On 14.7.2018 01:20, Sijmen J. Mulder wrote:
Hi all,
After migrating a VPS from FreeBSD to OpenBSD I noticed reduced
networking performance. Both incoming and outgoing traffic seems to be
2-3 times slower on average. By testing 100MB file transfers I've
mostly eliminated the following factors:
As well "define" slow.....
$ time curl -O
http://ftp.fi.netbsd.org/pub/NetBSD/NetBSD-current/tar_files/xsrc.tar.gz
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 123M 100 123M 0 0 7646k 0 0:00:16 0:00:16 --:--:--
9242k
0m16.58s real 0m00.09s user 0m03.24s system
$
That is OpenBSD 64bit snapshot, running as guest in VirtualBox on
Windows 10,
2 years old laptop, connected via WiFi in crowded space (at least 15
other networks
around) to not-perfect Euro DOCSIS 3.0 CPE via provider structure and
from
Czech Republic to Finland mirror of NetBSD
Theoretical maximum on my CPE is 18,75MB/s so having those speeds above
is
pretty nice in such environment.
BTW just for fun let's see how Windows 10 host deal with that.....
λ curl -O
http://ftp.fi.netbsd.org/pub/NetBSD/NetBSD-current/tar_files/xsrc.tar.gz
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 123M 100 123M 0 0 661k 0 0:03:11 0:03:11 --:--:--
704k
WHOAAAAAAA :-)
- Protocol and ciphers (tested SCP, SFTP, FTP+TLS, HTTP, HTTPS)
- Client software
- Peer host
- VM provider/platform
The easiest way to show and test this difference is as such:
1. Install either FreeBSD 11.2 or OpenBSD 6.3 on a machine or VM
2. Install curl, then `time curl -O
http://download.thinkbroadband.com/100MB.zip`
On both my VPS provider and my own PC with VirtualBox VMs the
difference is about 3x for the above test. Similar results happen when
scp-ing a file to the machine.
Any ideas on the cause of this? Any additional tests or tweaks I could
try?
Sijmen
