Date: Thu, 4 Dec 2014 13:49:35 -0800 From: Jack Vogel <jfvogel@gmail.com> To: "Alexander V. Chernikov" <melifaro@freebsd.org> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Yuriy Tabolin <tabolin@speechpro.com> Subject: Re: problem with 9k jumbo clusters Message-ID: <CAFOYbckbMZFPxmME_nFJ=aitv5gtB1VgAkR5UNHOXHBjfZ0krw@mail.gmail.com> In-Reply-To: <5480AF38.3070100@FreeBSD.org> References: <54803C75.2020300@speechpro.com> <5480AF38.3070100@FreeBSD.org>
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I had wanted to remove the larger cluster sizes from the driver a while back, but for reasons I don't remember that code change didn't happen. The new 40G ixl driver does this, it only uses standard clusters for anything under 2K, and above that everything uses 4K. I would be curious to see if this change would resolve your problem, would you like a patch, or are you able to hack the code yourself to do this? Jack On Thu, Dec 4, 2014 at 11:00 AM, Alexander V. Chernikov < melifaro@freebsd.org> wrote: > On 04.12.2014 13:50, Yuriy Tabolin wrote: > >> Hi All. >> I have a server with two Intel 10G NIC. OS FreeBSD 10.1-Release amd64. >> Server works like NFS, samba-server and iSCSI target. Both NICs aggregated >> into lagg device and set MTU 9014 to them. There are some tuning >> sysctl.conf: >> kern.maxfiles=6289601 >> kern.maxfilesperproc=5660640 >> kern.maxvnodes=3339565 >> kern.ipc.nmbclusters=12255588 >> kern.ipc.nmbjumbop=6127794 >> kern.ipc.nmbufs=78435780 >> kern.ipc.maxsockbuf=16777216 >> kern.ipc.maxsockets=6289600 >> net.inet.tcp.sendbuf_max=16777216 >> net.inet.tcp.sendspace=65536 >> net.inet.tcp.recvbuf_max=16777216 >> net.inet.tcp.recvspace=65536 >> >> After some days of working, the errors are appearing: >> ix1: Interface stopped DISTRIBUTING, possible flapping >> ix0: Interface stopped DISTRIBUTING, possible flapping >> ix0: Could not setup receive structures >> ix1: Could not setup receive structures >> > Hello. It looks like > https://lists.freebsd.org/pipermail/freebsd-net/2014-May/038630.html > is relevant here. > > >> After that errors the NICs stoped working. netstat -m shows: >> 32881/33854/66735 mbufs in use (current/cache/total) >> 16370/8198/24568/12255588 mbuf clusters in use (current/cache/total/max) >> 16370/4807 mbuf+clusters out of packet secondary zone in use >> (current/cache) >> 0/873/873/6127794 4k (page size) jumbo clusters in use >> (current/cache/total/max) >> 16383/21517/37900/1815641 9k jumbo clusters in use >> (current/cache/total/max) >> 0/0/0/1021298 16k jumbo clusters in use (current/cache/total/max) >> 188407K/222004K/410411K bytes allocated to network (current/cache/total) >> 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) >> 0/0/0 requests for mbufs delayed (mbufs/clusters/mbuf+clusters) >> 0/0/0 requests for jumbo clusters delayed (4k/9k/16k) >> 0/101414306/0 requests for jumbo clusters denied (4k/9k/16k) >> 0 requests for sfbufs denied >> 0 requests for sfbufs delayed >> 0 requests for I/O initiated by sendfile >> >> 9k jumbo clusters max is too big, but looks like system cannot allocate >> them. There are huge number of "9k requests for jumbo clusters denied". >> ifconfig ix down/up don't helped, reboot is needed. Thanks for any help! >> >> >> -- >> Best regards, >> Tabolin Yuriy >> System administrator >> Speech Technology Center >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> >> > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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