SCP issue on FreeBSD

[Venkateswara Rao Dokku]

root at test:~ # sysctl -a | grep send
kern.cam.ada.send_ordered: 1
kern.cam.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: 65536
net.inet.tcp.sendbuf_max: 262144
net.inet.tcp.sendbuf_inc: 16384
net.inet.tcp.sendbuf_auto: 1
net.inet.sctp.sendspace: 233016
net.raw.sendspace: 8192
root at test:~ # 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
net.wlan.recv_bar: 1
hw.cs.recv_delay: 570

On Tue, Feb 16, 2016 at 10:13 AM, Venkateswara Rao Dokku <
dvrao.584 at gmail.com> wrote:

> 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 at 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 at 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 at 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 at test:~ # *scp ns-10.5-57.7.gz root at 10.102.38.202:/root*
>>> root at 10.102.38.202's password:
>>> ns-10.5-57.7.gz                                                      100%
>>>  126MB  *63.0MB/s*   00:02
>>> root at test:~ #* scp root at 10.102.38.202:/root/ns-10.5-57.7.gz* .
>>> root at 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 at ubuntu:~# *scp root at 10.102.38.202:/root/ns-11.1-14.4.gz .*
>>> root at 10.102.38.202's password:
>>> ns-11.1-14.4.gz
>>> 100%
>>>  130MB  *64.8MB/s*   00:02
>>> root at ubuntu:~# *scp ns-11.1-14.4.gz root at 10.102.38.202:/roo*t
>>> root at 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.
>
>


-- 
Thanks & Regards,
Venkateswara Rao Dokku.