search for: 400mbps

...dev bond0 parent 1:1 classid 1:2 htb rate 50 ceil 50 quantum 1500 I started a TCP traffic between this bond (2gbit bandwidth) and a remote nic (1gbit bandwidth). Without qos, bond was transmitting at 960Mbps. After I executed above mentioned commands, it was expected that the bond will transmit at 400Mbps but it was transmitting only at 70Mbps. Same thing was observed with different qos rates for class 1:2, outbound traffic through bond was very less than the rate specified in the tc command. Is getting poor performance after running tc over a bond is a known issue? Please help me with this issue....

Hi, Is anyone using GlusterFS on Ubuntu in production? Specifically, I'm looking at using the NFS portion of it over a bonded interface. I believe I'll get better speed than user the gluster client across a single interface. Setup: 3 servers running KVM (about 24 VM's) 2 NAS boxes running Ubuntu (13.04 and 13.10) Since Gluster NFS does server side replication, I'll put

Hi, I just installed gplpv drive for my windows 2003 domU, but not sure if it works right, in my device manager, there is a unknown pci device, do you know what''s that? Thanks. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...the server are communicating with each other at > 1Gbps or not via "iperf" tool. > > If above gives result of 1Gbps then it will eliminate the NICs problem then > you know that it is a problem with cisco switch only. after they forced the cisco ports to gigE, I was seeing 200-400Mbps in iPerf, which was odd. servers were both very lightly loaded. BUT... the switch ports kept going offline on us. Note I have no admin access to the switch, its managed by IT so I have to go through channels to get anything. I asked what error codes were causing the ports to go offline...

...I started one send/recv to one disk, got the max right away, and started and send/recv to the second one and got about 4MB/second while the first operation dropped to about 6MB/second. It would appear that the bus bandwidth is limited to about 10MB/sec (~80Mbps) which is well below the theoretical 400Mbps that 1394 is supposed to be able to handle. I know that these two disks can go significantly higher since I was seeing 30MB/sec when they were used on Macs previously in the same daisy-chain configuration. I get the same symptoms on both the 2009.06 and the b129 machines. It''s not a cri...

...dev bond0 parent 1:1 classid 1:2 htb rate 50 ceil 50 quantum 1500 I started a TCP traffic between this bond (2gbit bandwidth) and a remote nic (1gbit bandwidth). Without qos, bond was transmitting at 960Mbps. After I executed above mentioned commands, it was expected that the bond will transmit at 400Mbps but it was transmitting only at 70Mbps. Same thing was observed with different qos rates for class 1:2, outbound traffic through bond was very less than the rate specified in the tc command. Is getting poor performance after running tc over a bond is a known issue? Please help me with this issue....

...s than 4Mbps. I test this by using netcat on Windows and piping a file to its input. The receiving end of the transfer is an un-virtualized CentOS system. Transfer rate is measured by selecting the stream in iptraf while it is active. UDP transfers, such as by CIFS, will send data at around 400Mbps. TCP transfers from Windows 2012 or Windows 8 are not similarly affected. The same driver for Win2k8 was published by Red Hat in virtio-win 1.6.3, 1.6.4, and 1.6.5. Does anyone see TCP transfer rates from Win2k8R2 that don't look ridiculously slow? https://bugzilla.redhat.com/show_bug.cgi...

...++++++++++++++++++++++ Downloading CentOS-6.2 for new installs: When possible, consider using torrents to run the downloads. In most cases you will find its also the fastest means to download the distro. There are currently over a thousand people seeding CentOS-6 and it's possible to get upto 400mbps downloads via these torrents. Torrent files for the DVD's are available at : http://mirror.centos.org/centos/6.2/isos/i386/CentOS-6.2-i386-bin-DVD1to2.torrent http://mirror.centos.org/centos/6.2/isos/x86_64/CentOS-6.2-x86_64-bin-DVD1to2.torrent You can also use a mirror close to you : http://...

I am being given a digital camcorder. It uses Mini DV tapes and either connects via typical RCA cables (IE to a tv) or via FireWire. I don't have the brand on hand, but I was told it can be ripped to DV like any standard FireWire camcorder (I believe dvgrab will be sufficient). I just installed an older FireWire card I have that I used at one point in Fedora for my iPod. It was a PITA

I've got a pair of identical CentOS 6.7 servers, with SuperMicro X8DTE-F motherboards, these have 2 each Intel 82574L ethernet ports. The eth0 ports are plugged in with 10' runs of brand new cat 5e cable to a Cisco Nexxus 9000 switch (provided by the data center). These servers keep coming up at 100baseT rather than gigE. I've swapped ports and cables with a different server,

...send-buffer-autotuning), *and* 2. Too-small TCP receive-buffer on the client-side. I couldn't see how to enlarge TCP buffers from the rsync client-side. By using a web100-enabled client machine (web100.org), we managed to upsize the TCP receive buffers (and went from 20Mbps to ~400Mbps). This by grabbing the running rsync process with a web100 tool, and manually changing the buffers on-the-fly. But the process would be a *lot* simpler if the rsync tool could request TCP buffer allocation from the rsync command line. The sys-admins would still have to configure lar...

...++++++++++++++++++++++ Downloading CentOS-6.2 for new installs: When possible, consider using torrents to run the downloads. In most cases you will find its also the fastest means to download the distro. There are currently over a thousand people seeding CentOS-6 and it's possible to get upto 400mbps downloads via these torrents. Torrent files for the DVD's are available at : http://mirror.centos.org/centos/6.2/isos/i386/CentOS-6.2-i386-bin-DVD1to2.torrent http://mirror.centos.org/centos/6.2/isos/x86_64/CentOS-6.2-x86_64-bin-DVD1to2.torrent You can also use a mirror close to you : http://...

From: Bruno Delbono <bruno.s.delbono at mail.ac> > I'm really sorry to start this thread again but I found something very > interesting I thought everyone should ^at least^ have a look at: > http://uadmin.blogspot.com/2005/06/4-dual-xeon-vs-e4500.html > This article takes into account a comparision of 4 dual xeon vs. e4500. > The author (not me!) talks about "A

Hi, I noticed that network connection of one of my boxes got significantly slow just after upgrading it to 8.0R. The box has an em0 (82547EI) and worked fine with 7.2R. The symptoms are: - A ping to a host on the same LAN takes 990ms RTT, it reduces gradually to around 1ms, and then it returns to around 1s. The rate was about 2ms/ping. - The response is quite slow, but no packet

Hi, we are currently considering different options for rolling out a large scale IP PBX to handle around 3,000 + concurrent calls. Can this be done with Asterisk? Has it been done before? I really would like an input on this. Thanks! -------------- next part -------------- An HTML attachment was scrubbed... URL: