Re: Encrypted Passwords Documentation Patch

[Willy Tarreau]

On Mon, Nov 06, 2017 at 05:06:37PM +0100, Daniel Schneller wrote:
> It adds a warning about the potentially significant CPU cost the modern
> algorithms with their thousands of hashing rounds can incur. In our case it
> made the difference between haproxy's CPU usage being hardly noticeable at all
> to it almost eating a full core, even for a not very busy site.

Good point! Now applied, thanks Daniel.

Willy

Encrypted Passwords Documentation Patch

[Daniel Schneller]

Hi!

Attached find a documentation patch for the encrypted passwords in userlists.

It adds a warning about the potentially significant CPU cost the modern
algorithms with their thousands of hashing rounds can incur. In our case it
made the difference between haproxy’s CPU usage being hardly noticeable at all
to it almost eating a full core, even for a not very busy site.

Tested with 1.6, but this applies to all versions, if I am not mistaken.

Cheers,
Daniel


-- 
Daniel Schneller
Principal Cloud Engineer
 
CenterDevice GmbH  | Hochstraße 11
   | 42697 Solingen
tel: +49 1754155711| Deutschland
daniel.schnel...@centerdevice.de   | www.centerdevice.de

Geschäftsführung: Dr. Patrick Peschlow, Dr. Lukas Pustina,
Michael Rosbach, Handelsregister-Nr.: HRB 18655,
HR-Gericht: Bonn, USt-IdNr.: DE-815299431



0001-DOC-Add-note-about-encrypted-password-CPU-usage.patch
Description: Binary data