lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Tue, 5 Oct 2021 20:42:11 +0200
From:   Pavel Machek <>
To:     Suren Baghdasaryan <>
Subject: Re: [PATCH v10 3/3] mm: add anonymous vma name refcounting

On Fri 2021-10-01 13:56:57, Suren Baghdasaryan wrote:
> While forking a process with high number (64K) of named anonymous vmas the
> overhead caused by strdup() is noticeable. Experiments with ARM64

I still believe you should simply use numbers and do the
numbers->strings mapping in userspace. We should not need to optimize
strdups in kernel...

Best regards,

Download attachment "signature.asc" of type "application/pgp-signature" (196 bytes)

Powered by blists - more mailing lists