search for: 2gbit

...n't try and second guess the kernel tcp tuning. > min receivefile size = 16384 > use sendfile = Yes 2 above not needed. With aio enabled sendfile is disabled. Receive file to kernel isn't implemented in Linux. > Transferring a file from share(linux,tmpfs) to Windows SSD hits >2GBit/s > now. > > But transferring from Windows SSD to linux-tmpfs share still only hits 1 > GBit/s (~500MBit per interface). > > The SSD is fast enough to deliver 2GBit/s and on samba-side no disks > involved (tmpfs). > > Is there maybe another option required? Delete all...

On Tue, Sep 06, 2016 at 08:06:48PM +0200, Volker Lendecke via samba wrote: > On Tue, Sep 06, 2016 at 07:58:27PM +0200, Daniel Vogelbacher via samba wrote: > > I don't have these options in my smb.conf. > > Do you recommend any specific values? > > aio read size = 1 > aio write size = 1 > > You might try with current master. There we have improved async I/O >

...el tcp tuning. > >> min receivefile size = 16384 >> use sendfile = Yes > > 2 above not needed. With aio enabled sendfile is disabled. > Receive file to kernel isn't implemented in Linux. > >> Transferring a file from share(linux,tmpfs) to Windows SSD hits >2GBit/s >> now. >> >> But transferring from Windows SSD to linux-tmpfs share still only hits 1 >> GBit/s (~500MBit per interface). >> >> The SSD is fast enough to deliver 2GBit/s and on samba-side no disks >> involved (tmpfs). >> >> Is there maybe ano...

...al copy speed it. > > > > Now I have: > > server multi channel support = yes > vfs objects = aio_pthread,recycle > aio read size = 1 > aio write size = 1 > strict locking = No > > But read (linux->windows) transfer rate is now again 1GBit/s instead of > 2GBit/s?! OK, very strange. But at least you can now add in the things I told you to remove one by one to see which one I was wrong about :-). Don't keep adding, add one - then remove and add another until we discover which makes the difference (if it's indeed one, which I'm guessing) !

...ery important!!! aio read size = 1 aio write size = 1 read raw = Yes write raw = Yes strict locking = No socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072 min receivefile size = 16384 use sendfile = Yes Transferring a file from share(linux,tmpfs) to Windows SSD hits >2GBit/s now. But transferring from Windows SSD to linux-tmpfs share still only hits 1 GBit/s (~500MBit per interface). The SSD is fast enough to deliver 2GBit/s and on samba-side no disks involved (tmpfs). Is there maybe another option required? Regards Daniel Vogelbacher

...load balancing) mode. I created a qdisc, class and a filter as follows: tc qdisc add dev bond0 root handle 1: htb tc class add dev bond0 parent 1: classid 1:1 htb rate 240mbps tc class add 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, out...

...ust uploaded 0.9.11-pre12 of the GPL PV drivers for Windows. Since -pre10 (and -pre11) I''ve fixed a heap of crashes that were plaguing xennet under load, and also rewritten the interrupt/event distribution logic to improve performance. Under windows 2003 I can now get network speeds of 1-2Gbit/second TX and 600Gbit/second RX, which is considerably better than I was getting before. Please download it and give it a go. http://www.meadowcourt.org/downloads James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com...

...ust uploaded 0.9.11-pre12 of the GPL PV drivers for Windows. Since -pre10 (and -pre11) I''ve fixed a heap of crashes that were plaguing xennet under load, and also rewritten the interrupt/event distribution logic to improve performance. Under windows 2003 I can now get network speeds of 1-2Gbit/second TX and 600Gbit/second RX, which is considerably better than I was getting before. Please download it and give it a go. http://www.meadowcourt.org/downloads James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com...

...load balancing) mode. I created a qdisc, class and a filter as follows: tc qdisc add dev bond0 root handle 1: htb tc class add dev bond0 parent 1: classid 1:1 htb rate 240mbps tc class add 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, out...

Hi there I''m busy with some tests on the above hardware and will post some scores soon. For those that do _not_ have the above available for tests, I''m open to suggestions on potential configs that I could run for you. Pop me a mail if you want something specific _or_ you have suggestions concerning filebench (varmail) config setup. Cheers This message posted from

....com/bugzilla/show_bug.cgi?id=1281 http://oss.oracle.com/bugzilla/show_bug.cgi?id=1300 on the mailing list archive, this thread also shows similar behavior: http://www.mail-archive.com/ocfs2-users at oss.oracle.com/msg02509.html The cluster is formed by two Dell PE 1950 with 8G ram, attached via 2Gbit FC to a Dell EMC AX/100 storage. The network between them is running at 1Gbit. Using CenOS 5.5, OCFS2 1.6.4 and ULEK 2.6.32-100.0.19.el5. Tests so far: * We have changed mount option data from ordered to writeback -- no success; * We have added mount option localalloc=16 -- no success; * We ha...

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 everybody Unfortunately my problem still doesn't have any solution. But I have an interesting observation. The gateway freezes very quickly, if torrent client programs are running on workstations. I assume the cause of the problem consists in many number of TCP/IP connections that torrent client establishes. Any ideas? Maybe I can tune somehow a TCP/IP via kernel, sysctl or pf settings?

Just reporting some iperf results. In each case, Dom0 is iperf server, DomU is iperf client: (1) Dom0: Intel Core2 3.16 GHz, CentOS 5.2, xen 3.0.3. DomU: Windows XP SP3, GPLPV 0.9.12-pre13, file based. Iperf: 1.17 Gbits/sec (2) Dom0: Intel Core2 2.33 GHz, CentOS 5.2, xen 3.0.3. DomU: Windows XP SP3, GPLPV 0.9.12-pre13, file based. Iperf: 725 Mbits/sec (3) Dom0: Intel Core2 2.33 GHz,