rmkml wrote:
thx Vladimir,
I have litle tested your em driver,
quick comparaison :
kernel: sys=10% intr=25% user=15%
kernel+polling: sys=7% intr=5% user=15%
kernel+yandex_em: sys=30% intr=1% user=15%
same trafic (tcpreplay ~230Mbps)
fbsd62release_amd64 on intel core 2 duo E6600+4Go
It is possible reduce sys cpu ?
I'm not sure what that digits mean :-).
There is one more (see RX_KTHREADS_NUM) than usual thread started by the
driver. That's why the results isn't easy to compare. Much of L/A
calculation techniques depends of "number of running threads".
Regards
Rmkml
On Fri, 5 Oct 2007, Vladimir Ivanov wrote:
Date: Fri, 05 Oct 2007 00:59:51 +0400
From: Vladimir Ivanov <[EMAIL PROTECTED]>
To: rmkml <[EMAIL PROTECTED]>, "freebsd-net@freebsd.org"
<freebsd-net@freebsd.org>
Subject: Re: SMPable version of EM driver
rmkml wrote:
Hi Vladimir,
very thank for your work on intel em driver !
just commented line 772 and added 773 :
771: /* Send a copy of the frame to the BPF listener */
772: /* ETHER_BPF_MTAP(ifp, m_head); */
773: BPF_MTAP(ifp, m_head);
what is ETHER_BPF_MTAP() ?
look at RELENG_6.
They've moved vlan promisc hack from driver level into ethersubr.
Briefly: we've to disable hardware vlan tagging if we want to tcpdump
or bridge trunked port.
Best Regards
Rmkml
Regards,
Vladimir
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