Primary caching 16: context-free range semantics #4851
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Simply add a timeless path for the range cache, and actually only iterate over the range the user asked for (we were still blindly iterating over everything until now). Also some very minimal clean up related to #4832, but we have a long way to go... - #4832 --- - Fixes #4821 --- Part of the primary caching series of PR (index search, joins, deserialization): - #4592 - #4593 - #4659 - #4680 - #4681 - #4698 - #4711 - #4712 - #4721 - #4726 - #4773 - #4784 - #4785 - #4793 - #4800 - #4851 - #4852 - #4853 - #4856
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Implement range invalidation and do a quality pass over all the size tracking stuff in the cache. **Range caching is now enabled by default!** - Fixes #4809 - Fixes #374 --- Part of the primary caching series of PR (index search, joins, deserialization): - #4592 - #4593 - #4659 - #4680 - #4681 - #4698 - #4711 - #4712 - #4721 - #4726 - #4773 - #4784 - #4785 - #4793 - #4800 - #4851 - #4852 - #4853 - #4856
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- Quick sanity pass over all the intermediary locks and refcounts to make sure we don't hold anything for longer than we need. - Get rid of all static globals and let the caches live with their associated stores in `EntityDb`. - `CacheKey` no longer requires a `StoreId`. --- - Fixes #4815 --- Part of the primary caching series of PR (index search, joins, deserialization): - #4592 - #4593 - #4659 - #4680 - #4681 - #4698 - #4711 - #4712 - #4721 - #4726 - #4773 - #4784 - #4785 - #4793 - #4800 - #4851 - #4852 - #4853 - #4856
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Range queries used to A) return the frame a T-1, B) accumulate state starting at T-1 and then C) yield frames starting at T.
A) was a huge issue for many reasons, which #4793 took care of by eliminating both A) and B).
But we need B) for range queries to be context-free, i.e. to be guaranteed that
Range(5, 10)andRange(4, 10)will return the exact same data for frame5.This is crucial for multi-tenant settings where those 2 example queries would share the same cache.
It also is the nicer-nicer version of the range semantics that we wanted anyway, I just didn't realize back then that it would require so little changes, or I would've gone straight for that.
Part of the primary caching series of PR (index search, joins, deserialization):
VecDequeextensions #4592FlatVecDeque#4593LatestAt(T-1)results into low-level range queries #4793Checklist
mainbuild: app.rerun.ionightlybuild: app.rerun.io