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

On Thu, 29 Jun 2006 19:25:26 -0700
Paul Jackson <[email protected]> wrote:

> Andrew wrote:
> > Like, a single message which says "20,000 sub-millisecond-runtime tasks
> > exited in the past second" or something.
> 
> System wide accumulation of such data in the exit() code path still
> risks being a bottleneck, just a bit later on.

Nah.  Stick it in the same cacheline as tasklist_lock (I'm amazed that
we've continued to get away with a global lock for that).

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Follow-Ups:
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References:
- [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]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Andrew Morton <[email protected]>
- 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: Andrew Morton <[email protected]>
- 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]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Andrew Morton <[email protected]>
- 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: Andrew Morton <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Jay Lan <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Andrew Morton <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Jay Lan <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Andrew Morton <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
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- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Paul Jackson <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: [email protected]
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Paul Jackson <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Andrew Morton <[email protected]>
- 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: Andrew Morton <[email protected]>
- 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
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- 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: Andrew Morton <[email protected]>
- Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
  - From: Paul Jackson <[email protected]>

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