From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 7 Nov 2001 17:30:53 -0300 From: Ricardo Scop Reply-To: Ricardo Scop Message-ID: <9729.011107@vanet.com.br> To: linuxppc-embedded@lists.linuxppc.org Cc: lehder@lists.linuxppc.org, mercio@lists.linuxppc.org Subject: Linuxppc and MPC8255 routing performance Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hello, I'm using Linux for PPC in a proprietary MPC8255-based hardware as an embedded router system. I've been trying both Denx's kernel (as of 2001-07-23) and linuxppc_2_4 (last week's version), and everything goes smoothly (thanks to all contributing guys...). I have some performance numbers which I'd like to share and confront, if possible. Core clock is 132 MHZ, and bus clock 33 Mhz. Our hardware does not have a secondary (L2) cache (and I wonder if it should...): - FTP transfer ratio through the router - 0.5 to 1.5 Mbytes/s; - # of packets per second (best case): 2000 All tests were accomplished using two fast ethernet interfaces. Best performances where obtained with data cache disabled (yes, we had to hack linuxppc_2_4 for that...). Does that sound ok, compared to other 8260 systems? (8255 is almost identical to 8260) Any numbers or other feedbacks will be highly appreciated! Best regards, Scop, Ricardo mailto:scop@vanet.com.br ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/