On Tue, Aug 16, 2005 at 08:35:40PM +0200, Hans du Plooy wrote: > Gnu-Raiz wrote: > >Cpu nic usage is a little moot, with dual core chips, > Well, I have seen the following. Pentium-III 1ghz with 3com nic, maxing > the CPU under heavy network (100mbit) load such as copying stuff over > samba/nfs. AthlonXP 2ghz (2400+) with marvel gigabit controller, > copying files to another marvel gigabit chip (both on ASUS boards, the > target machine being an Athlon64 3200+ 2.2ghz), also maxing the CPU on > both ends, and getting only about 15MB/s. SUSE running on the Athlon, > Gentoo on the Athlon64. > > Yes, dual cores would help, but if you actually need your CPU to do some > heavy lifting on your server, you want it not to be bothered with a > network card (or multiple cards) offloading. >
Were you using SCP or a clear protocol? Remeber, that unless you have a card to your encryption/decryption for you, then your CPU will have to do it all. I have a PIII 700 MHz that gets about 7 MB/s with scp for a 100% load, but the full 11 MB/s (filling 100 Mbit pipe) with clear ftp at a barely noticeable load. -Roberto -- Roberto C. Sanchez http://familiasanchez.net/~roberto
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