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collect garbage at end of each slot (#975)

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Jacek Sieka 2020-05-06 12:01:19 +02:00 committed by GitHub
parent 3f7f444ce7
commit a56e18bb0c
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10
beacon_chain/beacon_node.nim
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@ -902,6 +902,16 @@ proc onSlotStart(node: BeaconNode, lastSlot, scheduledSlot: Slot) {.gcsafe, asyn
finalizedRoot = shortLog(node.blockPool.finalizedHead.blck.root),
cat = "scheduling"
when declared(GC_fullCollect):
# The slots in the beacon node work as frames in a game: we want to make
# sure that we're ready for the next one and don't get stuck in lengthy
# garbage collection tasks when time is of essence in the middle of a slot -
# while this does not guarantee that we'll never collect during a slot, it
# makes sure that all the scratch space we used during slot tasks (logging,
# temporary buffers etc) gets recycled for the next slot that is likely to
# need similar amounts of memory.
GC_fullCollect()
addTimer(nextSlotStart) do (p: pointer):
asyncCheck node.onSlotStart(slot, nextSlot)