Re: [UPDATED PATCH] Re: [Lse-tech] Re: [Patch 7/7] Generic netlink interface (delay accounting)

jamal
2006-03-10T15:35:41Z

On Fri, 2006-10-03 at 09:53 -0500, jamal wrote:

>
> a) shipping of the taskstats from kernel to user-space asynchronously to
> all listeners on multicast channel/group TASKSTATS_LISTEN_GRP
> at the point when some process exits.
> b) responding to queries issued by the user to the kernel for taskstats
> of a particular defined tgid and/or pid combination.
>
> Did i summarize your goals correctly?
>
> So lets stat with #b:
> i) the message is multicast; there has to be a user space app registered
> to the multicast group otherwise nothing goes to user space.

I mispoke:
The above applies to #a.
For #b, the message from/to kernel to user is unicast.

cheers,
jamal