linux-kernel - Re: [PATCH] hrtimer: add cmdline parameter retry_threshold to config retry times in interrupt handler routine

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Message-ID: <87sf24mvqf.ffs@tglx>
Date: Wed, 07 Feb 2024 11:09:28 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: tiozhang <tiozhang@...iglobal.com>
Cc: Jonathan Corbet <corbet@....net>, "Steven Rostedt (Google)"
 <rostedt@...dmis.org>, linux-kernel@...r.kernel.org, zyhtheonly@...il.com,
 zyhtheonly@...h.net, tiozhang@...iglobal.com
Subject: Re: [PATCH] hrtimer: add cmdline parameter retry_threshold to
 config retry times in interrupt handler routine

On Wed, Jan 31 2024 at 18:41, tiozhang@...iglobal.com wrote:
> Motivation of doing this is to give user a config option to reduce time
> cost in hrtimer irq when influenced by some time consuming hrtimer
> callbacks running in irq context.
> E.g, if we tune this parameter to 1, we dont retry anymore to prevent
> occasionally consecutive time consuming callbacks running in a single
> interrupt.

Which is the exact problem you are trying to solve here?