Re: [Samba] Samba Share slow on OpenVPN
- Date: Thu, 14 Sep 2017 18:30:49 +0530
- From: Shobhit Agarwal via samba <samba@xxxxxxxxxxxxxxx>
- Subject: Re: [Samba] Samba Share slow on OpenVPN
When I am trying to upload/download the files without OpenVPN the speed is
coming as around 10 MB/s.
With OpenVPN it gets reduced to less than 1 MB/s.
Below is my smb.conf details
workgroup = WORKGROUP
server string = Samba Server
dns proxy = no
max log size = 1000
panic action = /usr/share/samba/panic-action %d
netbios name = centos
passdb backend = tdbsam
#hosts allow = 127.0.0.0/8 192.168.23.0/26
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE
#min receivefile size = 16384
#se sendfile = true
aio read size = 16384
aio write size = 16384
aio write behind = true
max xmit = 65535
log level = 1
read raw = yes
write raw = yes
oplocks = yes
deadtime = 15
getwd cache = yes
log file = /var/log/samba/log.%m
load printers = no
printing = bsd
printcap name = /dev/null
disable spoolss = yes
reset on zero vc = yes
security = user
unix extensions = no
wide links = yes
strict allocate = Yes
allocation roundup size = 4096
server signing = no
strict locking = no
#socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072
use sendfile = Yes
path = /Shared
browsable = yes
writable = yes
guest ok = yes
read only = no
force user = nobody
Please help me how to increase the speed and how to test.
On 13 September 2017 at 15:07, Jon Gerdes via samba <samba@xxxxxxxxxxxxxxx>
> Almost certainly your OpenVPN connection is the problem - Samba will
> serve files as fast as the link permits and is comparable to say ftp.
> You could fiddle with OpenVPN first or you could do some real link
> speed testing and then use that to inform your tuning. That of course
> assumes that your Samba implementation is optimal. I assume that there
> is no performance problem on site.
> I would use something like iperf3 - https://iperf.fr/ to evaluate the
> effects of changes made. Make one change at a time and test. Keep a
> log of tests performed and changes made. If you can, your first set of
> tests should be across the internet link without OpenVPN to establish a
> Samba uses TCP for file sharing so make sure you test that. Try to
> control what else is running at the same time over the links.
> There is no easy answer to your question and the only "fix" is by using
> careful testing and a methodical approach. Quite often you will get
> answers this way far quicker than simply messing about blindly.
> On Wed, 2017-09-13 at 09:16 +0000, Shobhit Agarwal via samba wrote:
> > Hi guys,
> > I have configured Samba share drives on my CentOS 7 VSI, and using
> > OpenVPN
> > client for the users to access these shares from Windows or MAC.
> > While I am trying to upload/download heavy files (>500MB) it is very
> > slow
> > in speed.
> > Any suggestions?
> > Thanks,
> > Shobhit Agarwal
> > --
> > Regards, Shobhit Agarwal +61-406528285
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