Bill Blue wrote:
polling(4) says that supported devices include em(4) and that polling support
is turned on and off with ifconfig's 'polling' option. But ifconfig doesn't
seem to recognize that option either as a standalone request or with the
initial em0 setup at boot.
This is after a source cvsup (releng=6 for the frozen for 6.2 sources)
yesterday and buildworld + buildkernel. em support is compiled in the kernel
rather than loaded. Mobo is a Supermicro P4SCT-0 with Intel 875 chipset.
Is this a known issue that I haven't found references to, or perhaps something
related to my specific configuration?
FreeBSD v2.netoldies.com 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Fri Sep 15
15:14:07 PDT 2006 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/V2KERNEL i386
Thanks
--Bill
Since 6.1 I have stopped using polling as a regular kernel seems to give
good performance as compared to polling mode.
In fact I used to get anything between 55-75megs/sec on 6.1 with regular
cables but since upgraded to cat6 quality Ethernet cable I get
practically full gigabit speed with no polling.
Close to 97megs/sec is the performance I get out of my Dells with the em
driver, and apparently the new em driver in 6-stable 6.2 is even faster.
em(4) Dell to em(4) Dell
dell1# cat /dev/zero | dd bs=1m | nc dell2 3000
^C0+18456 records in
0+18455 records out
1209466880 bytes transferred in 12.459299 secs (97,073,429 bytes/sec)
Mike
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