[pbs-devel] [PATCH proxmox-backup 4/4] docs: add description for gc-cache-capacity tuning parameter

[Christian Ebner]

On 4/4/25 14:28, Lukas Wagner wrote:
> 
> 
> On  2025-04-04 14:20, Thomas Lamprecht wrote:
>> Two alternatives:
>> - Changes this to the shift width, i.e. the x from 2^x, similar to the
>>    ZFS setting. Makes it nice small number to configure and for most
>>    use cases the exponential nature should be still granular enough.
>>    That said, it's not very user-friendly, at least to those without
>>    some level of CS background or the like.
>>
>> - just drop the * 1024 factor and allow users to enter the full number,
>>    it then can be simply described as numbers of chunks which is trivial
>>    to understand and relate too.
>>
>> Personally I'd favor the second option, mainly because it's so simple,
>> and having big numbers here is not that of a huge problem.
> 
> Sounds like a good idea, I like it.
> My main gripe with the "times 1024" option was that it makes it a bit
> more confusing to the user (e.g. me, when reading 'GC LRU cache capacity (in multiples of 1024 chunk digests)'
> in the UI I first thought that the value itself must be a multiple of 1024).
> 
> Changing the setting to the full number, we avoid this potential for confusion while
> still giving power-users a good sense of what is going on under the hood.

Okay, so let's go with the full values there, that should be the least 
confusing one.