similar to: Poor network performance - caused by inadequate vif configuration?

R versions 2.1.0 to present. Examples shown were computed under Windows R-devel, current SVN, but ix86 Linux shows similar behaviour (sometimes NaN or -Inf rather than Inf, depending on the compiler and optimization level used). The replacement pgamma algorithm used from R 2.1.0 has an inadequate design and no supporting documentation whatsoever. There is no reference given to support the

G'day, I have a host running two kvm guests. One of them gets very poor network performance, testing with iperf I get ~10MBit/sec to guest A, >400MBit/sec to guest B (running iperf between the host/guest). Both guests are using the same bridge: Guest A: <interface type='bridge'> <mac address='54:52:00:75:24:91'/> <source

Hello, I have some problem with poor network performance on libvirt with qemu and openvswitch. I’m using libvirt 1.3.1, qemu 2.5 and openvswitch 2.6.0 on Ubuntu 16.04 currently. My connection diagram looks like below: +---------------------------+ +---------------------------+

Hello, I have no queue configured on tap and veth devices, quest type is of course KVM and I’m using virtio model for VM’s NIC. What we found is that on Xenial (where performance is poor) during test ovs-vswitchd process is using 100% CPU and there are some messages in ovs logs: 2017-05-12T14:22:04.351Z|00125|poll_loop|INFO|wakeup due to [POLLIN] on fd 149

On 05/12/2017 11:02 AM, Sławomir Kapłoński wrote: > Hello, > > I have some problem with poor network performance on libvirt with qemu and openvswitch. > I’m using libvirt 1.3.1, qemu 2.5 and openvswitch 2.6.0 on Ubuntu 16.04 currently. > My connection diagram looks like below: > >

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

I'm using rsync to mirror files from a Windows XP machine mounted via smbfs. Apparently I have something configured wrong as I get a "permisson denied" error accessing some of the files on the smbfs mount with cp, od, etc. However, rsync produces no error messages on these files. It happily creates files in the target directory that are the right size, but filled with null bytes.

Package: xenstore-utils Version: 4.0.1-2 all it says is: "Description: Xenstore utilities for Xen This package contains the Xenstore utilities." Wow, i never would have guessed that a package called xenstore-utils might contain Xenstore utilities. I'm glad that's cleared up! that just leaves a few tiny, niggling questions: 1. WTF are the Xenstore utilities? 2. What are

Package: xen-utils-3.2-1 Version: 3.2.1-2 Severity: normal When a DomU is defined as using a file: device the loopback driver will be used to make it appear to be a regular block device. The loopback driver will by default only support 8 nodes so this is a limited resource. http://etbe.coker.com.au/2008/10/22/kernel-issues-with-debian-xen-and-centos-kernels/ If there is a problem that prevents

I recently upgraded a part of my network to Gigabit ethernet, basically between my Linux machine and my main windows machine, is now gigabit. The problem is that, and the whole reason I went with it, is to get faster speeds with samba. I've only been able to get 13.4 MB/s as a maximum transfer speed. I don't expect to be able to get 125 MB/s. If I use HTTP I can get around 18 MB/s,

Hi, I''m doing some test on a network 10 gb nics and xen with version 3.1 i''m measuring 2.5 gb/sec from domU to an external physical machine with iperf. switching to 3.2 has reduced the measured performance to 40-50 Mb/sec. did anything change in the network interface? can someone help me? thanks _______________________________________________ Xen-users mailing list

Hi, This is a little off-topic,but if someone has any info, it could help me a LOT!, I am building an asterisk pbx (1.0.9) on an IBM x306 SCSI machine,my problem is that the BIOS assigns the same IRQ to the SCSI controller, and the TDM400P, i have tried several options of making the bios change the IRQ, but it will always move them together, anyone with some info about my options ? Thanks,

Am 2015-09-17 09:29, schrieb Pasi K?rkk?inen: > > Are you using nfs over UDP or TCP ? > TCP, but Network cant be the bottleneck, have tested it with iperf between bare metal/domU's and the nfs domU and it was perfectly fast... > > I don't think. > > > If you used NFS over UDP, try running it over TCP. no I use it over TCP... > > What does

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

Why don?t you set LSI to passtrough mode and set one brick per HDD? Regards, Bartosz > Wiadomo?? napisana przez Brandon Bates <brandon at brandonbates.com> w dniu 27.10.2017, o godz. 08:47: > > Hi gluster users, > I've spent several months trying to get any kind of high performance out of gluster. The current XFS/samba array is used for video editing and 300-400MB/s for

Hi, I asked yesterday about a problem with x306 and IRQ sharing, didnt get much info, now, i was playing with lspci, and see something strange, lspci -v shows me the TDM400P card is on IRQ 7, and the SCSI card is also on IRQ 7, lspci -bv (from the man - b - shows "bus-centric view, as seen by the BUS and not by the kernel) shows me the TDM400P is on IRQ 5, why does the kernel puts it on

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

On 1/29/20 4:48 AM, hw wrote: > On Wednesday, January 29, 2020 10:10:48 AM CET Nataraj wrote: >> On 1/28/20 12:39 PM, hw wrote: >>> On Tuesday, January 28, 2020 9:00:22 AM CET Nataraj wrote: >>>> On 1/26/20 5:44 PM, hw wrote: >>>>> On Sunday, January 26, 2020 11:18:36 PM CET Pete Biggs wrote: >>>>>> First of all - disclaimer - I'm

On 1/28/20 12:39 PM, hw wrote: > On Tuesday, January 28, 2020 9:00:22 AM CET Nataraj wrote: >> On 1/26/20 5:44 PM, hw wrote: >>> On Sunday, January 26, 2020 11:18:36 PM CET Pete Biggs wrote: >>>> First of all - disclaimer - I'm no network specialist, I just read and >>>> am interested in it. I may get things wrong!! >>>>

Hi everyone, I have a dataset(named "Mydata") which includes 4 different variables named; s1,s2,s3,s4 .Each variable(symptom) has 14 patients. I need to use random sampling to make, 5 different samples from my data with 5 patients in each sample. i.e. using all 4 variables I need to make 5 different samples by changing patients(with 5 patients in each sample). X8 X9 X10 X102 X110