Is your driver on Linux 2.6 NAPI enabled ? And is CONFIG_PREEMPT=y? -----Original Message----- From: linux-mips-bounce@xxxxxxxxxxxxxx [mailto:linux-mips-bounce@xxxxxxxxxxxxxx] On Behalf Of jaypee@xxxxxxxxxx Sent: Wednesday, July 13, 2005 9:30 PM To: linux-mips Subject: Au1550 ethernet throughput low -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, I've got a au1550 board based largely on the pb1550. The ethernet throughput is ~66Mbps using the 2.6 kernel. This also consumes a lot of cpu cycles to send. We have older designs using au1000 and mvista 2.4 kernel that achieve full line rate throughput without using a lot of the cpu. Can someone with a pb/db1550 and linux 2.6 do a quick test to verify that is is not a 2.6 kernel problem, and is a problem with our HW/SW. If anyone can do the same with a 2.4 kernel too that would be great. Thanks, JP - -- mailto:jaypee@xxxxxxxxxx http://www.jaypee.org.uk -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFC1TqCZDxnKy3oOpYRAhwaAKCoY/3lEX/DksOEq42FfxlsF2rjEgCeNI0G /72t16fNrA4XvX+KVumsNDw= =yoD8 -----END PGP SIGNATURE-----
