similar to: virtio-net TSO Lockup

Hi, What's the correct way to disble TSO (TCP Segmentation Offload) in RHEL5? I have tried adding those options in ifcfg-ethX configuration file: # grep ETHTOOL /etc/sysconfig/network-scripts/ifcfg-eth0 ETHTOOL_OPTS="tso off" And also with: ETHTOOL_OPTS="-K eth0 tso off" But when restating the server TSO is enabled: # ethtool -k eth0 tcp segmentation offload: on As

Hi Keir: [LINUX] netfront: Cleanup and fix TSO/GSO/CHECKSUM conditionals This patch tries to minimise the amount of code that is conditionally compiled. This is desirable (and the Linux way) as it helps to prevent people breaking code unwittingly since conditionals may hide compile problems. It also adds a missing conditional around the TSO ethtool operations. This also helps the building of

Hi, I see you all agree to apply :) Stephen, repost of this patch to proper places below. Thank you Henrik for clarification of bridge standard. However, silent drop of locally generated packets on 99% idle carrier grade machine looks like a hardware problem. David, don't you think that having software packet drop counters is a bad idea? I thought, software drop counters are there to help

Seems like an oversight that we have set-tx-csum and set-sg hooked up, but not set-tso. Also leads to the strange situation that if you e.g. disable tx-csum, then tso doesn't get disabled. Signed-off-by: Mark McLoughlin <markmc at redhat.com> --- drivers/net/virtio_net.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/virtio_net.c

Hello, Writing to seek help in regard to some unexpected performance anomaly i am observing in using tsoutlers:tso on the mac vs on an AWS cloud server.. I am running the following code with very small dataset of about 208 records. d.dir <- '/Users/darshanpandya/xxxxxx' FNAME <- 'my_data.csv' d.input <- fread(file.path(paste0(d.dir,"/zzz/"),FNAME,fsep =

Seems like an oversight that we have set-tx-csum and set-sg hooked up, but not set-tso. Also leads to the strange situation that if you e.g. disable tx-csum, then tso doesn't get disabled. Signed-off-by: Mark McLoughlin <markmc at redhat.com> --- drivers/net/virtio_net.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/virtio_net.c

I am trying to turn ON TSO in my Ubuntu Virtual machine but it gives me the following error: [image: image.png] Also on doing *ethtool -k ens3* all the features are marked as [fixed]. How to use libvirt to configure VM to have TSO?

Hello, Writing to seek help in regard to some unexpected performance anomaly i am observing in using tsoutlers:tso on the mac vs on an AWS cloud server.. I am running the following code with very small dataset of about 208 records. d.dir <- '/Users/darshanpandya/xxxxxx' FNAME <- 'my_data.csv' d.input <- fread(file.path(paste0(d.dir,"/zzz/"),FNAME,fsep =

Hi, Problem- Offloading (in Software) for VM generated packets ( TSO enabled in VM's ) degrades severely with increase in VM's on a host. On increasing VM's ( which are pushing traffic simultaneously ) on a compute node- - % offloaded packets coming out of VM's ( TSO enabled ) on tap port / veth-pair decreases significantly - Size of offloaded packets coming out of VM's (TSO

Since virtio does not provide it's own ndo_features_check handler, TSO, and now checksum offload, are disabled for stacked vlans. Re-enable the support and let the host take care of it. This restores/improves Guest-to-Guest performance over Q-in-Q vlans. CC: "Michael S. Tsirkin" <mst at redhat.com> CC: Jason Wang <jasowang at redhat.com> CC: virtualization at

Since virtio does not provide it's own ndo_features_check handler, TSO, and now checksum offload, are disabled for stacked vlans. Re-enable the support and let the host take care of it. This restores/improves Guest-to-Guest performance over Q-in-Q vlans. CC: "Michael S. Tsirkin" <mst at redhat.com> CC: Jason Wang <jasowang at redhat.com> CC: virtualization at

Hi: Here are the patches I used for testing KVM with virtio-net using TSO. There are three patches for the tun device which are basically Rusty's patches with the mmap turned into copying (for correctness). Two patches are for the virtio-net frontend, one required to support receiving SG/TSO, and the other useful for testing SG per se. The other patch is to the KVM backend to make all this

Hi: Here are the patches I used for testing KVM with virtio-net using TSO. There are three patches for the tun device which are basically Rusty's patches with the mmap turned into copying (for correctness). Two patches are for the virtio-net frontend, one required to support receiving SG/TSO, and the other useful for testing SG per se. The other patch is to the KVM backend to make all this

Hello, my apologies for not being sure whom to tell this problem, but it is very strange. Let me tell the story: I''m using XEN (3.0.2) with SLES10 (x86_64, SunFire X4100). On one machine I have three virtual machines ("DomU") that are very identically configured (SLES10 x86_64 also). There is also a SLES9 (i386) acting as a multi-homed NFS server. I can mount and access a

We have a SLES11 system with XEN 3.3 and configured an internal bridge "intbr1" with interfaces "vif2.1" and "vif9.1" to two Linux-guests: # ifconfig (reduced output) intbr1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:169 errors:0 dropped:0 overruns:0 frame:0 TX packets:85 errors:0 dropped:0 overruns:0

This patch implements basic batched processing of tx virtqueue by prefetching desc indices and updating used ring in a batch. For non-zerocopy case, vq->heads were used for storing the prefetched indices and updating used ring. It is also a requirement for doing more batching on top. For zerocopy case and for simplicity, batched processing were simply disabled by only fetching and processing

Hello samba gurus, I have a couple of questions regarding Linux file systems, and their ability to mimic NTFS, and the other question is regarding winbind and its uncanny ability to virtually lock up a samba AD member server once connectivity to the AD is lost. I apologize if anyone gets annoyed by this question. Environment: I am using samba 3.2 with XFS+ACL support joined as a AD domain member

Hello, after upgrading my system from 7.1-RELEASE to recent RELENG_7 I noticed stalled network transfers in certain cases. I have an Intel PRO/100 ethernet adapter (card=0x00408086 chip=0x12298086 rev=0x0c). In general networking works fine. I can ping hosts, surf on websites and so on. But if I send large files (>1 MB) to my server the transfer stalls after a few kilobytes. This concerns FTP

Hi, We have a server which locks up about once a week (for the past 3 weeks now), without any warning, and the only way to recover it, is to reset the server. This causes unwanted downtime, and often software loss as well. How do I debug the server, which runs CentOS 5.2 to see why it locks up? The CPU is an Intel Q9300 Core 2 Quad, with 8 GB RAM, on an Intel Motherboard The last few entries

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-EN-09:03.fxp Errata Notice The FreeBSD Project Topic: Poor TCP performance of fxp(4) Category: core Module: sys/dev Announced: 2009-06-24 Credits: Bjoern Koenig <bkoenig@alpha-tierchen.de> Pyun YongHyeon <yongari@FreeBSD.org> Affects: