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Wysocki" , Danilo Krummrich , Jonathan Cameron , Alison Schofield , Yury Norov , Dave Jiang , Madhavan Srinivasan , Nilay Shroff , linuxppc-dev@lists.ozlabs.org References: <2a0a05c2dffc62a742bf1dd030098be4ce99be28.1748452241.git.donettom@linux.ibm.com> <20250603200729.b7581e017e4ca63f502c795e@linux-foundation.org> Content-Language: en-US From: Donet Tom In-Reply-To: <20250603200729.b7581e017e4ca63f502c795e@linux-foundation.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: EbSF01bE5odkPh65mRkLZGyusm5mOC7m X-Authority-Analysis: v=2.4 cv=DYMXqutW c=1 sm=1 tr=0 ts=68404961 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=6IFa9wvqVegA:10 a=VnNF1IyMAAAA:8 a=w-oE209dy2xqcs4eIbgA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: F-1tfnlDZhRpZUcrZROpJTlH7sVUQtpP X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNjA0MDA5OSBTYWx0ZWRfXwBZBHb+c2Ct+ McEOwK31mxvwYUWFLx3Rt/bOArjqZkBjpHAYHO+84FUTyB4nyppSBCQNVTgQ3lL4NDO2Hv5JAgX WWYHgqRwsvbkHNdwIYmS8Ct3L0LqXxc27ea7x12TK04pRgI3fdcVZW6P9t+FL0YG6Tje8sPQtG1 If05/q7siRtf9WKcTJykTy+T0HH/2vY2QVqYJSG8qfhw3iT3+WeRdBgcdAkFaGMWrWotk5JnoYE XG0K9Es76TQUKULgfNGY5OEtgsCsEZ1eTGfTZVRUIekOuZG1Vd0bcOIMq4DszbrSlTaprZ0A/Vu 3g9z0S9LTu+dm3mytL1Hpmqz2qLlBfEjAtx4bCcREAlEkHRlZwD7riAA2WioXEpvUgVI4fhV7v6 eGVOEnXgki/EZ/jTbToR8DRM7DUkCQX0AipvFjcaSN6MI651asU+Pwtnj7BscCJAj2qb4XjN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-06-04_03,2025-06-03_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 mlxscore=0 priorityscore=1501 clxscore=1015 phishscore=0 mlxlogscore=993 adultscore=0 malwarescore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2506040099 On 6/4/25 8:37 AM, Andrew Morton wrote: > On Wed, 28 May 2025 12:18:00 -0500 Donet Tom wrote: > >> During node device initialization, `memory blocks` are registered under >> each NUMA node. The `memory blocks` to be registered are identified using >> the node’s start and end PFNs, which are obtained from the node's pg_data > It's quite unconventional to omit the [0/N] changelog. This omission > somewhat messed up my processes so I added a one-liner to this. Sorry, Andrew. I’ll include the cover letter in the next revision and make sure to follow this for all future patches. > >> ... >> >> Test Results on My system with 32TB RAM >> ======================================= >> 1. Boot time with CONFIG_DEFERRED_STRUCT_PAGE_INIT enabled. >> >> Without this patch >> ------------------ >> Startup finished in 1min 16.528s (kernel) >> >> With this patch >> --------------- >> Startup finished in 17.236s (kernel) - 78% Improvement > Well someone is in for a nice surprise. > >> 2. Boot time with CONFIG_DEFERRED_STRUCT_PAGE_INIT disabled. >> >> Without this patch >> ------------------ >> Startup finished in 28.320s (kernel) > what. CONFIG_DEFERRED_STRUCT_PAGE_INIT is supposed to make bootup > faster. > >