Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use

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Subject: Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
From: Frederic Weisbecker <frederic@xxxxxxxxxx>
Date: Thu, 14 Mar 2024 00:22:32 +0100
Cc: paulmck@xxxxxxxxxx, joel@xxxxxxxxxxxxxxxxx, josh@xxxxxxxxxxxxxxxx, boqun.feng@xxxxxxxxx, rostedt@xxxxxxxxxxx, mathieu.desnoyers@xxxxxxxxxxxx, jiangshanlai@xxxxxxxxx, qiang.zhang1211@xxxxxxxxx, rcu@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, neeraj.upadhyay@xxxxxxxxxx
In-reply-to: <af5168ae-973a-46dc-8766-d1949cc82ec8@amd.com>

On Wed, Mar 13, 2024 at 11:19:08PM +0530, Neeraj Upadhyay wrote:
> Missed one point. We will continue initiating new GP until first node cb
> is processed, which can happen when a wait head becomes available.

Ah yes, I missed that indeed. Ok that seem to make sense.

References:
- [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Neeraj Upadhyay
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Frederic Weisbecker
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Neeraj Upadhyay
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Frederic Weisbecker
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Neeraj Upadhyay
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Frederic Weisbecker
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Neeraj Upadhyay
- Re: [PATCH] rcu: Reduce synchronize_rcu() delays when all wait heads are in use
  - From: Neeraj Upadhyay

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