Significant memory usage

[Philip Prindeville]

Jun  8 22:22:10 OpenWrt named[15142]: /etc/bind/named.conf:42: expected integer and optional unit or percent near '1638MB'


> On Jun 8, 2025, at 10:17 PM, Ondřej Surý <ondrej at isc.org> wrote:
> 
> Yes, there's no math involved, it just honors the limit.
> 
> FTR you can also say:
> 
> max-cache-size 2GB;
> 
> You don't have to specify it to the last byte.
> 
> Ondrej
> --
> Ondřej Surý (He/Him)
> ondrej at isc.org
> 
> My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.
> 
>> On 9. 6. 2025, at 6:12, Philip Prindeville <philipp_subx at redfish-solutions.com> wrote:
>> 
>> Odd. I tried:
>> 
>> max-cache-size 1717986918;
>> 
>> and restarted and I don’t see anything in the logs about it.  But I did when I used a percentage.
>> 
>> 
>> 
>>> On Jun 8, 2025, at 10:02 PM, Ondřej Surý <ondrej at isc.org> wrote:
>>> 
>>> The 1.7GB is what the system is reporting. That’s why I asked as I’ve seen OpenWRT reporting weird or no values before.
>>> 
>>> 171MB cache is little on a low side and negative effects from overmem LRU cleaning will going to hurt the performance.
>>> 
>>> I would suggest to set a fixed size for the cache - 1.6GB-2GB should be more than enough for your purposes.
>>> 
>>> Ondrej
>>> --
>>> Ondřej Surý — ISC (He/Him)
>>> 
>>> My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.
>>> 
>>>> On 9. 6. 2025, at 5:45, Philip Prindeville <philipp_subx at redfish-solutions.com> wrote:
>>>> 
>>>> Jun  8 21:34:08 OpenWrt named[8106]: /etc/bind/named.conf:42: 'max-cache-size 10%' - setting to 171MB (out of 1714MB)
>>>> 
>>>> but no idea where the 1741MB that it is basing that off of is coming from.
>>> 
>> 
>