Thomas, for long latency fat links, it should be quite beneficial to set the socket buffer on the receive side (instead of having users tune tcp_recv_hiwat).
throughput of a tcp connnection is gated by "receive socket buffer / round trip time". Could that be Ross' problem ? -r Ross Smith writes: > > Thanks, that got it working. I'm still only getting 10MB/s, so it's not > solved my problem - I've still got a bottleneck somewhere, but mbuffer is a > huge improvement over standard zfs send / receive. It makes such a > difference when you can actually see what's going on. > > > ---------------------------------------- > > Date: Wed, 15 Oct 2008 12:08:14 +0200 > > From: [EMAIL PROTECTED] > > To: [EMAIL PROTECTED]; zfs-discuss@opensolaris.org > > Subject: Re: [zfs-discuss] Improving zfs send performance > > > > Ross schrieb: > >> Hi, > >> > >> I'm just doing my first proper send/receive over the network and I'm > >> getting just 9.4MB/s over a gigabit link. Would you be able to provide > >> an example of how to use mbuffer / socat with ZFS for a Solaris beginner? > >> > >> thanks, > >> > >> Ross > >> -- > >> This message posted from opensolaris.org > >> _______________________________________________ > >> zfs-discuss mailing list > >> zfs-discuss@opensolaris.org > >> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > > > > receiver> mbuffer -I sender:10000 -s 128k -m 512M | zfs receive > > > > sender> zfs send mypool/[EMAIL PROTECTED] | mbuffer -s 128k -m > > 512M -O receiver:10000 > > > > BTW: I release a new version of mbuffer today. > > > > HTH, > > Thomas > > _________________________________________________________________ > Make a mini you and download it into Windows Live Messenger > http://clk.atdmt.com/UKM/go/111354029/direct/01/ > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
