Estimating total memory usage in any Linux system

[Valdis Kl=?utf-8?Q?=c4=93?=tnieks]

On Tue, 19 May 2020 22:33:15 +0530, Pintu Agarwal said:

> > Below are some data taken from a small embedded arm32 device with 512MB RAM:
> >
>
> Sorry, I forgot to mention the kernel version. Here it is 3.18 Kernel

That's a kernel from 2014.  You don't seriously expect us to remember how
all those counters worked back then, do you?

That's a very real issue, not sarcasm:

[/usr/src/linux-next] git diff --shortstat v3.18..next-20200518
 76288 files changed, 15101441 insertions(+), 5417984 deletions(-)

You're asking about what the numbers meant 15 million lines of code ago.
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