Date: Tue, 16 Feb 2016 10:13:22 +0530 From: Venkateswara Rao Dokku <dvrao.584@gmail.com> To: Juraj Bocinec <juraj.bocinec@lain.sk> Cc: freebsd-drivers@freebsd.org, owner-freebsd-drivers@freebsd.org Subject: Re: SCP issue on FreeBSD Message-ID: <CACiOAOANQhLhKHvnouSFO=oACaKe=qTU2rRd1y3GCQmVuNZd4Q@mail.gmail.com> In-Reply-To: <686449bd2840e86a391cc6f4771c3403@mam.nameserver.sk> References: <CACiOAODLd3=K6qsEE__=QaZQmvQZ_i8-4mOsR3FzM5BzzQRC_A@mail.gmail.com> <686449bd2840e86a391cc6f4771c3403@mam.nameserver.sk>
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I dont think that is causing the problem. I have the send/receive buffers equal on my system. On Wed, Feb 10, 2016 at 12:41 AM, Juraj Bocinec <juraj.bocinec@lain.sk> wrote: > Greetings, i'm no expert but doesn't this have to do something with > network send/receive buffers? They're not set the same by default: > > [root@schizo /etc]# sysctl -a|grep send > kern.cam.ada.ada_send_ordered: 1 > kern.cam.da.da_send_ordered: 1 > net.local.stream.sendspace: 8192 > net.inet.ip.sendsourcequench: 0 > net.inet.igmp.sendlocal: 1 > net.inet.igmp.sendra: 1 > net.inet.tcp.sendspace: 32768 > net.inet.tcp.sendbuf_max: 262144 > net.inet.tcp.sendbuf_inc: 8192 > net.inet.tcp.sendbuf_auto: 1 > net.inet.sctp.sendspace: 233016 > net.raw.sendspace: 8192 > [root@schizo /etc]# sysctl -a|grep recv > net.local.stream.recvspace: 8192 > net.local.dgram.recvspace: 4096 > net.inet.igmp.recvifkludge: 1 > net.inet.tcp.recvspace: 65536 > net.inet.tcp.recvbuf_max: 262144 > net.inet.tcp.recvbuf_inc: 16384 > net.inet.tcp.recvbuf_auto: 1 > net.inet.udp.recvspace: 42080 > net.inet.sctp.recvspace: 233016 > net.inet.raw.recvspace: 9216 > net.raw.recvspace: 8192 > > Juraj Bocinec > > On 2016-02-09 05:39, Venkateswara Rao Dokku wrote: > >> Hi, >> >> I am using FreeBSD 8.4 as guest on top of the linux (ubuntu 14.10) host. I >> observed that, the Pushing a file from FreeBSD is giving good performance >> over Puling a file from other linux box to FreeBSD. >> >> root@test:~ # *scp ns-10.5-57.7.gz root@10.102.38.202:/root* >> root@10.102.38.202's password: >> ns-10.5-57.7.gz 100% >> 126MB *63.0MB/s* 00:02 >> root@test:~ #* scp root@10.102.38.202:/root/ns-10.5-57.7.gz* . >> root@10.102.38.202's password: >> ns-10.5-57.7.gz 100% >> 126MB *11.5MB/s* 00:11 >> >> Why there is a difference between these two?. Any tuning needs to be done >> on the FreeBSD guest to get these two almost same? >> >> To see, whether its specific to FreeBSD I did the same experiment with >> Linux(Ubuntu 14.10) as guest on top of Linux(same host as above). Here the >> output is almost same. >> >> root@ubuntu:~# *scp root@10.102.38.202:/root/ns-11.1-14.4.gz .* >> root@10.102.38.202's password: >> ns-11.1-14.4.gz >> 100% >> 130MB *64.8MB/s* 00:02 >> root@ubuntu:~# *scp ns-11.1-14.4.gz root@10.102.38.202:/roo*t >> root@10.102.38.202's password: >> ns-11.1-14.4.gz >> 100% 130MB *64.8MB/s* 00:02 >> >> >> Moreover, in most cases Linux performance is better than FreeBSD. Is >> Ubuntu >> gives good performance when compared to FreeBSD? >> >> Any help is much appreciated. >> Thanks. >> > > -- Thanks & Regards, Venkateswara Rao Dokku.
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