machine ( Dual PIII 800 ) and the em can't even match the
fxp for throughput.
Looking at sysstat the interrupt rate on em is virtually double
that of the fxp 11K vs 5k.
When testing with straight ftp from a 2.5Ghz P4 windows client using an em connected with a crossover cable I get:
em = 8->9MB/s
fxp = 10->11MB/s
Tweaking the em to use jumbo packets I can push that to 14MB/s before the cpu on the P3 saturates. This is mainly interrupt and system time not user ( proftpd ) time. Unfortunately this doesn't really help because I'm after increased through put to multiple 100Mb clients not to one gE client hence jumbo frames is not an option.
Is their anyway to tweak the em driver to give better
performance. I would at least expect as good as the fxp
if not substantially better.
Steve
================================================
This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it.
In the event of misdirection, illegible or incomplete transmission please telephone (023) 8024 3137 or return the E.mail to [EMAIL PROTECTED]
_______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
