Merge pull request #14631 from zsfelfoldi/bloombits2

core/bloombits, eth/filter: transformed bloom bitmap based log search

10 files changed, 579 insertions, 337 deletions

diff --git a/eth/api_backend.go b/eth/api_backend.go
index 19ef79f23..91f392f94 100644
--- a/eth/api_backend.go
+++ b/eth/api_backend.go
@@ -24,6 +24,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -194,3 +195,14 @@ func (b *EthApiBackend) EventMux() *event.TypeMux {
 func (b *EthApiBackend) AccountManager() *accounts.Manager {
 	return b.eth.AccountManager()
 }
+
+func (b *EthApiBackend) BloomStatus() (uint64, uint64) {
+	sections, _, _ := b.eth.bloomIndexer.Sections()
+	return params.BloomBitsBlocks, sections
+}
+
+func (b *EthApiBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
+	for i := 0; i < bloomFilterThreads; i++ {
+		go session.Multiplex(bloomRetrievalBatch, bloomRetrievalWait, b.eth.bloomRequests)
+	}
+}
diff --git a/eth/backend.go b/eth/backend.go
index 5837c8564..99a1928fe 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -32,6 +32,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/clique"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/eth/downloader"
@@ -77,6 +78,9 @@ type Ethereum struct {
 	engine         consensus.Engine
 	accountManager *accounts.Manager
 
+	bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
+	bloomIndexer  *core.ChainIndexer             // Bloom indexer operating during block imports
+
 	ApiBackend *EthApiBackend
 
 	miner     *miner.Miner
@@ -125,11 +129,10 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 		networkId:      config.NetworkId,
 		gasPrice:       config.GasPrice,
 		etherbase:      config.Etherbase,
+		bloomRequests:  make(chan chan *bloombits.Retrieval),
+		bloomIndexer:   NewBloomIndexer(chainDb, params.BloomBitsBlocks),
 	}
 
-	if err := addMipmapBloomBins(chainDb); err != nil {
-		return nil, err
-	}
 	log.Info("Initialising Ethereum protocol", "versions", ProtocolVersions, "network", config.NetworkId)
 
 	if !config.SkipBcVersionCheck {
@@ -151,6 +154,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 		eth.blockchain.SetHead(compat.RewindTo)
 		core.WriteChainConfig(chainDb, genesisHash, chainConfig)
 	}
+	eth.bloomIndexer.Start(eth.blockchain.CurrentHeader(), eth.blockchain.SubscribeChainEvent)
 
 	if config.TxPool.Journal != "" {
 		config.TxPool.Journal = ctx.ResolvePath(config.TxPool.Journal)
@@ -358,14 +362,17 @@ func (s *Ethereum) Downloader() *downloader.Downloader { return s.protocolManage
 func (s *Ethereum) Protocols() []p2p.Protocol {
 	if s.lesServer == nil {
 		return s.protocolManager.SubProtocols
-	} else {
-		return append(s.protocolManager.SubProtocols, s.lesServer.Protocols()...)
 	}
+	return append(s.protocolManager.SubProtocols, s.lesServer.Protocols()...)
 }
 
 // Start implements node.Service, starting all internal goroutines needed by the
 // Ethereum protocol implementation.
 func (s *Ethereum) Start(srvr *p2p.Server) error {
+	// Start the bloom bits servicing goroutines
+	s.startBloomHandlers()
+
+	// Start the RPC service
 	s.netRPCService = ethapi.NewPublicNetAPI(srvr, s.NetVersion())
 
 	// Figure out a max peers count based on the server limits
@@ -376,6 +383,7 @@ func (s *Ethereum) Start(srvr *p2p.Server) error {
 			maxPeers = srvr.MaxPeers / 2
 		}
 	}
+	// Start the networking layer and the light server if requested
 	s.protocolManager.Start(maxPeers)
 	if s.lesServer != nil {
 		s.lesServer.Start(srvr)
@@ -389,6 +397,7 @@ func (s *Ethereum) Stop() error {
 	if s.stopDbUpgrade != nil {
 		s.stopDbUpgrade()
 	}
+	s.bloomIndexer.Close()
 	s.blockchain.Stop()
 	s.protocolManager.Stop()
 	if s.lesServer != nil {
diff --git a/eth/backend_test.go b/eth/backend_test.go
deleted file mode 100644
index 1fd25e95a..000000000
--- a/eth/backend_test.go
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package eth
-
-import (
-	"math/big"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/ethereum/go-ethereum/params"
-)
-
-func TestMipmapUpgrade(t *testing.T) {
-	db, _ := ethdb.NewMemDatabase()
-	addr := common.BytesToAddress([]byte("jeff"))
-	genesis := new(core.Genesis).MustCommit(db)
-
-	chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, db, 10, func(i int, gen *core.BlockGen) {
-		switch i {
-		case 1:
-			receipt := types.NewReceipt(nil, false, new(big.Int))
-			receipt.Logs = []*types.Log{{Address: addr}}
-			gen.AddUncheckedReceipt(receipt)
-		case 2:
-			receipt := types.NewReceipt(nil, false, new(big.Int))
-			receipt.Logs = []*types.Log{{Address: addr}}
-			gen.AddUncheckedReceipt(receipt)
-		}
-	})
-	for i, block := range chain {
-		core.WriteBlock(db, block)
-		if err := core.WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
-			t.Fatalf("failed to insert block number: %v", err)
-		}
-		if err := core.WriteHeadBlockHash(db, block.Hash()); err != nil {
-			t.Fatalf("failed to insert block number: %v", err)
-		}
-		if err := core.WriteBlockReceipts(db, block.Hash(), block.NumberU64(), receipts[i]); err != nil {
-			t.Fatal("error writing block receipts:", err)
-		}
-	}
-
-	err := addMipmapBloomBins(db)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	bloom := core.GetMipmapBloom(db, 1, core.MIPMapLevels[0])
-	if (bloom == types.Bloom{}) {
-		t.Error("got empty bloom filter")
-	}
-
-	data, _ := db.Get([]byte("setting-mipmap-version"))
-	if len(data) == 0 {
-		t.Error("setting-mipmap-version not written to database")
-	}
-}
diff --git a/eth/bloombits.go b/eth/bloombits.go
new file mode 100644
index 000000000..32f6c7b31
--- /dev/null
+++ b/eth/bloombits.go
@@ -0,0 +1,142 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package eth
+
+import (
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/bitutil"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/params"
+)
+
+const (
+	// bloomServiceThreads is the number of goroutines used globally by an Ethereum
+	// instance to service bloombits lookups for all running filters.
+	bloomServiceThreads = 16
+
+	// bloomFilterThreads is the number of goroutines used locally per filter to
+	// multiplex requests onto the global servicing goroutines.
+	bloomFilterThreads = 3
+
+	// bloomRetrievalBatch is the maximum number of bloom bit retrievals to service
+	// in a single batch.
+	bloomRetrievalBatch = 16
+
+	// bloomRetrievalWait is the maximum time to wait for enough bloom bit requests
+	// to accumulate request an entire batch (avoiding hysteresis).
+	bloomRetrievalWait = time.Duration(0)
+)
+
+// startBloomHandlers starts a batch of goroutines to accept bloom bit database
+// retrievals from possibly a range of filters and serving the data to satisfy.
+func (eth *Ethereum) startBloomHandlers() {
+	for i := 0; i < bloomServiceThreads; i++ {
+		go func() {
+			for {
+				select {
+				case <-eth.shutdownChan:
+					return
+
+				case request := <-eth.bloomRequests:
+					task := <-request
+
+					task.Bitsets = make([][]byte, len(task.Sections))
+					for i, section := range task.Sections {
+						head := core.GetCanonicalHash(eth.chainDb, (section+1)*params.BloomBitsBlocks-1)
+						blob, err := bitutil.DecompressBytes(core.GetBloomBits(eth.chainDb, task.Bit, section, head), int(params.BloomBitsBlocks)/8)
+						if err != nil {
+							panic(err)
+						}
+						task.Bitsets[i] = blob
+					}
+					request <- task
+				}
+			}
+		}()
+	}
+}
+
+const (
+	// bloomConfirms is the number of confirmation blocks before a bloom section is
+	// considered probably final and its rotated bits are calculated.
+	bloomConfirms = 256
+
+	// bloomThrottling is the time to wait between processing two consecutive index
+	// sections. It's useful during chain upgrades to prevent disk overload.
+	bloomThrottling = 100 * time.Millisecond
+)
+
+// BloomIndexer implements a core.ChainIndexer, building up a rotated bloom bits index
+// for the Ethereum header bloom filters, permitting blazing fast filtering.
+type BloomIndexer struct {
+	size uint64 // section size to generate bloombits for
+
+	db  ethdb.Database       // database instance to write index data and metadata into
+	gen *bloombits.Generator // generator to rotate the bloom bits crating the bloom index
+
+	section uint64      // Section is the section number being processed currently
+	head    common.Hash // Head is the hash of the last header processed
+}
+
+// NewBloomIndexer returns a chain indexer that generates bloom bits data for the
+// canonical chain for fast logs filtering.
+func NewBloomIndexer(db ethdb.Database, size uint64) *core.ChainIndexer {
+	backend := &BloomIndexer{
+		db:   db,
+		size: size,
+	}
+	table := ethdb.NewTable(db, string(core.BloomBitsIndexPrefix))
+
+	return core.NewChainIndexer(db, table, backend, size, bloomConfirms, bloomThrottling, "bloombits")
+}
+
+// Reset implements core.ChainIndexerBackend, starting a new bloombits index
+// section.
+func (b *BloomIndexer) Reset(section uint64) {
+	gen, err := bloombits.NewGenerator(uint(b.size))
+	if err != nil {
+		panic(err)
+	}
+	b.gen, b.section, b.head = gen, section, common.Hash{}
+}
+
+// Process implements core.ChainIndexerBackend, adding a new header's bloom into
+// the index.
+func (b *BloomIndexer) Process(header *types.Header) {
+	b.gen.AddBloom(uint(header.Number.Uint64()-b.section*b.size), header.Bloom)
+	b.head = header.Hash()
+}
+
+// Commit implements core.ChainIndexerBackend, finalizing the bloom section and
+// writing it out into the database.
+func (b *BloomIndexer) Commit() error {
+	batch := b.db.NewBatch()
+
+	for i := 0; i < types.BloomBitLength; i++ {
+		bits, err := b.gen.Bitset(uint(i))
+		if err != nil {
+			return err
+		}
+		core.WriteBloomBits(batch, uint(i), b.section, b.head, bitutil.CompressBytes(bits))
+	}
+	return batch.Write()
+}
diff --git a/eth/db_upgrade.go b/eth/db_upgrade.go
index 90111b2b3..d41afa17c 100644
--- a/eth/db_upgrade.go
+++ b/eth/db_upgrade.go
@@ -19,7 +19,6 @@ package eth
 
 import (
 	"bytes"
-	"fmt"
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -134,46 +133,3 @@ func upgradeDeduplicateData(db ethdb.Database) func() error {
 		return <-errc
 	}
 }
-
-func addMipmapBloomBins(db ethdb.Database) (err error) {
-	const mipmapVersion uint = 2
-
-	// check if the version is set. We ignore data for now since there's
-	// only one version so we can easily ignore it for now
-	var data []byte
-	data, _ = db.Get([]byte("setting-mipmap-version"))
-	if len(data) > 0 {
-		var version uint
-		if err := rlp.DecodeBytes(data, &version); err == nil && version == mipmapVersion {
-			return nil
-		}
-	}
-
-	defer func() {
-		if err == nil {
-			var val []byte
-			val, err = rlp.EncodeToBytes(mipmapVersion)
-			if err == nil {
-				err = db.Put([]byte("setting-mipmap-version"), val)
-			}
-			return
-		}
-	}()
-	latestHash := core.GetHeadBlockHash(db)
-	latestBlock := core.GetBlock(db, latestHash, core.GetBlockNumber(db, latestHash))
-	if latestBlock == nil { // clean database
-		return
-	}
-
-	tstart := time.Now()
-	log.Warn("Upgrading db log bloom bins")
-	for i := uint64(0); i <= latestBlock.NumberU64(); i++ {
-		hash := core.GetCanonicalHash(db, i)
-		if (hash == common.Hash{}) {
-			return fmt.Errorf("chain db corrupted. Could not find block %d.", i)
-		}
-		core.WriteMipmapBloom(db, i, core.GetBlockReceipts(db, hash, i))
-	}
-	log.Info("Bloom-bin upgrade completed", "elapsed", common.PrettyDuration(time.Since(tstart)))
-	return nil
-}
diff --git a/eth/filters/api.go b/eth/filters/api.go
index fff58a268..6e1d48adb 100644
--- a/eth/filters/api.go
+++ b/eth/filters/api.go
@@ -52,8 +52,8 @@ type filter struct {
 // information related to the Ethereum protocol such als blocks, transactions and logs.
 type PublicFilterAPI struct {
 	backend   Backend
-	useMipMap bool
 	mux       *event.TypeMux
+	quit      chan struct{}
 	chainDb   ethdb.Database
 	events    *EventSystem
 	filtersMu sync.Mutex
@@ -63,14 +63,12 @@ type PublicFilterAPI struct {
 // NewPublicFilterAPI returns a new PublicFilterAPI instance.
 func NewPublicFilterAPI(backend Backend, lightMode bool) *PublicFilterAPI {
 	api := &PublicFilterAPI{
-		backend:   backend,
-		useMipMap: !lightMode,
-		mux:       backend.EventMux(),
-		chainDb:   backend.ChainDb(),
-		events:    NewEventSystem(backend.EventMux(), backend, lightMode),
-		filters:   make(map[rpc.ID]*filter),
+		backend: backend,
+		mux:     backend.EventMux(),
+		chainDb: backend.ChainDb(),
+		events:  NewEventSystem(backend.EventMux(), backend, lightMode),
+		filters: make(map[rpc.ID]*filter),
 	}
-
 	go api.timeoutLoop()
 
 	return api
@@ -325,20 +323,20 @@ func (api *PublicFilterAPI) NewFilter(crit FilterCriteria) (rpc.ID, error) {
 //
 // https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getlogs
 func (api *PublicFilterAPI) GetLogs(ctx context.Context, crit FilterCriteria) ([]*types.Log, error) {
+	// Convert the RPC block numbers into internal representations
 	if crit.FromBlock == nil {
 		crit.FromBlock = big.NewInt(rpc.LatestBlockNumber.Int64())
 	}
 	if crit.ToBlock == nil {
 		crit.ToBlock = big.NewInt(rpc.LatestBlockNumber.Int64())
 	}
+	// Create and run the filter to get all the logs
+	filter := New(api.backend, crit.FromBlock.Int64(), crit.ToBlock.Int64(), crit.Addresses, crit.Topics)
 
-	filter := New(api.backend, api.useMipMap)
-	filter.SetBeginBlock(crit.FromBlock.Int64())
-	filter.SetEndBlock(crit.ToBlock.Int64())
-	filter.SetAddresses(crit.Addresses)
-	filter.SetTopics(crit.Topics)
-
-	logs, err := filter.Find(ctx)
+	logs, err := filter.Logs(ctx)
+	if err != nil {
+		return nil, err
+	}
 	return returnLogs(logs), err
 }
 
@@ -372,21 +370,18 @@ func (api *PublicFilterAPI) GetFilterLogs(ctx context.Context, id rpc.ID) ([]*ty
 		return nil, fmt.Errorf("filter not found")
 	}
 
-	filter := New(api.backend, api.useMipMap)
+	begin := rpc.LatestBlockNumber.Int64()
 	if f.crit.FromBlock != nil {
-		filter.SetBeginBlock(f.crit.FromBlock.Int64())
-	} else {
-		filter.SetBeginBlock(rpc.LatestBlockNumber.Int64())
+		begin = f.crit.FromBlock.Int64()
 	}
+	end := rpc.LatestBlockNumber.Int64()
 	if f.crit.ToBlock != nil {
-		filter.SetEndBlock(f.crit.ToBlock.Int64())
-	} else {
-		filter.SetEndBlock(rpc.LatestBlockNumber.Int64())
+		end = f.crit.ToBlock.Int64()
 	}
-	filter.SetAddresses(f.crit.Addresses)
-	filter.SetTopics(f.crit.Topics)
+	// Create and run the filter to get all the logs
+	filter := New(api.backend, begin, end, f.crit.Addresses, f.crit.Topics)
 
-	logs, err := filter.Find(ctx)
+	logs, err := filter.Logs(ctx)
 	if err != nil {
 		return nil, err
 	}
@@ -394,7 +389,7 @@ func (api *PublicFilterAPI) GetFilterLogs(ctx context.Context, id rpc.ID) ([]*ty
 }
 
 // GetFilterChanges returns the logs for the filter with the given id since
-// last time is was called. This can be used for polling.
+// last time it was called. This can be used for polling.
 //
 // For pending transaction and block filters the result is []common.Hash.
 // (pending)Log filters return []Log.
diff --git a/eth/filters/bench_test.go b/eth/filters/bench_test.go
new file mode 100644
index 000000000..abbf4593e
--- /dev/null
+++ b/eth/filters/bench_test.go
@@ -0,0 +1,201 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package filters
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/bitutil"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/event"
+	"github.com/ethereum/go-ethereum/node"
+)
+
+func BenchmarkBloomBits512(b *testing.B) {
+	benchmarkBloomBits(b, 512)
+}
+
+func BenchmarkBloomBits1k(b *testing.B) {
+	benchmarkBloomBits(b, 1024)
+}
+
+func BenchmarkBloomBits2k(b *testing.B) {
+	benchmarkBloomBits(b, 2048)
+}
+
+func BenchmarkBloomBits4k(b *testing.B) {
+	benchmarkBloomBits(b, 4096)
+}
+
+func BenchmarkBloomBits8k(b *testing.B) {
+	benchmarkBloomBits(b, 8192)
+}
+
+func BenchmarkBloomBits16k(b *testing.B) {
+	benchmarkBloomBits(b, 16384)
+}
+
+func BenchmarkBloomBits32k(b *testing.B) {
+	benchmarkBloomBits(b, 32768)
+}
+
+const benchFilterCnt = 2000
+
+func benchmarkBloomBits(b *testing.B, sectionSize uint64) {
+	benchDataDir := node.DefaultDataDir() + "/geth/chaindata"
+	fmt.Println("Running bloombits benchmark   section size:", sectionSize)
+
+	db, err := ethdb.NewLDBDatabase(benchDataDir, 128, 1024)
+	if err != nil {
+		b.Fatalf("error opening database at %v: %v", benchDataDir, err)
+	}
+	head := core.GetHeadBlockHash(db)
+	if head == (common.Hash{}) {
+		b.Fatalf("chain data not found at %v", benchDataDir)
+	}
+
+	clearBloomBits(db)
+	fmt.Println("Generating bloombits data...")
+	headNum := core.GetBlockNumber(db, head)
+	if headNum < sectionSize+512 {
+		b.Fatalf("not enough blocks for running a benchmark")
+	}
+
+	start := time.Now()
+	cnt := (headNum - 512) / sectionSize
+	var dataSize, compSize uint64
+	for sectionIdx := uint64(0); sectionIdx < cnt; sectionIdx++ {
+		bc, err := bloombits.NewGenerator(uint(sectionSize))
+		if err != nil {
+			b.Fatalf("failed to create generator: %v", err)
+		}
+		var header *types.Header
+		for i := sectionIdx * sectionSize; i < (sectionIdx+1)*sectionSize; i++ {
+			hash := core.GetCanonicalHash(db, i)
+			header = core.GetHeader(db, hash, i)
+			if header == nil {
+				b.Fatalf("Error creating bloomBits data")
+			}
+			bc.AddBloom(uint(i-sectionIdx*sectionSize), header.Bloom)
+		}
+		sectionHead := core.GetCanonicalHash(db, (sectionIdx+1)*sectionSize-1)
+		for i := 0; i < types.BloomBitLength; i++ {
+			data, err := bc.Bitset(uint(i))
+			if err != nil {
+				b.Fatalf("failed to retrieve bitset: %v", err)
+			}
+			comp := bitutil.CompressBytes(data)
+			dataSize += uint64(len(data))
+			compSize += uint64(len(comp))
+			core.WriteBloomBits(db, uint(i), sectionIdx, sectionHead, comp)
+		}
+		//if sectionIdx%50 == 0 {
+		//	fmt.Println(" section", sectionIdx, "/", cnt)
+		//}
+	}
+
+	d := time.Since(start)
+	fmt.Println("Finished generating bloombits data")
+	fmt.Println(" ", d, "total  ", d/time.Duration(cnt*sectionSize), "per block")
+	fmt.Println(" data size:", dataSize, "  compressed size:", compSize, "  compression ratio:", float64(compSize)/float64(dataSize))
+
+	fmt.Println("Running filter benchmarks...")
+	start = time.Now()
+	mux := new(event.TypeMux)
+	var backend *testBackend
+
+	for i := 0; i < benchFilterCnt; i++ {
+		if i%20 == 0 {
+			db.Close()
+			db, _ = ethdb.NewLDBDatabase(benchDataDir, 128, 1024)
+			backend = &testBackend{mux, db, cnt, new(event.Feed), new(event.Feed), new(event.Feed), new(event.Feed)}
+		}
+		var addr common.Address
+		addr[0] = byte(i)
+		addr[1] = byte(i / 256)
+		filter := New(backend, 0, int64(cnt*sectionSize-1), []common.Address{addr}, nil)
+		if _, err := filter.Logs(context.Background()); err != nil {
+			b.Error("filter.Find error:", err)
+		}
+	}
+	d = time.Since(start)
+	fmt.Println("Finished running filter benchmarks")
+	fmt.Println(" ", d, "total  ", d/time.Duration(benchFilterCnt), "per address", d*time.Duration(1000000)/time.Duration(benchFilterCnt*cnt*sectionSize), "per million blocks")
+	db.Close()
+}
+
+func forEachKey(db ethdb.Database, startPrefix, endPrefix []byte, fn func(key []byte)) {
+	it := db.(*ethdb.LDBDatabase).NewIterator()
+	it.Seek(startPrefix)
+	for it.Valid() {
+		key := it.Key()
+		cmpLen := len(key)
+		if len(endPrefix) < cmpLen {
+			cmpLen = len(endPrefix)
+		}
+		if bytes.Compare(key[:cmpLen], endPrefix) == 1 {
+			break
+		}
+		fn(common.CopyBytes(key))
+		it.Next()
+	}
+	it.Release()
+}
+
+var bloomBitsPrefix = []byte("bloomBits-")
+
+func clearBloomBits(db ethdb.Database) {
+	fmt.Println("Clearing bloombits data...")
+	forEachKey(db, bloomBitsPrefix, bloomBitsPrefix, func(key []byte) {
+		db.Delete(key)
+	})
+}
+
+func BenchmarkNoBloomBits(b *testing.B) {
+	benchDataDir := node.DefaultDataDir() + "/geth/chaindata"
+	fmt.Println("Running benchmark without bloombits")
+	db, err := ethdb.NewLDBDatabase(benchDataDir, 128, 1024)
+	if err != nil {
+		b.Fatalf("error opening database at %v: %v", benchDataDir, err)
+	}
+	head := core.GetHeadBlockHash(db)
+	if head == (common.Hash{}) {
+		b.Fatalf("chain data not found at %v", benchDataDir)
+	}
+	headNum := core.GetBlockNumber(db, head)
+
+	clearBloomBits(db)
+
+	fmt.Println("Running filter benchmarks...")
+	start := time.Now()
+	mux := new(event.TypeMux)
+	backend := &testBackend{mux, db, 0, new(event.Feed), new(event.Feed), new(event.Feed), new(event.Feed)}
+	filter := New(backend, 0, int64(headNum), []common.Address{common.Address{}}, nil)
+	filter.Logs(context.Background())
+	d := time.Since(start)
+	fmt.Println("Finished running filter benchmarks")
+	fmt.Println(" ", d, "total  ", d*time.Duration(1000000)/time.Duration(headNum+1), "per million blocks")
+	db.Close()
+}
diff --git a/eth/filters/filter.go b/eth/filters/filter.go
index f848bc6af..4f6c30058 100644
--- a/eth/filters/filter.go
+++ b/eth/filters/filter.go
@@ -18,11 +18,12 @@ package filters
 
 import (
 	"context"
-	"math"
 	"math/big"
+	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
@@ -34,167 +35,179 @@ type Backend interface {
 	EventMux() *event.TypeMux
 	HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
 	GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
+
 	SubscribeTxPreEvent(chan<- core.TxPreEvent) event.Subscription
 	SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
 	SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
 	SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
+
+	BloomStatus() (uint64, uint64)
+	ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
 }
 
 // Filter can be used to retrieve and filter logs.
 type Filter struct {
-	backend   Backend
-	useMipMap bool
+	backend Backend
 
 	db         ethdb.Database
 	begin, end int64
 	addresses  []common.Address
 	topics     [][]common.Hash
+
+	matcher *bloombits.Matcher
 }
 
 // New creates a new filter which uses a bloom filter on blocks to figure out whether
 // a particular block is interesting or not.
-// MipMaps allow past blocks to be searched much more efficiently, but are not available
-// to light clients.
-func New(backend Backend, useMipMap bool) *Filter {
+func New(backend Backend, begin, end int64, addresses []common.Address, topics [][]common.Hash) *Filter {
+	// Flatten the address and topic filter clauses into a single filter system
+	var filters [][][]byte
+	if len(addresses) > 0 {
+		filter := make([][]byte, len(addresses))
+		for i, address := range addresses {
+			filter[i] = address.Bytes()
+		}
+		filters = append(filters, filter)
+	}
+	for _, topicList := range topics {
+		filter := make([][]byte, len(topicList))
+		for i, topic := range topicList {
+			filter[i] = topic.Bytes()
+		}
+		filters = append(filters, filter)
+	}
+	// Assemble and return the filter
+	size, _ := backend.BloomStatus()
+
 	return &Filter{
 		backend:   backend,
-		useMipMap: useMipMap,
+		begin:     begin,
+		end:       end,
+		addresses: addresses,
+		topics:    topics,
 		db:        backend.ChainDb(),
+		matcher:   bloombits.NewMatcher(size, filters),
 	}
 }
 
-// SetBeginBlock sets the earliest block for filtering.
-// -1 = latest block (i.e., the current block)
-// hash = particular hash from-to
-func (f *Filter) SetBeginBlock(begin int64) {
-	f.begin = begin
-}
-
-// SetEndBlock sets the latest block for filtering.
-func (f *Filter) SetEndBlock(end int64) {
-	f.end = end
-}
-
-// SetAddresses matches only logs that are generated from addresses that are included
-// in the given addresses.
-func (f *Filter) SetAddresses(addr []common.Address) {
-	f.addresses = addr
-}
-
-// SetTopics matches only logs that have topics matching the given topics.
-func (f *Filter) SetTopics(topics [][]common.Hash) {
-	f.topics = topics
-}
-
-// FindOnce searches the blockchain for matching log entries, returning
-// all matching entries from the first block that contains matches,
-// updating the start point of the filter accordingly. If no results are
-// found, a nil slice is returned.
-func (f *Filter) FindOnce(ctx context.Context) ([]*types.Log, error) {
-	head, _ := f.backend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
-	if head == nil {
+// Logs searches the blockchain for matching log entries, returning all from the
+// first block that contains matches, updating the start of the filter accordingly.
+func (f *Filter) Logs(ctx context.Context) ([]*types.Log, error) {
+	// Figure out the limits of the filter range
+	header, _ := f.backend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
+	if header == nil {
 		return nil, nil
 	}
-	headBlockNumber := head.Number.Uint64()
+	head := header.Number.Uint64()
 
-	var beginBlockNo uint64 = uint64(f.begin)
 	if f.begin == -1 {
-		beginBlockNo = headBlockNumber
+		f.begin = int64(head)
 	}
-	var endBlockNo uint64 = uint64(f.end)
+	end := uint64(f.end)
 	if f.end == -1 {
-		endBlockNo = headBlockNumber
-	}
-
-	// if no addresses are present we can't make use of fast search which
-	// uses the mipmap bloom filters to check for fast inclusion and uses
-	// higher range probability in order to ensure at least a false positive
-	if !f.useMipMap || len(f.addresses) == 0 {
-		logs, blockNumber, err := f.getLogs(ctx, beginBlockNo, endBlockNo)
-		f.begin = int64(blockNumber + 1)
-		return logs, err
+		end = head
 	}
-
-	logs, blockNumber := f.mipFind(beginBlockNo, endBlockNo, 0)
-	f.begin = int64(blockNumber + 1)
-	return logs, nil
-}
-
-// Run filters logs with the current parameters set
-func (f *Filter) Find(ctx context.Context) (logs []*types.Log, err error) {
-	for {
-		newLogs, err := f.FindOnce(ctx)
-		if len(newLogs) == 0 || err != nil {
+	// Gather all indexed logs, and finish with non indexed ones
+	var (
+		logs []*types.Log
+		err  error
+	)
+	size, sections := f.backend.BloomStatus()
+	if indexed := sections * size; indexed > uint64(f.begin) {
+		if indexed > end {
+			logs, err = f.indexedLogs(ctx, end)
+		} else {
+			logs, err = f.indexedLogs(ctx, indexed-1)
+		}
+		if err != nil {
 			return logs, err
 		}
-		logs = append(logs, newLogs...)
 	}
+	rest, err := f.unindexedLogs(ctx, end)
+	logs = append(logs, rest...)
+	return logs, err
 }
 
-func (f *Filter) mipFind(start, end uint64, depth int) (logs []*types.Log, blockNumber uint64) {
-	level := core.MIPMapLevels[depth]
-	// normalise numerator so we can work in level specific batches and
-	// work with the proper range checks
-	for num := start / level * level; num <= end; num += level {
-		// find addresses in bloom filters
-		bloom := core.GetMipmapBloom(f.db, num, level)
-		// Don't bother checking the first time through the loop - we're probably picking
-		// up where a previous run left off.
-		first := true
-		for _, addr := range f.addresses {
-			if first || bloom.TestBytes(addr[:]) {
-				first = false
-				// range check normalised values and make sure that
-				// we're resolving the correct range instead of the
-				// normalised values.
-				start := uint64(math.Max(float64(num), float64(start)))
-				end := uint64(math.Min(float64(num+level-1), float64(end)))
-				if depth+1 == len(core.MIPMapLevels) {
-					l, blockNumber, _ := f.getLogs(context.Background(), start, end)
-					if len(l) > 0 {
-						return l, blockNumber
-					}
-				} else {
-					l, blockNumber := f.mipFind(start, end, depth+1)
-					if len(l) > 0 {
-						return l, blockNumber
-					}
-				}
+// indexedLogs returns the logs matching the filter criteria based on the bloom
+// bits indexed available locally or via the network.
+func (f *Filter) indexedLogs(ctx context.Context, end uint64) ([]*types.Log, error) {
+	// Create a matcher session and request servicing from the backend
+	matches := make(chan uint64, 64)
+
+	session, err := f.matcher.Start(uint64(f.begin), end, matches)
+	if err != nil {
+		return nil, err
+	}
+	defer session.Close(time.Second)
+
+	f.backend.ServiceFilter(ctx, session)
+
+	// Iterate over the matches until exhausted or context closed
+	var logs []*types.Log
+
+	for {
+		select {
+		case number, ok := <-matches:
+			// Abort if all matches have been fulfilled
+			if !ok {
+				f.begin = int64(end) + 1
+				return logs, nil
+			}
+			// Retrieve the suggested block and pull any truly matching logs
+			header, err := f.backend.HeaderByNumber(ctx, rpc.BlockNumber(number))
+			if header == nil || err != nil {
+				return logs, err
+			}
+			found, err := f.checkMatches(ctx, header)
+			if err != nil {
+				return logs, err
 			}
+			logs = append(logs, found...)
+
+		case <-ctx.Done():
+			return logs, ctx.Err()
 		}
 	}
-
-	return nil, end
 }
 
-func (f *Filter) getLogs(ctx context.Context, start, end uint64) (logs []*types.Log, blockNumber uint64, err error) {
-	for i := start; i <= end; i++ {
-		blockNumber := rpc.BlockNumber(i)
-		header, err := f.backend.HeaderByNumber(ctx, blockNumber)
+// indexedLogs returns the logs matching the filter criteria based on raw block
+// iteration and bloom matching.
+func (f *Filter) unindexedLogs(ctx context.Context, end uint64) ([]*types.Log, error) {
+	var logs []*types.Log
+
+	for ; f.begin <= int64(end); f.begin++ {
+		header, err := f.backend.HeaderByNumber(ctx, rpc.BlockNumber(f.begin))
 		if header == nil || err != nil {
-			return logs, end, err
+			return logs, err
 		}
-
-		// Use bloom filtering to see if this block is interesting given the
-		// current parameters
-		if f.bloomFilter(header.Bloom) {
-			// Get the logs of the block
-			receipts, err := f.backend.GetReceipts(ctx, header.Hash())
+		if bloomFilter(header.Bloom, f.addresses, f.topics) {
+			found, err := f.checkMatches(ctx, header)
 			if err != nil {
-				return nil, end, err
-			}
-			var unfiltered []*types.Log
-			for _, receipt := range receipts {
-				unfiltered = append(unfiltered, ([]*types.Log)(receipt.Logs)...)
-			}
-			logs = filterLogs(unfiltered, nil, nil, f.addresses, f.topics)
-			if len(logs) > 0 {
-				return logs, uint64(blockNumber), nil
+				return logs, err
 			}
+			logs = append(logs, found...)
 		}
 	}
+	return logs, nil
+}
 
-	return logs, end, nil
+// checkMatches checks if the receipts belonging to the given header contain any log events that
+// match the filter criteria. This function is called when the bloom filter signals a potential match.
+func (f *Filter) checkMatches(ctx context.Context, header *types.Header) (logs []*types.Log, err error) {
+	// Get the logs of the block
+	receipts, err := f.backend.GetReceipts(ctx, header.Hash())
+	if err != nil {
+		return nil, err
+	}
+	var unfiltered []*types.Log
+	for _, receipt := range receipts {
+		unfiltered = append(unfiltered, ([]*types.Log)(receipt.Logs)...)
+	}
+	logs = filterLogs(unfiltered, nil, nil, f.addresses, f.topics)
+	if len(logs) > 0 {
+		return logs, nil
+	}
+	return nil, nil
 }
 
 func includes(addresses []common.Address, a common.Address) bool {
@@ -251,10 +264,6 @@ Logs:
 	return ret
 }
 
-func (f *Filter) bloomFilter(bloom types.Bloom) bool {
-	return bloomFilter(bloom, f.addresses, f.topics)
-}
-
 func bloomFilter(bloom types.Bloom, addresses []common.Address, topics [][]common.Hash) bool {
 	if len(addresses) > 0 {
 		var included bool
diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go
index fcc888b8c..664ce07a5 100644
--- a/eth/filters/filter_system_test.go
+++ b/eth/filters/filter_system_test.go
@@ -20,12 +20,14 @@ import (
 	"context"
 	"fmt"
 	"math/big"
+	"math/rand"
 	"reflect"
 	"testing"
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/bloombits"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
@@ -36,6 +38,7 @@ import (
 type testBackend struct {
 	mux        *event.TypeMux
 	db         ethdb.Database
+	sections   uint64
 	txFeed     *event.Feed
 	rmLogsFeed *event.Feed
 	logsFeed   *event.Feed
@@ -84,6 +87,37 @@ func (b *testBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subsc
 	return b.chainFeed.Subscribe(ch)
 }
 
+func (b *testBackend) BloomStatus() (uint64, uint64) {
+	return params.BloomBitsBlocks, b.sections
+}
+
+func (b *testBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
+	requests := make(chan chan *bloombits.Retrieval)
+
+	go session.Multiplex(16, 0, requests)
+	go func() {
+		for {
+			// Wait for a service request or a shutdown
+			select {
+			case <-ctx.Done():
+				return
+
+			case request := <-requests:
+				task := <-request
+
+				task.Bitsets = make([][]byte, len(task.Sections))
+				for i, section := range task.Sections {
+					if rand.Int()%4 != 0 { // Handle occasional missing deliveries
+						head := core.GetCanonicalHash(b.db, (section+1)*params.BloomBitsBlocks-1)
+						task.Bitsets[i] = core.GetBloomBits(b.db, task.Bit, section, head)
+					}
+				}
+				request <- task
+			}
+		}
+	}()
+}
+
 // TestBlockSubscription tests if a block subscription returns block hashes for posted chain events.
 // It creates multiple subscriptions:
 // - one at the start and should receive all posted chain events and a second (blockHashes)
@@ -99,7 +133,7 @@ func TestBlockSubscription(t *testing.T) {
 		rmLogsFeed  = new(event.Feed)
 		logsFeed    = new(event.Feed)
 		chainFeed   = new(event.Feed)
-		backend     = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend     = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		api         = NewPublicFilterAPI(backend, false)
 		genesis     = new(core.Genesis).MustCommit(db)
 		chain, _    = core.GenerateChain(params.TestChainConfig, genesis, db, 10, func(i int, gen *core.BlockGen) {})
@@ -156,7 +190,7 @@ func TestPendingTxFilter(t *testing.T) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		api        = NewPublicFilterAPI(backend, false)
 
 		transactions = []*types.Transaction{
@@ -219,7 +253,7 @@ func TestLogFilterCreation(t *testing.T) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		api        = NewPublicFilterAPI(backend, false)
 
 		testCases = []struct {
@@ -268,7 +302,7 @@ func TestInvalidLogFilterCreation(t *testing.T) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		api        = NewPublicFilterAPI(backend, false)
 	)
 
@@ -298,7 +332,7 @@ func TestLogFilter(t *testing.T) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		api        = NewPublicFilterAPI(backend, false)
 
 		firstAddr      = common.HexToAddress("0x1111111111111111111111111111111111111111")
@@ -415,7 +449,7 @@ func TestPendingLogsSubscription(t *testing.T) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		api        = NewPublicFilterAPI(backend, false)
 
 		firstAddr      = common.HexToAddress("0x1111111111111111111111111111111111111111")
diff --git a/eth/filters/filter_test.go b/eth/filters/filter_test.go
index cf508a218..11235e95a 100644
--- a/eth/filters/filter_test.go
+++ b/eth/filters/filter_test.go
@@ -41,8 +41,8 @@ func makeReceipt(addr common.Address) *types.Receipt {
 	return receipt
 }
 
-func BenchmarkMipmaps(b *testing.B) {
-	dir, err := ioutil.TempDir("", "mipmap")
+func BenchmarkFilters(b *testing.B) {
+	dir, err := ioutil.TempDir("", "filtertest")
 	if err != nil {
 		b.Fatal(err)
 	}
@@ -55,7 +55,7 @@ func BenchmarkMipmaps(b *testing.B) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		key1, _    = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 		addr1      = crypto.PubkeyToAddress(key1.PublicKey)
 		addr2      = common.BytesToAddress([]byte("jeff"))
@@ -66,27 +66,21 @@ func BenchmarkMipmaps(b *testing.B) {
 
 	genesis := core.GenesisBlockForTesting(db, addr1, big.NewInt(1000000))
 	chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, db, 100010, func(i int, gen *core.BlockGen) {
-		var receipts types.Receipts
 		switch i {
 		case 2403:
 			receipt := makeReceipt(addr1)
-			receipts = types.Receipts{receipt}
 			gen.AddUncheckedReceipt(receipt)
 		case 1034:
 			receipt := makeReceipt(addr2)
-			receipts = types.Receipts{receipt}
 			gen.AddUncheckedReceipt(receipt)
 		case 34:
 			receipt := makeReceipt(addr3)
-			receipts = types.Receipts{receipt}
 			gen.AddUncheckedReceipt(receipt)
 		case 99999:
 			receipt := makeReceipt(addr4)
-			receipts = types.Receipts{receipt}
 			gen.AddUncheckedReceipt(receipt)
 
 		}
-		core.WriteMipmapBloom(db, uint64(i+1), receipts)
 	})
 	for i, block := range chain {
 		core.WriteBlock(db, block)
@@ -102,13 +96,10 @@ func BenchmarkMipmaps(b *testing.B) {
 	}
 	b.ResetTimer()
 
-	filter := New(backend, true)
-	filter.SetAddresses([]common.Address{addr1, addr2, addr3, addr4})
-	filter.SetBeginBlock(0)
-	filter.SetEndBlock(-1)
+	filter := New(backend, 0, -1, []common.Address{addr1, addr2, addr3, addr4}, nil)
 
 	for i := 0; i < b.N; i++ {
-		logs, _ := filter.Find(context.Background())
+		logs, _ := filter.Logs(context.Background())
 		if len(logs) != 4 {
 			b.Fatal("expected 4 logs, got", len(logs))
 		}
@@ -116,7 +107,7 @@ func BenchmarkMipmaps(b *testing.B) {
 }
 
 func TestFilters(t *testing.T) {
-	dir, err := ioutil.TempDir("", "mipmap")
+	dir, err := ioutil.TempDir("", "filtertest")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -129,7 +120,7 @@ func TestFilters(t *testing.T) {
 		rmLogsFeed = new(event.Feed)
 		logsFeed   = new(event.Feed)
 		chainFeed  = new(event.Feed)
-		backend    = &testBackend{mux, db, txFeed, rmLogsFeed, logsFeed, chainFeed}
+		backend    = &testBackend{mux, db, 0, txFeed, rmLogsFeed, logsFeed, chainFeed}
 		key1, _    = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 		addr       = crypto.PubkeyToAddress(key1.PublicKey)
 
@@ -142,7 +133,6 @@ func TestFilters(t *testing.T) {
 
 	genesis := core.GenesisBlockForTesting(db, addr, big.NewInt(1000000))
 	chain, receipts := core.GenerateChain(params.TestChainConfig, genesis, db, 1000, func(i int, gen *core.BlockGen) {
-		var receipts types.Receipts
 		switch i {
 		case 1:
 			receipt := types.NewReceipt(nil, false, new(big.Int))
@@ -153,7 +143,6 @@ func TestFilters(t *testing.T) {
 				},
 			}
 			gen.AddUncheckedReceipt(receipt)
-			receipts = types.Receipts{receipt}
 		case 2:
 			receipt := types.NewReceipt(nil, false, new(big.Int))
 			receipt.Logs = []*types.Log{
@@ -163,7 +152,6 @@ func TestFilters(t *testing.T) {
 				},
 			}
 			gen.AddUncheckedReceipt(receipt)
-			receipts = types.Receipts{receipt}
 		case 998:
 			receipt := types.NewReceipt(nil, false, new(big.Int))
 			receipt.Logs = []*types.Log{
@@ -173,7 +161,6 @@ func TestFilters(t *testing.T) {
 				},
 			}
 			gen.AddUncheckedReceipt(receipt)
-			receipts = types.Receipts{receipt}
 		case 999:
 			receipt := types.NewReceipt(nil, false, new(big.Int))
 			receipt.Logs = []*types.Log{
@@ -183,12 +170,7 @@ func TestFilters(t *testing.T) {
 				},
 			}
 			gen.AddUncheckedReceipt(receipt)
-			receipts = types.Receipts{receipt}
 		}
-		// i is used as block number for the writes but since the i
-		// starts at 0 and block 0 (genesis) is already present increment
-		// by one
-		core.WriteMipmapBloom(db, uint64(i+1), receipts)
 	})
 	for i, block := range chain {
 		core.WriteBlock(db, block)
@@ -203,23 +185,15 @@ func TestFilters(t *testing.T) {
 		}
 	}
 
-	filter := New(backend, true)
-	filter.SetAddresses([]common.Address{addr})
-	filter.SetTopics([][]common.Hash{{hash1, hash2, hash3, hash4}})
-	filter.SetBeginBlock(0)
-	filter.SetEndBlock(-1)
+	filter := New(backend, 0, -1, []common.Address{addr}, [][]common.Hash{{hash1, hash2, hash3, hash4}})
 
-	logs, _ := filter.Find(context.Background())
+	logs, _ := filter.Logs(context.Background())
 	if len(logs) != 4 {
 		t.Error("expected 4 log, got", len(logs))
 	}
 
-	filter = New(backend, true)
-	filter.SetAddresses([]common.Address{addr})
-	filter.SetTopics([][]common.Hash{{hash3}})
-	filter.SetBeginBlock(900)
-	filter.SetEndBlock(999)
-	logs, _ = filter.Find(context.Background())
+	filter = New(backend, 900, 999, []common.Address{addr}, [][]common.Hash{{hash3}})
+	logs, _ = filter.Logs(context.Background())
 	if len(logs) != 1 {
 		t.Error("expected 1 log, got", len(logs))
 	}
@@ -227,12 +201,8 @@ func TestFilters(t *testing.T) {
 		t.Errorf("expected log[0].Topics[0] to be %x, got %x", hash3, logs[0].Topics[0])
 	}
 
-	filter = New(backend, true)
-	filter.SetAddresses([]common.Address{addr})
-	filter.SetTopics([][]common.Hash{{hash3}})
-	filter.SetBeginBlock(990)
-	filter.SetEndBlock(-1)
-	logs, _ = filter.Find(context.Background())
+	filter = New(backend, 990, -1, []common.Address{addr}, [][]common.Hash{{hash3}})
+	logs, _ = filter.Logs(context.Background())
 	if len(logs) != 1 {
 		t.Error("expected 1 log, got", len(logs))
 	}
@@ -240,44 +210,32 @@ func TestFilters(t *testing.T) {
 		t.Errorf("expected log[0].Topics[0] to be %x, got %x", hash3, logs[0].Topics[0])
 	}
 
-	filter = New(backend, true)
-	filter.SetTopics([][]common.Hash{{hash1, hash2}})
-	filter.SetBeginBlock(1)
-	filter.SetEndBlock(10)
+	filter = New(backend, 1, 10, nil, [][]common.Hash{{hash1, hash2}})
 
-	logs, _ = filter.Find(context.Background())
+	logs, _ = filter.Logs(context.Background())
 	if len(logs) != 2 {
 		t.Error("expected 2 log, got", len(logs))
 	}
 
 	failHash := common.BytesToHash([]byte("fail"))
-	filter = New(backend, true)
-	filter.SetTopics([][]common.Hash{{failHash}})
-	filter.SetBeginBlock(0)
-	filter.SetEndBlock(-1)
+	filter = New(backend, 0, -1, nil, [][]common.Hash{{failHash}})
 
-	logs, _ = filter.Find(context.Background())
+	logs, _ = filter.Logs(context.Background())
 	if len(logs) != 0 {
 		t.Error("expected 0 log, got", len(logs))
 	}
 
 	failAddr := common.BytesToAddress([]byte("failmenow"))
-	filter = New(backend, true)
-	filter.SetAddresses([]common.Address{failAddr})
-	filter.SetBeginBlock(0)
-	filter.SetEndBlock(-1)
+	filter = New(backend, 0, -1, []common.Address{failAddr}, nil)
 
-	logs, _ = filter.Find(context.Background())
+	logs, _ = filter.Logs(context.Background())
 	if len(logs) != 0 {
 		t.Error("expected 0 log, got", len(logs))
 	}
 
-	filter = New(backend, true)
-	filter.SetTopics([][]common.Hash{{failHash}, {hash1}})
-	filter.SetBeginBlock(0)
-	filter.SetEndBlock(-1)
+	filter = New(backend, 0, -1, nil, [][]common.Hash{{failHash}, {hash1}})
 
-	logs, _ = filter.Find(context.Background())
+	logs, _ = filter.Logs(context.Background())
 	if len(logs) != 0 {
 		t.Error("expected 0 log, got", len(logs))
 	}