On 6/4/25 8:37 AM, Andrew Morton wrote:
On Wed, 28 May 2025 12:18:00 -0500 Donet Tom <donet...@linux.ibm.com> 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.
