Subj : large *.can files make things slow
To   : MRO
From : Digital Man
Date : Tue Jan 02 2024 01:01 pm

 Re: large *.can files make things slow
 By: MRO to Digital Man on Tue Jan 02 2024 01:37 pm

>  > memory for all of SBBS to have that massive ip.can file cached. It can be
>  > done and would likely have a significant performance improvement, but at
>  > the cost of a lot of memory used (in your case).
>
> i guess i'll just trim it down every month.

If you have the available RAM, it wouldn't be a bad option to have. In fact, when importing QWK packets, the ip.can file *is* cached (since the source IP address of each message is compared, and that'd be really slow to re-read the file each time) - so there's already some cases where your SBBS instance is allocating that much RAM for the ip.can file, but for a shorter period of time since that memory is freed after QWK packet import is complete. For a server that's listening for incoming TCP/UDP connections, the memory (for the ip.can cache) wouldn't be freed until the server was terminated.
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