similar to: [PATCH net] virtio-net: add missing virtqueue kick when flushing packets

Hello We have computers which redirect COM2(ttyS1) to SOL(Searial console Over Lan). We have been using pxelinux to boot them with the following pxelinux.cfg/default setting. pxelinux.cfg/default serial 1 19200 console 1 prompt 0 timeout 100 default menu.c32 label Linux Diskless menu label ^Linux Diskless kernel menu.c32 append pxelinux.cfg/linux.menu label Bios Setup

On Thu, Sep 06, 2018 at 12:05:22PM +0800, Jason Wang wrote: > This will allow adding batch flushing on top. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/tun.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 21b125020b3b..ff1cbf3ebd50 100644 > ---

Dear R-list members, I have a problem with translating a mathematica script into R. The whole script is at the end of the email (with initial values for easy reproduction) and can be pasted directly into R. The problematic part (which is included below of course) is <--- Original Mathematica ---> (* p_svbar *) UiA = Ni (Dsi - 2Di A + A^2)/2; UiiA = Nii (Dsii - 2Dii A + A^2)/2; psvbar =

This patch tries to add XDP_REDIRECT for virtio-net. The changes are not complex as we could use exist XDP_TX helpers for most of the work. The rest is passing the XDP_TX to NAPI handler for implementing batching. Cc: John Fastabend <john.fastabend at gmail.com> Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net. | 0 drivers/net/virtio_net.c | 77

Hi list, I have a problem with Mongrel which is really bugging me. I would really appreciate any help that anyone can provide to help me in solving this problem. 1. My setup: Apache front_end with mod_proxy_balancer in front of 4 mongrel/rails instances of my application. Rails 1.2.5 Ruby 1.8.6 Mongrel 1.1.1 2. I noticed that the CPU consumption on my server was 100% being consumed by ruby so I

This will allow adding batch flushing on top. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/tun.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 21b125020b3b..ff1cbf3ebd50 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1646,7 +1646,6 @@ static u32 tun_do_xdp(struct tun_struct *tun, switch

Dear all, In R-devel (2011-09-23 r57050), I'm running into a serious problem with seek()ing on connections opened with gzfile(). A warning is generated and the file position does not seek to the requested location. It doesn't seem to occur all the time - I tried to create a small example file to illustrate it, but the problem didn't occur. However, it can be seen with a file I use for

I'm writing a pass that looks at the operands of certain non-commutable instructions and swaps a couple of them if certain conditions exist (a register bank conflict in the instruction). If the conflict exists, I build a new instruction which has the 2nd and 3rd operands swapped (using BuildMI). Then I want to get rid of the original instruction. I had done some searching and found that

Hi I have a rather strange problem with mongrel and I would be grateful if anyone could assist me with resolving. I have an application running mongrel 1.1.1 and rails 1.2.5 with ruby 1.8.6. It was all working fine and starting as expected. But I did a server reboot once and mongrel has refused to start up since. I get the following error:

Hello, I'm having a problem concerning r-binding datasets. I have six datasets, from six different plates, and two different days. I want to combine these datasets together for analysis. Datasets from day 2, have all the same columns than datasets from day 1. However in addition, there are few columns more in day 2. Thus, using rbind for this, results a error, because the objects are not the

I just noticed that read.table() and type.convert() interpret the string "i" as a missing value of type complex. > str(read.table(text=c("i\ni\ni\ni\n"))) 'data.frame': 4 obs. of 1 variable: $ V1: cplx NA NA NA ... > str(type.convert("i")) cplx NA If there are other strings in the column it makes the column character so most people

Hello dear list, Using VMware I built a test setup of a server with dhcp, tftp and a http-server and several pxe-clients with EFI mode turned on. This setup worked, albeit with the exponential-like decay of IO rate I described earlier. The work-around of using HTTP works beautifully though. So it was time for the next step. Migrate this setup to our automated testing environment that runs

Is it possible to read jpeg files into R? If yes please guide, Thanks.. I tried to search many time but failed to do. Thankis in advance.. with Best Regards, Malik Shahzad Visiting Researcher National Institute of Informatics (NII) Tokyo, Japan Doctoral Student Asian Institute of Technology (AIT) Bangkok, Thailand +66-8-7676-5616 [[alternative HTML version deleted]]

This patch split out XDP logic into a single function. This make it to be reused by XDP batching path in the following patch. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/tun.c | 84 ++++++++++++++++++++++++++++------------------- 1 file changed, 51 insertions(+), 33 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 389aa0727cc6..21b125020b3b

On 2018?09?07? 01:21, Michael S. Tsirkin wrote: > On Thu, Sep 06, 2018 at 12:05:21PM +0800, Jason Wang wrote: >> This patch split out XDP logic into a single function. This make it to >> be reused by XDP batching path in the following patch. >> >> Signed-off-by: Jason Wang <jasowang at redhat.com> >> --- >> drivers/net/tun.c | 84

On Thu, Sep 06, 2018 at 12:05:21PM +0800, Jason Wang wrote: > This patch split out XDP logic into a single function. This make it to > be reused by XDP batching path in the following patch. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/tun.c | 84 ++++++++++++++++++++++++++++------------------- > 1 file changed, 51 insertions(+), 33

On Thu, Sep 06, 2018 at 12:05:21PM +0800, Jason Wang wrote: > This patch split out XDP logic into a single function. This make it to > be reused by XDP batching path in the following patch. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/tun.c | 84 ++++++++++++++++++++++++++++------------------- > 1 file changed, 51 insertions(+), 33

This patch implements XDP batching for vhost_net with tun. This is done by batching XDP buffs in vhost and submit them when: - vhost_net can not build XDP buff (mostly because of the size of packet) - #batched exceeds the limitation (VHOST_NET_RX_BATCH). - tun accept a batch of XDP buff through msg_control and process them in a batch With this tun XDP can benefit from e.g batch transmission

How similar should my rpm build machine be to my target deploy machines? Like, do you have to build on a multi-core machine if you plan to run on a multi-core machine? Or as long as the arch is the same, nothing else matters? johnn

There's no need to duplicate page get logic in each action. So this patch tries to get page and calculate the offset before processing XDP actions, and undo them when meet errors (we don't care the performance on errors). This will be used for factoring out XDP logic. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/tun.c | 37 ++++++++++++++++---------------------