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evict wasm_cache entries once the last block they are used in becomes irreversible #7179
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… irreversible the wasm_cache needs to be periodically pruned of old entries. controller will now note to wasm_interface when the reference count of some code_hash goes to 0 and wasm_interface will then evict those entries once that block becomes irreversible. Unfortunately there are still many corner cases that can cause items in the cache to never be evicted or evicted too soon, but some reasonably accurate eviction is direly needed for long replays so this is considered good enough for now
heifner
approved these changes
Apr 22, 2019
arhag
approved these changes
Apr 22, 2019
3 tasks
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Change Description
the wasm_cache needs to be periodically pruned of old entries. controller will now note to wasm_interface when the reference count of some code_hash goes to 0 and wasm_interface will then evict those entries once that block becomes irreversible. Unfortunately there are still many corner cases that can cause items in the cache to never be evicted or evicted too soon, but some reasonably accurate eviction is direly needed for long replays so this is considered good enough for now
Consensus Changes
API Changes
Documentation Additions