Thread (20 messages) 20 messages, 7 authors, 2021-01-05

Re: [RFC v2 PATCH 0/4] speed up page allocation for __GFP_ZERO

From: Michal Hocko <mhocko@suse.com>
Date: 2021-01-04 12:56:44
Also in: lkml

On Mon 21-12-20 11:25:22, Liang Li wrote:
[...]
Security
========
This is a weak version of "introduce init_on_alloc=1 and init_on_free=1
boot options", which zero out page in a asynchronous way. For users can't
tolerate the impaction of 'init_on_alloc=1' or 'init_on_free=1' brings,
this feauture provide another choice.
Most of the usecases are about the start up time imporvemtns IIUC. Have
you tried to use init_on_free or this would be prohibitive for your
workloads?

-- 
Michal Hocko
SUSE Labs
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