High memory consumption in bind 9.18.2

[Ondřej Surý]

> On 1. 8. 2022, at 17:19, Dmitri Pavlov <dpavlov at perforce.com> wrote:
> 
> I’m pretty much sure you will get the same results in your lab.

I don’t want to delve into vague description of your experiment. You’ll have to
share the exact scripts.

Even this:

> just the time-consuming task is to generate 100 MIL A + CNAME dummy records into the zone file.

could be violently different. Are those random names? Or deterministically generated? What are
the CNAME targets?

What is the exact `named.conf`?

What are the exact library versions? What is the exact ./configure invocation?

How do you execute `named`?

And yet again - the memory statistics from the statschannel could show the breakdown of the
internal memory contexts and also show if there’s a difference between the internally reported
memory usage and externally reported memory usage, e.g. is this something allocated in named,
or is this allocated in the libraries?

> Should the memory reduction apply to our experiment?

The question doesn’t really make sense.  We have not measured any increase in our test scenarios,
which doesn’t mean you can’t find different scenarios with a memory increase.

Ondrej
--
Ondřej Surý (He/Him)
ondrej at isc.org

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