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| author | Felix Lange <fjl@twurst.com> | 2016-10-15 00:04:33 +0800 |
|---|---|---|
| committer | Péter Szilágyi <peterke@gmail.com> | 2016-10-15 00:04:33 +0800 |
| commit | 40cdcf1183df235e4b32cfdbf6182a00a0e49f24 (patch) | |
| tree | 571daa75d1590a47dfe98b67ab1a3350e46ea527 /light/trie.go | |
| parent | c2ddfb343a22958324c0c26dae789d3937eece4f (diff) | |
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trie, core/state: improve memory usage and performance (#3135)
* trie: store nodes as pointers
This avoids memory copies when unwrapping node interface values.
name old time/op new time/op delta
Get 388ns ± 8% 215ns ± 2% -44.56% (p=0.000 n=15+15)
GetDB 363ns ± 3% 202ns ± 2% -44.21% (p=0.000 n=15+15)
UpdateBE 1.57µs ± 2% 1.29µs ± 3% -17.80% (p=0.000 n=13+15)
UpdateLE 1.92µs ± 2% 1.61µs ± 2% -16.25% (p=0.000 n=14+14)
HashBE 2.16µs ± 6% 2.18µs ± 6% ~ (p=0.436 n=15+15)
HashLE 7.43µs ± 3% 7.21µs ± 3% -2.96% (p=0.000 n=15+13)
* trie: close temporary databases in GetDB benchmark
* trie: don't keep []byte from DB load around
Nodes decoded from a DB load kept hashes and values as sub-slices of
the DB value. This can be a problem because loading from leveldb often
returns []byte with a cap that's larger than necessary, increasing
memory usage.
* trie: unload old cached nodes
* trie, core/state: use cache unloading for account trie
* trie: use explicit private flags (fixes Go 1.5 reflection issue).
* trie: fixup cachegen overflow at request of nick
* core/state: rename journal size constant
Diffstat (limited to 'light/trie.go')
| -rw-r--r-- | light/trie.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/light/trie.go b/light/trie.go index e9c96ea48..42a943d50 100644 --- a/light/trie.go +++ b/light/trie.go @@ -79,7 +79,7 @@ func (t *LightTrie) do(ctx context.Context, fallbackKey []byte, fn func() error) func (t *LightTrie) Get(ctx context.Context, key []byte) (res []byte, err error) { err = t.do(ctx, key, func() (err error) { if t.trie == nil { - t.trie, err = trie.NewSecure(t.originalRoot, t.db) + t.trie, err = trie.NewSecure(t.originalRoot, t.db, 0) } if err == nil { res, err = t.trie.TryGet(key) @@ -98,7 +98,7 @@ func (t *LightTrie) Get(ctx context.Context, key []byte) (res []byte, err error) func (t *LightTrie) Update(ctx context.Context, key, value []byte) (err error) { err = t.do(ctx, key, func() (err error) { if t.trie == nil { - t.trie, err = trie.NewSecure(t.originalRoot, t.db) + t.trie, err = trie.NewSecure(t.originalRoot, t.db, 0) } if err == nil { err = t.trie.TryUpdate(key, value) @@ -112,7 +112,7 @@ func (t *LightTrie) Update(ctx context.Context, key, value []byte) (err error) { func (t *LightTrie) Delete(ctx context.Context, key []byte) (err error) { err = t.do(ctx, key, func() (err error) { if t.trie == nil { - t.trie, err = trie.NewSecure(t.originalRoot, t.db) + t.trie, err = trie.NewSecure(t.originalRoot, t.db, 0) } if err == nil { err = t.trie.TryDelete(key) |