I'm abusing my system with raw ethernet pkts (AF_PACKET, SOCK_RAW),
and seemed to have hit a limit. When trying to send around 100Mbps
full duplex using several 4-port NICs, on a Celeron 366 to/from
a Celeron 500, I start getting this error on the sendto:
ERROR: sendto: Resource temporarily unavailable
My guess is that the kernel buffers are full. Is that a good
guess?
So, some questions: Considering the Celeron runs with a FSB of
only 66Mhz, should I even expect any better performance?
Would increasing the kernel buffers for the NICs help any?
(This will be a sustained traffic assault.)
Is there an easy way to do this, or do I just dig into the
code?
Anyone have any suggestions for high-performance (hopefully tulip-compatible)
single-port ethernet NICs?
I'm using Tulip compatible chips now. The 4-ports are ZNYX, and
the single ports range from Netgear to something really cheap...
Here's the /proc/pci for these two devices...
Bus 0, device 18, function 0:
Ethernet controller: LiteOn LNE100TX (rev 32).
Medium devsel. Fast back-to-back capable. IRQ 9. Master Capable.
Latency=64.
I/O at 0xe800 [0xe801].
Bus 0, device 19, function 0:
Ethernet controller: LiteOn Unknown device (rev 37).
Vendor id=11ad. Device id=c115.
Medium devsel. Fast back-to-back capable. IRQ 11. Master Capable.
Latency=64. Min Gnt=8.Max Lat=56.
I/O at 0xe400 [0xe401].
Non-prefetchable 32 bit memory at 0xfebffe00 [0xfebffe00].
Bus 0, device 20, function 0:
Ethernet controller: SMC 1211 TX (rev 16).
Medium devsel. Fast back-to-back capable. IRQ 10. Master Capable.
Latency=64. Min Gnt=32.Max Lat=64.
I/O at 0xe000 [0xe001].
Non-prefetchable 32 bit memory at 0xfebffd00 [0xfebffd00].
Thanks in advance,
Ben
--
Ben Greear ([EMAIL PROTECTED]) http://www.candelatech.com
Author of ScryMUD: scry.wanfear.com 4444 (Released under GPL)
http://scry.wanfear.com http://scry.wanfear.com/~greear
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