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40cdcf1183
* 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
59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package trie
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import "testing"
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func TestCanUnload(t *testing.T) {
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tests := []struct {
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flag nodeFlag
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cachegen, cachelimit uint16
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want bool
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}{
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{
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flag: nodeFlag{dirty: true, gen: 0},
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want: false,
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},
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{
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flag: nodeFlag{dirty: false, gen: 0},
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cachegen: 0, cachelimit: 0,
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want: true,
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},
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{
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flag: nodeFlag{dirty: false, gen: 65534},
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cachegen: 65535, cachelimit: 1,
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want: true,
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},
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{
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flag: nodeFlag{dirty: false, gen: 65534},
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cachegen: 0, cachelimit: 1,
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want: true,
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},
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{
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flag: nodeFlag{dirty: false, gen: 1},
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cachegen: 65535, cachelimit: 1,
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want: true,
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},
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}
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for _, test := range tests {
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if got := test.flag.canUnload(test.cachegen, test.cachelimit); got != test.want {
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t.Errorf("%+v\n got %t, want %t", test, got, test.want)
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}
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}
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}
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