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List:       linux-kernel
Subject:    Re: [PATCH 00/30] PREEMPT_AUTO: support lazy rescheduling
From:       Thomas Gleixner <tglx () linutronix ! de>
Date:       2024-02-21 17:15:34
Message-ID: 87zfvtg2mh.ffs () tglx
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On Wed, Feb 21 2024 at 17:53, Raghavendra K T wrote:
> Configuration tested.
> a) Base kernel (6.7),

Which scheduling model is the baseline using?

> b) patched with PREEMPT_AUTO voluntary preemption.
> c) patched with PREEMPT_DYNAMIC voluntary preemption.
>
> Workloads I tested and their %gain,
>                     case b                   case c
> NAS                +2.7                    +1.9
> Hashjoin,          +0			     +0
> XSBench	     +1.7		     +0
> Graph500,  	     -6 		     +0

The Graph500 stands out. Needs some analysis.

Thanks,

        tglx

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