Re: Memory footprints in website

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On Tue, Oct 10, 2023 at 06:27:47PM +0530, Krishna Chaitanya wrote:
> Looking at https://w1.fi/wpa_supplicant/ the memory footprint for a
> WPA2-personal binary
> is stated as 50KB on the x86 target without any debugging.
> 
> I have tried to compile a minimal configuration WPA as below on RPI
> (had some issues with 32bit compilation on my 64bit machine):

> but got the binary size of ~289K, am I missing something? or are the
> numbers outdated?

I think those numbers are from the last time I looked at the minimal
binary sizes which was probably around 2005 or so.. A lot more
functionality has been added over the last 18 years and there has not
really been much focus to trying to make sure the minimum size would
remain small..

> But the help text for CONFIG_NO_WPA mentions ~35-50KB reduction, with
> 
> CONFIG_NO_WPA=y
> CONFIG_IEEE8021X_EAPOL=n
> 
> we get ~237K, so, that is 52K reduction, so, can I assume that the
> "wording" should be a reduction and not absolute binary size?

I'm not sure which wording you are referring to here..  This 35-50 kB
reduction is from 2005 as well and at the time and this one is reduction
as it says while the numbers on the web site are for the full binary.

> Either way looks like the website text needs an update, as customers
> just refers to that expect to match reality.

Well, I'm not sure whether there is really much interest on keeping this
type of number up-to-date and as such, that update might mean simply
deletion of any numbers or adding a note pointing out that the values
were from a snapshot in 2005 and do not indicated more or less anything
about the current snapshot.

-- 
Jouni Malinen                                            PGP id EFC895FA

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