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clist: speedup Next by removing defers (#2511)

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This change doubles the speed of the mempool's reaping.
Before:

BenchmarkReap-8   	    5000	    365390 ns/op	  122887 B/op

After:

BenchmarkReap-8   	   10000	    158274 ns/op	  122882 B/op
This commit is contained in:
Dev Ojha
2018-09-30 10:26:14 -07:00
committed by Ethan Buchman
parent ead9fc0179
commit 69c7aa77bc
3 changed files with 58 additions and 32 deletions
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29
mempool/mempool_test.go
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@ -399,35 +399,6 @@ func TestMempoolCloseWAL(t *testing.T) {
require.Equal(t, 1, len(m3), "expecting the wal match in")
}
func BenchmarkCacheInsertTime(b *testing.B) {
cache := newMapTxCache(b.N)
txs := make([][]byte, b.N)
for i := 0; i < b.N; i++ {
txs[i] = make([]byte, 8)
binary.BigEndian.PutUint64(txs[i], uint64(i))
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
cache.Push(txs[i])
}
}
// This benchmark is probably skewed, since we actually will be removing
// txs in parallel, which may cause some overhead due to mutex locking.
func BenchmarkCacheRemoveTime(b *testing.B) {
cache := newMapTxCache(b.N)
txs := make([][]byte, b.N)
for i := 0; i < b.N; i++ {
txs[i] = make([]byte, 8)
binary.BigEndian.PutUint64(txs[i], uint64(i))
cache.Push(txs[i])
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
cache.Remove(txs[i])
}
}
func checksumIt(data []byte) string {
h := md5.New()
h.Write(data)