Re: [RFC PATCH 1/6] Convert the RCU tasklet into a softirq

• To: Steven Rostedt <[email protected]>
• Subject: Re: [RFC PATCH 1/6] Convert the RCU tasklet into a softirq
• From: Christoph Hellwig <[email protected]>
• Date: Fri, 22 Jun 2007 08:10:39 +0100
• Cc: LKML <[email protected]>, Linus Torvalds <[email protected]>, Ingo Molnar <[email protected]>, Andrew Morton <[email protected]>, Thomas Gleixner <[email protected]>, Christoph Hellwig <[email protected]>, john stultz <[email protected]>, Oleg Nesterov <[email protected]>, "Paul E. McKenney" <[email protected]>, Dipankar Sarma <[email protected]>, "David S. Miller" <[email protected]>, [email protected], [email protected]
• In-reply-to: <[email protected]>
• Mail-followup-to: Christoph Hellwig <[email protected]>, Steven Rostedt <[email protected]>, LKML <[email protected]>, Linus Torvalds <[email protected]>, Ingo Molnar <[email protected]>, Andrew Morton <[email protected]>, Thomas Gleixner <[email protected]>, john stultz <[email protected]>, Oleg Nesterov <[email protected]>, "Paul E. McKenney" <[email protected]>, Dipankar Sarma <[email protected]>, "David S. Miller" <[email protected]>, [email protected], [email protected]
• References: <[email protected]> <[email protected]>
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On Fri, Jun 22, 2007 at 12:00:15AM -0400, Steven Rostedt wrote:
> I believe this was originally done by Dipankar Sarma. I pulled these
> changes from the -rt kernel.
> 
> For better preformance, RCU should use a softirq instead of a
> tasklet.

I was under the imporession we had merged this a while ago due to
tasklet bottlenecks on big machines.  Any reason why it has been delayed
so long?
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• References:
  • [RFC PATCH 0/6] Convert all tasklets to workqueues
    • From: Steven Rostedt <[email protected]>
  • [RFC PATCH 1/6] Convert the RCU tasklet into a softirq
    • From: Steven Rostedt <[email protected]>

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