Re: is there a way to register for processes state changes from userspace ?

2015-07-09 Thread Jason Ball
Look at netlink sockets. On 9 Jul 2015 5:08 pm, Nikolay Borisov n.borisov.l...@gmail.com wrote: On 07/09/2015 09:39 AM, Ramon Fried wrote: at the specific PID procfs directory. Is there a better way to achieve that ? Something like netlink notifications for subscribed processes will be

Re: Kernel contributions from organisations and individual privacy

2015-06-10 Thread Jason Ball
I had a similar situation and managed to route patches via an intermediary to protect my employers anonymity at the time. You may (should) be able to find an appropriate sponsor depending on the nature of the customisations. On Wed, Jun 10, 2015 at 7:19 PM, Chris Packham

Re: epoll improvements

2014-10-16 Thread Jason Ball
The usual solution in low latency environments where the higher delays is an issue is to simply spin on a poll. If your polling multiple sockets then you need to cater for this in your code and avoid the kernel paths wherever possible.Depending on the hardware configuration consistent low

Re: PF_RING on Mellanox Card

2013-11-02 Thread Jason Ball
Not specifically with the melanocytes, no. I have successfully used this approach with a number of other nics though. On Saturday, 2 November 2013, Robert Clove wrote: Hi All, I want to know has anyone used the PF_RING on the Mellanox NIC card? Is it working correctly? Thanks -- --

Re: Online migration of arbitrary filesystems, possible?

2013-04-01 Thread Jason Ball
Ive had to do something similar before. It is painful, but doable. * create the directory structure on the target. (find -exec...) * create a symlink for every file on the target device, obviously pointing to the origin device. (Find) File system should be useable. * progressively