From 498433e351b451dc5af7119464bd54dcf7f07120 Mon Sep 17 00:00:00 2001
From: "alex.sharov" <AskAlexSharov@gmail.com>
Date: Sun, 5 May 2024 10:20:34 +0700
Subject: [PATCH 1/4] BenchmarkTxn_Get

---
 mdbx/cursor_test.go | 47 +++++++++++++++++++++++++++++++++++++++++++--
 mdbx/txn_test.go    | 36 ++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 2 deletions(-)

diff --git a/mdbx/cursor_test.go b/mdbx/cursor_test.go
index 5f59f91..f85733a 100644
--- a/mdbx/cursor_test.go
+++ b/mdbx/cursor_test.go
@@ -3,6 +3,7 @@ package mdbx
 
 import (
 	"bytes"
+	"encoding/binary"
 	"encoding/hex"
 	"fmt"
 	"os"
@@ -1263,8 +1264,9 @@ func TestCursor_Del_DupSort(t *testing.T) {
 		if err != nil {
 			panic(err)
 		}
-		fmt.Printf("kk: %s\n", kk)
-		fmt.Printf("vv: %s\n", vv)
+		_, _ = kk, vv //TODO: add assert
+		//fmt.Printf("kk: %s\n", kk)
+		//fmt.Printf("vv: %s\n", vv)
 
 		return nil
 	})
@@ -1563,3 +1565,44 @@ func BenchmarkCursor_Renew(b *testing.B) {
 		return nil
 	})
 }
+
+func BenchmarkCursor_SetRange(b *testing.B) {
+	env, _ := setup(b)
+
+	var db DBI
+	k := make([]byte, 8)
+	binary.BigEndian.PutUint64(k, uint64(1))
+
+	if err := env.Update(func(txn *Txn) (err error) {
+		db, err = txn.OpenRoot(0)
+		if err != nil {
+			return err
+		}
+		err = txn.Put(db, k, k, 0)
+		if err != nil {
+			return err
+		}
+		return nil
+	}); err != nil {
+		b.Errorf("dbi: %v", err)
+		return
+	}
+
+	if err := env.View(func(txn *Txn) (err error) {
+		c, err := txn.OpenCursor(db)
+		if err != nil {
+			return err
+		}
+
+		b.ResetTimer()
+		for i := 0; i < b.N; i++ {
+			_, _, err := c.Get(k, nil, SetRange)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	}); err != nil {
+		b.Errorf("put: %v", err)
+	}
+}
diff --git a/mdbx/txn_test.go b/mdbx/txn_test.go
index 515ac3a..60f0dce 100644
--- a/mdbx/txn_test.go
+++ b/mdbx/txn_test.go
@@ -1263,6 +1263,42 @@ func openDBI(env *Env, key string, flags uint) (DBI, error) {
 	return db, nil
 }
 
+func BenchmarkTxn_Get(b *testing.B) {
+	env, _ := setup(b)
+
+	var db DBI
+	k := make([]byte, 8)
+	binary.BigEndian.PutUint64(k, uint64(1))
+
+	if err := env.Update(func(txn *Txn) (err error) {
+		db, err = txn.OpenRoot(0)
+		if err != nil {
+			return err
+		}
+		err = txn.Put(db, k, k, 0)
+		if err != nil {
+			return err
+		}
+		return nil
+	}); err != nil {
+		b.Errorf("dbi: %v", err)
+		return
+	}
+
+	if err := env.View(func(txn *Txn) (err error) {
+		b.ResetTimer()
+		for i := 0; i < b.N; i++ {
+			_, err := txn.Get(db, k)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	}); err != nil {
+		b.Errorf("put: %v", err)
+	}
+}
+
 func TestTxnEnvWarmup(t *testing.T) {
 	env, _ := setup(t)
 

From 035d047ab725c4413b908b6c00187ac98fff1619 Mon Sep 17 00:00:00 2001
From: "alex.sharov" <AskAlexSharov@gmail.com>
Date: Sun, 5 May 2024 10:29:36 +0700
Subject: [PATCH 2/4] symbolizer for

---
 dbg/keep.go      | 1 +
 dbg/pprof_cgo.go | 8 ++++++++
 go.mod           | 5 +++++
 mdbx/env.go      | 2 ++
 4 files changed, 16 insertions(+)
 create mode 100644 dbg/keep.go
 create mode 100644 dbg/pprof_cgo.go

diff --git a/dbg/keep.go b/dbg/keep.go
new file mode 100644
index 0000000..4744c85
--- /dev/null
+++ b/dbg/keep.go
@@ -0,0 +1 @@
+package dbg
diff --git a/dbg/pprof_cgo.go b/dbg/pprof_cgo.go
new file mode 100644
index 0000000..28ddf5e
--- /dev/null
+++ b/dbg/pprof_cgo.go
@@ -0,0 +1,8 @@
+//go:build debug
+// +build debug
+
+package dbg
+
+import (
+	_ "github.com/benesch/cgosymbolizer"
+)
diff --git a/go.mod b/go.mod
index c57a9ef..3b68f44 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,8 @@
 module github.com/erigontech/mdbx-go
 
 go 1.15
+
+require (
+	github.com/benesch/cgosymbolizer v0.0.0-20190515212042-bec6fe6e597b
+	github.com/ianlancetaylor/cgosymbolizer v0.0.0-20240503222823-736c933a666d // indirect
+)
diff --git a/mdbx/env.go b/mdbx/env.go
index 42860c1..00296d9 100644
--- a/mdbx/env.go
+++ b/mdbx/env.go
@@ -13,6 +13,8 @@ import (
 	"sync"
 	"time"
 	"unsafe"
+
+	_ "github.com/erigontech/mdbx-go/dbg"
 )
 
 // success is a value returned from the MDBX API to indicate a successful call.

From 0e0d559f4b37f327cd5072a7ef4c3c1e3f4454bf Mon Sep 17 00:00:00 2001
From: "alex.sharov" <AskAlexSharov@gmail.com>
Date: Wed, 8 May 2024 11:35:19 +0700
Subject: [PATCH 3/4] save

---
 go.sum | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 go.sum

diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..76fb53b
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,4 @@
+github.com/benesch/cgosymbolizer v0.0.0-20190515212042-bec6fe6e597b h1:5JgaFtHFRnOPReItxvhMDXbvuBkjSWE+9glJyF466yw=
+github.com/benesch/cgosymbolizer v0.0.0-20190515212042-bec6fe6e597b/go.mod h1:eMD2XUcPsHYbakFEocKrWZp47G0MRJYoC60qFblGjpA=
+github.com/ianlancetaylor/cgosymbolizer v0.0.0-20240503222823-736c933a666d h1:Azx2B59D4+zpVVtuYb8Oe3uOLi/ift4xfwKdhBX0Cy0=
+github.com/ianlancetaylor/cgosymbolizer v0.0.0-20240503222823-736c933a666d/go.mod h1:DvXTE/K/RtHehxU8/GtDs4vFtfw64jJ3PaCnFri8CRg=

From 02cb1c2c8c6464c754a7cbcc81ae0e7e555d02d4 Mon Sep 17 00:00:00 2001
From: "alex.sharov" <AskAlexSharov@gmail.com>
Date: Wed, 8 May 2024 11:35:51 +0700
Subject: [PATCH 4/4] save

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 905eda4..d23e47a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,5 +28,6 @@ _cgo_export.*
 _testmain.go
 
 *.exe
+*.out
 
 go.work*