Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats

Jay Lan wrote:

Shailabh Nagar wrote:

Yes. If no one registers to listen on a particular CPU, data from tasks
exiting on that cpu is not sent out at all.

Shailabh also wrote:

During task exit, kernel goes through each registered listener (small list) and decides which one needs to get this exit data and calls a genetlink_unicast to each one that does need it.

Are we eliminating multicast taskstats data at exit time?

Yes. Only unicasts to each listener now.

A unicast
exit data with cpumask will do for me, but just like to be sure where
we are.

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• References:
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Jay Lan <[email protected]>

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