Displaying 20 results from an estimated 3000 matches similar to: "No subject"
2014 Nov 28
1
poor throughput with tinc
Hi,
I am testing tinc for a very large scale deployment.
I am using tinc-1.1 for testing.
test results below are for tinc in switch mode. all other settings are
default. test is performed in LAN env. 2 different hosts.
I am getting only 24.6 Mbits/sec when tinc is used.
without tinc on the same hosts/link I get 95 to 100 Mbits/sec using iperf.
Over Tinc:
iperf -c 192.168.9.9 -b 100m -l 32k -w
2010 May 29
1
IFB0 throughput 3-4% lower than expected
I have two boxes for the purpose of testing traffic control and
my knowledge thereof (which is at the inkling stage). The boxes are
connected by 100Mbit ethernet cards via a switch.
For egress traffic via eth0 I achieve a throughput that is close to the
specified CEILing, particularly for values above 1mbit. Ingress traffic
does not seem so well behaved. Above about 1mbit rates achieved are
2006 Feb 01
0
prio test results
Hi, below are some test results from implementing a prio qdisc ''that is also below''.
The qdisc is attacted to a vlan interface for my external network. Both tests were run
at the same time.
The links are policed at 6.0M ''by our provider''.
192.168.70.1 --> 192.168.30.1
My question is: If using a prio qdisc should''nt the iperf run with a tos of b8
have
2010 Sep 20
0
No subject
connection will remain a TCP connection unless it is broken and restarted.
Usually if I stop the client and wait for about 30 seconds to reconnect,
there is a much greater chance that the MTU probes work fine, and in about
30 seconds MTU is fixed to 1416.
Every time when the MTU probing fails, I see latency between 700 - 1000 ms
with 32 byte pings over a LAN.
Every time when the MTU probing does
2011 Jan 11
1
Bonding performance question
I have a Dell server with four bonded, gigabit interfaces. Bonding mode is
802.3ad, xmit_hash_policy=layer3+4. When testing this setup with iperf,
I never get more than a total of about 3Gbps throughput. Is there anything
to tweak to get better throughput? Or am I running into other limits (e.g.
was reading about tcp retransmit limits for mode 0).
The iperf test was run with iperf -s on the
2010 Aug 03
1
performance with libvirt and kvm
Hi,
I am seeing a performance degradation while using libvirt to start my
vm (kvm). vm is fedora 12 and host is also fedora 12, both with
2.6.32.10-90.fc12.i686. Here are the statistics from iperf :
>From VM: [ 3] 0.0-30.0 sec 199 MBytes 55.7 Mbits/sec
>From host : [ 3] 0.0-30.0 sec 331 MBytes 92.6 Mbits/sec
libvirt command as seen from ps output :
/usr/bin/qemu-kvm -S -M
2010 Nov 15
5
Poor performance on bandwidth, Xen 4.0.1 kernel pvops 2.6.32.24
Hello list,
I have two differents installation Xen Hypervisor on two identical
physical server, on the same switch :
The problem is on my new server (Xen 4.0.1 with pvops kernel 2.6.32.24), I
have bad performance on bandwidth
I have test with a files copy and "iperf".
Result iperf average:
Transfert
Bandwidth
XEN-A -> Windows
2015 Jul 02
0
Samba server read issues
Hi all,
I set up a samba server into Debian 3.2.0-4-amd64. This runs as guest OS into VirtualBox machine over OS X host OS.
Connection seems pretty good:
$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.0.21 port 5001
2008 Feb 05
0
Need help in analyzing ntop data
Hi,
I want to do some analysis of NTOP data. Currently I have installed
NTOP on Centos 5.1 and I am able to see some network data being
graphed. But there is no documentation given whether NTOP is showing
Network Throughput in MBytes or MBits for ex I am getting
Throughput Min: 163.7k , Max: 3.0 M and Last 859.4k and there are
some options like anomalia, upper,lower and trend (30min).
Under
2012 Dec 03
1
Strange QoS behavior
Hi,
I'm having some weird problem with the setup of the QoS on a bridged network.
As the docs states, outbound/inbound average speed should be expressed in KBps (KBytes per second) but in order to get a maximum speed of 10Mbps (megabits per second) surprising enough I have to use 2560 on the guest (not 1280 as expected).
Using 1280 units I get a speed og 5Mbps.
I'm aware of peak and
2012 Dec 03
1
Strange behavior of QoS
Hi,
I'm having some weird problem with the setup of the QoS on a bridged network.
As the docs states, outbound/inbound average speed should be expressed in KBps (KBytes per second) but in order to get a maximum speed of 10Mbps (megabits per second) surprising enough I have to use 2560 on the guest (not 1280 as expected).
Using 1280 units I get a speed og 5Mbps.
I'm aware of peak and
2017 Jul 04
0
Unable to install packages in R: Error in if (any(diff)) { : missing .....
Unable to install packages in R: Error in if (any(diff)) { : missing value
where TRUE/FALSE needed
Sorry for my bad english
I need help in solving the following problem with R
When I try to install a package it end with the following error msg:
Error in if (any(diff)) { : missing value where TRUE/FALSE needed
the enviroment in windows 7 xp1 x64
R-3.4.1 was just installed
R was started with
2004 Jan 26
3
Samba and Window XP write performance
I did some testing using samba-3.0.0 as a server and two identical clients
one Running W2K and other running Win XP pro.
If I write a big file using the W2K client, I'm getting about 25 Mbytes/sec
but if I run the same testing using the Win XP Pro, this
client only is able to get 12.5 Mbytes/sec.
There is a problem between XP and samba?
2004 Jan 21
1
Newbie Questions--Firewalls
Hello.
We are running individual software firewalls (as provided by the
respective OSs) on:
MAC OSX Panther
MSWindows XP Pro
SuSE 8.2 LINUX
Machines. In addition, the MSWindows XP Pro machine is running
Norton's Software Firewall (in conjunction with Antivirus version
10.0.1.13) I am trying to configure SAMBA 2.2.8a from the SuSE LINUX
system and am unable to see either the MAC OSX
2012 Jun 05
0
Memory leak during instantiation of a reference class?
Hi,
I have a problem with a large data set wrapped in a reference class. I do that to access the data by reference from within various functions in a script.
# The class definition:
setRefClass("data",
fields = list(h5_df = "list",
training_data = "array",
2014 Apr 29
2
Degraded performance when using GRE over tinc
Hi,
In a setup where OpenVSwitch is used with GRE tunels on top of an interface provided by tinc, I'm experiencing significant performance degradation problems (from 100Mb/s down to 1Mb/s in the worst case) and I'm not sure how to fix this. The manifestation of the problem is, from the user point of view, iperf reports ~100Mb/s and rsync reports ~1Mb/s:
$ iperf -c 91.224.149.132
2007 Dec 08
1
FW: R memory management
Hi,
I'm using R to collect data for a number of exchanges through a socket
connection and constantly running into memory problems even though task I
believe is not that memory consuming. I guess there is a miscommunication
between R and WinXP about freeing up memory.
So this is the code:
for (x in 1:length(exchanges.to.get)) {
tickers<-sqlQuery(channel,paste("SELECT Symbol
2009 Oct 03
1
Passing lists and R memory usage growth
Hello,
I can't think of an explanation for this memory allocation behaviour
and was hoping someone on the list could help out.
Setup:
------
R version 2.8.1, 32-bit Ubuntu 9.04 Linux, Core 2 Duo with 3GB ram
Description:
------------
Inside a for loop, I am passing a list to a function. The function
accesses various members of the list.
I understand that in this situation, the entire
2008 May 29
0
my domUs have a slow network rate for outside networks.
Hi,
I have some network problems with my DomUs (etch) on a debian etch
running xen 3.0.3. The domain0 is a DL360 G5 with tg3 network card
If i download something from outside my dom0 box to a domU, i get this
network rate: ~865kbits ... and it must be ~ 10Mbits, i think.
Doing some tests with iperf i get this:
[ 4] local outside_server port 5001 connected with _domU_ port 54889
[ 4]
2010 Dec 27
0
Weird problem of slowness on 3.2.5
Hello everybody.
We had a Samba 3.024 on a old computer. It's disks begun to fail and we
decided to replace the computer with a new one. I installed a Lenny and
a Samba 3.2.5.
I've two problems of slowness :
* If I open a large pdf ( around 5 Mbytes ) on any computer and if
I want to print it ( directly from the computer to the printer, we do
not use Samba as a print server )