[feat] - Add SizedLRU Cache #3344
Conversation
ahrav
force-pushed
the
feat-lru-sized-cache
branch
from
16c1db1 to
ecc3967
Compare
|
Is this meant to replace the existing memory cache? If not, what are the use cases of this vs that? |
I don't believe so. The plan is to use this for detection caching. |
ahrav
force-pushed
the
feat-lru-sized-cache
branch
from
ecc3967 to
59a7884
Compare
It might be worth tweaking the naming + comments in that case. "Memory" and "LRU" aren't exactly mutually exclusive and don't have clear purposes. |
ahrav
force-pushed
the
feat-lru-sized-cache
branch
from
e7fed02 to
f7e5b96
Compare
ahrav
force-pushed
the
feat-lru-sized-cache
branch
from
f7e5b96 to
51e6206
Compare
pkg/cache/sizedlru/sizedlru.go
Outdated
| const defaultSize = 1 << 29 // 512MB | ||
|
|
There was a problem hiding this comment.
I think a smaller default (like 8MB) would be sensible here.
pkg/cache/sizedlru/sizedlru.go
Outdated
| // WithCapacity is a functional option to set the maximum capacity of the cache. | ||
| // If the capacity is not set, the default value (512MB) is used. | ||
| func WithCapacity[T any](capacity int) Option[T] { | ||
| return func(lc *Cache[T]) { lc.capacity = capacity } | ||
| } |
There was a problem hiding this comment.
Can you document the units expected here?
There was a problem hiding this comment.
Whoops, I got the cache implementations mixed up. This capacity refers to the number of items, not total size.
| collectorOnce.Do(func() { | ||
| collector = &MetricsCollector{ |
There was a problem hiding this comment.
Consider having this called automatically when the package is imported using init()?
There was a problem hiding this comment.
Yea, that makes sense. Good call.
There was a problem hiding this comment.
Also cleans up some of the test code.
There was a problem hiding this comment.
Another option is to just declar them as package vars like we do with most others
I'll update the name for the memory cache in a separate PR. |
* add impl for lru sized cache * update error message * address comments * rename * update comments
Description:
This PR introduces a size-limited, generic LRU cache with optional metrics tracking, which wraps the golang-lru caching library. Key features include customizable metrics collection (e.g., hits, misses, evictions) and configurable behavior through functional options like setting the maximum cache size.
Checklist:
make test-community)?make lintthis requires golangci-lint)?