Subject: more info on the slow network problem
To: None <port-alpha@netbsd.org>
From: Ron G. Minnich <rminnich@sarnoff.com>
List: port-alpha
Date: 09/03/1998 16:33:10
lx164 motherboard:
Sep 3 16:18:23 a002 /netbsd: Digital AlphaPC 164LX 533 MHz, 531MHz
Sep 3 16:18:23 a002 /netbsd: 8192 byte page size, 1 processor.
Sep 3 16:18:23 a002 /netbsd: real mem = 134217728 (1949696 reserved for
PROM, 1
32268032 used by NetBSD)
Sep 3 16:18:23 a002 /netbsd: avail mem = 113287168
Sep 3 16:18:24 a002 /netbsd: using 1614 buffers containing 13221888
bytes of me
mory
Sep 3 16:18:24 a002 /netbsd: mainbus0 (root)
Sep 3 16:18:24 a002 /netbsd: cpu0 at mainbus0: ID 0 (primary), 21164A
(pass 2)
Sep 3 16:18:24 a002 /netbsd: cia0 at mainbus0: DECchip 2117x Core Logic
Chipset
(Pyxis), pass 1
Sep 3 16:18:24 a002 /netbsd: cia0: extended capabilities: 1<BWEN>
Sep 3 16:18:24 a002 /netbsd: cia0: using BWX for PCI config and device
access
Sep 3 16:18:24 a002 /netbsd: pci0 at cia0 bus 0
Sep 3 16:18:24 a002 /netbsd: pci0: i/o enabled, memory enabled
Sep 3 16:18:24 a002 /netbsd: fxp0 at pci0 dev 7 function 0: Intel
EtherExpress
Pro 10+/100B Ethernet
Sep 3 16:18:24 a002 /netbsd: fxp0: interrupting at eb164 irq 1
performance with tulip-based ethernet cards has been right about 1
mbit/second. now with the fxp0 it's also very slow. we are also getting
timeout messages on fxp0. I think we're losing interrupts.
Any thoughts here? could we have a motherboard problem (with 16
motherboards)? This is really driving us nuts. I may just ship the
friggin' things back and chalk it up to another DEC screwup ... we saw
the same poor performance with both windows/nt and linux.
ron
Ron Minnich |"Using Windows NT, which is known to have some
rminnich@sarnoff.com | failure modes, on a warship is similar to hoping
(609)-734-3120 | that luck will be in our favor"- A. Digiorgio
ftp://ftp.sarnoff.com/pub/mnfs/www/docs/cluster.html