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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 )