > I have the same issue here. > When I use SFTP (WinSCP) to transfer from my Windows XP SP2 box to my > local server, I can only utilize about 1/10'th of the bandwith > (100mbit). > On the other hand, when I use FTP or SMB to transfer files, I can > utilize the maximum bandwith. > > On both boxes, the "symptoms" are the same: > - Lots of available CPU time > - No significant disk I/O > - Quite a lot of available RAM. but SFTP (WinSCP) is a crypted transfer (ssh tunnel) therefor it must be slower than any uncrypted transfer like FTP or samba .... > On 2/20/06, Xn Nooby <xnooby@gmail.com> wrote: > > For about a year I have noticed that whenever my Windows boxes talk to my > > Unix boxes, they communicate at about 1/10 normal speed. I copy lots (300GB) > > of large files back and forth between machines as I try different OS's, and > > I always see this. > > > > Specifically, if I copy from FreeBSD to FreeBSD, files transfer at 11 megs > > per second. Between FreeBSD and Linux, at about 8 megs per second. Between > > FreeBSD and Windows, about 1 megabyte per second. This is on identical > > hardware. I've told other people about this, and they usually say I must be > > doing something wrong, but recently a friend of mine upgraded a Windows box > > to SP2, and now they are getting this same slowness. When I copy from > > Windows to WIndows (XP or W2k), I get 11 megs per second. > > > > My machines are two P4's with gigabit NICs, and I'm using WinSCP and > > (somtimes) pscp.exe on WIndows to talk to sshd on FreeBSD. It's always a > > shock when I have to copy my data to WIndows, and it takes 30 hours instead > > of 3. > > > > Does anyone else ever see this slowness when copying files between FreeBSD > > and Windows? > > > > Is Windows maybe capping the transfer speed when it talks to Unix? > > _______________________________________________ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > -- Never argue with an idiot, they'll drag you down to their level and beat you with experience!
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