Date: Wed, 18 Aug 2004 09:38:40 -0700 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: freebsd-current@freebsd.org Subject: Re: new if_sk locking patch... Message-ID: <20040818163840.GE99980@funkthat.com> In-Reply-To: <Pine.BSF.4.53.0408171925030.75084@e0-0.zab2.int.zabbadoz.net> References: <20040817072438.GA99980@funkthat.com> <41223F40.8030702@mcsi.pp.ru> <Pine.BSF.4.53.0408171749000.75084@e0-0.zab2.int.zabbadoz.net> <20040817181307.GB99980@funkthat.com> <Pine.BSF.4.53.0408171925030.75084@e0-0.zab2.int.zabbadoz.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Bjoern A. Zeeb wrote this message on Tue, Aug 17, 2004 at 19:26 +0000:
> On Tue, 17 Aug 2004, John-Mark Gurney wrote:
>
> > > Does that also fix the "hangs" a lot of people can see ?
> > > I guess not ?
> >
> > Probably not... it only fixed the LOR's on attach... I just
> > got my card, but if you could get me a back trace on the hang,
> > I can look at it more... Though the hangs might be due to other
> > problems...
>
> it's not a problem of kernel hang but sk<n> is up/active but no data
> passes the interface and established connections drop. In most cases
> connectivity comes back after some amount of time. See kern/69879.
I took a quick look, and did some tests last night, and I couldn't
get the box to hang. I will admit I don't have the fastest hardware,
I was using my Apple TiBook doing testing w/ ssh and nfs.
With ssh (I believe blowfish), I was able to tar up and transfer ~31gigs
of data, getting around 6.5meg/sec. With nfs, I did a bunch of transfers
of multigigs of data, and then wrote a program (to lessen the cpu usage
on the laptop) to just read the file, and got about 13meg/sec for a 1gig
VOB. Never did I see the sk interface hang.
I was running with debug.mpsafenet=1 on a Uniproc box though. I'm going
to commit my locking patch shortly, and could you test again?
Thanks.
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040818163840.GE99980>