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Shenoy" , Tim Chen References: <20250704084547.GF2001818@noisy.programming.kicks-ass.net> From: Shrikanth Hegde Content-Language: en-US In-Reply-To: <20250704084547.GF2001818@noisy.programming.kicks-ass.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: nMKKwJkYfEvPTbGDqM5ZOmLPE1NgzEyE X-Authority-Analysis: v=2.4 cv=UtNjN/wB c=1 sm=1 tr=0 ts=686796d8 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=VCUguZmZTeiwaa9eHzUA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: plmXPuTAue74cvkpMZ5PubHFONFlQ8yH X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzA0MDA2NyBTYWx0ZWRfX9wUzMp63QOSN qUf01cP54xdReVdOQ9z37gKe3m3YeVwcxQE1Nj9K5ziZM3swTMBmWxEfYEFIsLmIdJT0C3Svc5n ov8alTpOGrUOaax3Pz2RB4c+kNbuGGh9BbVjmPTDuHtXSLotltavC+8l4N/BuwpAWzpTdW42FIJ vHZgyzOoNAIJQ2Sd6iO+xA/Xcp4tWw7CzE6dfVM3APMPrTHsAOpIIs5iC7a8fLoMv3oHSO6jscR p/j8UMSvERe+kDoibdF+x/FlIIjX3zWAmB6tQH6lVRXohdi3ZYnOCWuneonYjXRavrIZYTWckAi xrXyn7hcVo6+rrLjLM9fr+sc0A1COsU970J/Sz0hnUGHGi5op5eVJSK0P1jboxn8mYV7ydKaiP+ knMbfjWK9lEFMdk3ONKrt63hgn+pcbg4t63N4w2gsAzzo6/wM2ezTKblAnvEbMX3YNZF0aIE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-07-04_03,2025-07-02_04,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 phishscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 adultscore=0 clxscore=1015 lowpriorityscore=0 bulkscore=0 impostorscore=0 malwarescore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507040067 On 7/4/25 14:15, Peter Zijlstra wrote: > On Fri, Jul 04, 2025 at 04:40:39PM +0800, Chen, Yu C wrote: > >>>> @@ -953,6 +953,10 @@ config NUMA_BALANCING >>>> ?????????????? This system will be inactive on UMA systems. >>>> +config SCHED_CACHE >>>> +?????? bool "Cache aware scheduler" >>>> +?????? default y >>>> + >>> >>> Should it depend on EXPERT? >>> IMO this could add quite a bit of overhead and maybe n by default? >>> >> >> I would leave this to Peter and Tim to decide. > > Runtime controls are always better than compile time. Distros will have > no choice but to enable the config option. > > But that is not the kind of thing you start a series with. First > versions didn't even have the config option. First you make it work, > then later you worry about silly detail. > Ok Makes sense.