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authorPéter Szilágyi <peterke@gmail.com>2018-06-21 17:28:05 +0800
committerFelix Lange <fjl@users.noreply.github.com>2018-06-21 17:28:05 +0800
commitd926bf2c7e3182d694c15829a37a0ca7331cd03c (patch)
treec2d3ddd85941a231fb05de46c36703273d11814a /eth/api_tracer.go
parent8db8d074e2fff547e9d85169018e03f89b5975a1 (diff)
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trie: cache collapsed tries node, not rlp blobs (#16876)
The current trie memory database/cache that we do pruning on stores trie nodes as binary rlp encoded blobs, and also stores the node relationships/references for GC purposes. However, most of the trie nodes (everything apart from a value node) is in essence just a collection of references. This PR switches out the RLP encoded trie blobs with the collapsed-but-not-serialized trie nodes. This permits most of the references to be recovered from within the node data structure, avoiding the need to track them a second time (expensive memory wise).
Diffstat (limited to 'eth/api_tracer.go')
-rw-r--r--eth/api_tracer.go6
1 files changed, 3 insertions, 3 deletions
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index 61f5c71d6..623e5ed1b 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -297,7 +297,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
database.TrieDB().Reference(root, common.Hash{})
}
// Dereference all past tries we ourselves are done working with
- database.TrieDB().Dereference(proot, common.Hash{})
+ database.TrieDB().Dereference(proot)
proot = root
// TODO(karalabe): Do we need the preimages? Won't they accumulate too much?
@@ -320,7 +320,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
done[uint64(result.Block)] = result
// Dereference any paret tries held in memory by this task
- database.TrieDB().Dereference(res.rootref, common.Hash{})
+ database.TrieDB().Dereference(res.rootref)
// Stream completed traces to the user, aborting on the first error
for result, ok := done[next]; ok; result, ok = done[next] {
@@ -526,7 +526,7 @@ func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*
return nil, err
}
database.TrieDB().Reference(root, common.Hash{})
- database.TrieDB().Dereference(proot, common.Hash{})
+ database.TrieDB().Dereference(proot)
proot = root
}
nodes, imgs := database.TrieDB().Size()