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List:       linux-kernel
Subject:    Re: [PATCH 00/30] PREEMPT_AUTO: support lazy rescheduling
From:       Raghavendra K T <raghavendra.kt () amd ! com>
Date:       2024-02-21 17:39:54
Message-ID: f1a5fe09-f4bc-0dc5-edda-6b3e690bc0e3 () amd ! com
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On 2/21/2024 10:45 PM, Thomas Gleixner wrote:
> 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?
> 

baseline is also PREEMPT_DYNAMIC with voluntary preemption

>> 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.
> 

Sure. Will do more detailed analysis and comeback on this.

Thanks
- Raghu

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