[Opendnssec-user] Memory usage

[Miek Gieben]

[ Quoting Matthijs Mekking at 10:14 on May 26 in "[Opendnssec-user] Memory usage"... ]
> a) Do you see this as a problem?
> 
> b) If so, can this problem be solved by buying more memory or do we need
> to make other trade-offs in order to optimize the memory usage?

I rather see a lower usage of memory, but a higher usage is of course
not the end of the world.

> #NS             unsigned        signed          VIRT MEM        PHYS MEM
> 
>         1       0.7 Kb          6.0 Kb          219 Mb          5.8 Mb
>        10       3.0 Kb          14.7 Kb         219 Mb          5.8 Mb
>       100       25 Kb           101 Kb          283 Mb          6.1 Mb
>     1.000       227 Kb          464 Kb          283 Mb          7.4 Mb
>     5.000       1149 Kb         4.5 Mb          285 Mb          21 Mb
>    10.000       2308 Kb         9.0 Mb          286 Mb          38 Mb
>    50.000       11.7 Mb         45.6 Mb         363 Mb          170 Mb
>   100.000       23.4 Mb         91.0 Mb         507 Mb          334 Mb
>   250.000       59.0 Mb         228.2 Mb        1074 Mb         827 Mb
>   500.000       118.4 Mb        456.9 Mb        1.9 Gb          1.6 Gb
> 1.000.000       237.6 Mb        915.2 Mb        3.5 Gb          3.2 Gb
> 5.000.000       1.2 Gb          4.6 Gb          16.2 Gb         14 Gb

Thanks for this nice list. In the last row I count that ods needs
3.2K per NS (if I got the zeros right), that does seem a lot.

Upgrading our signer machine to 64 GB RAM is the cheapiest thing to
do, unless you think you can make some quick fixes.

Kind regards,
Miek Gieben