Your understanding is correct. As part of my debugging I ran the Seasons skin and some additional skins. After each template was processed I logged the number of entries in sys.modules. On the first reporting cycle it increased by 1 for each template. After that it has not changed. Belchertown allows the station owner to add custom content via #includes. The OP was creating this html content every archive and therefore the cache lookup failed. Since it was html it could be included with the ‘raw’ directive, skipping the whole Cheetah compilation process. - rich
On Sunday, 25 June 2023 at 16:21:55 UTC-4 Tom Keffer wrote: > Good sleuthing! Pretty crappy algorithm that allows a cache to grow > without bounds. > > The skins that come with WeeWX (Seasons, Standard) use static source > template files. They are always the same. So, if I understand you > correctly, each template should take only one slot in sys.modules. > > Does the Belchertown skin do things differently? > > -tk > > > On Sun, Jun 25, 2023 at 8:46 AM bell...@gmail.com <bell...@gmail.com> > wrote: > >> In my experimental skin I was running into this issue, so I decided to >> delve into Cheetah’s internals and learned the following. As part of the >> compilation process the module is added to sys.modules and the generated >> code is cached. If one is dynamically generating template source and it is >> different, then it will not be found in the cache and an additional entry >> will be added to sys.modules and the cache. This will result in ever >> increasing memory usage. Since the OP was dynamically generating html and >> not Cheetah source, it could be included as ‘raw’. This skips the >> compilation step and the addition of it to sys.modules and the cache. >> - rich >> >> -- >> > You received this message because you are subscribed to the Google Groups >> "weewx-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to weewx-user+...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/c33494f0-1ff1-464e-b37c-df48f02dc1d3n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/weewx-user/c33494f0-1ff1-464e-b37c-df48f02dc1d3n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/f6a401d0-614d-4b7d-b44e-9f58f0870f8en%40googlegroups.com.
