diff --git a/cmd/obitools/obiannotate/main.go b/cmd/obitools/obiannotate/main.go
index a7d72c3..84dbcc6 100644
--- a/cmd/obitools/obiannotate/main.go
+++ b/cmd/obitools/obiannotate/main.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"os"
-	"runtime/pprof"
-
-	log "github.com/sirupsen/logrus"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obioptions"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obiseq"
@@ -17,12 +14,12 @@ func main() {
 	defer obiseq.LogBioSeqStatus()
 
 	// go tool pprof -http=":8000" ./obipairing ./cpu.pprof
-	f, err := os.Create("cpu.pprof")
-	if err != nil {
-		log.Fatal(err)
-	}
-	pprof.StartCPUProfile(f)
-	defer pprof.StopCPUProfile()
+	// f, err := os.Create("cpu.pprof")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
 
 	// go tool trace cpu.trace
 	// ftrace, err := os.Create("cpu.trace")
diff --git a/cmd/obitools/obigrep/main.go b/cmd/obitools/obigrep/main.go
index 0b38bdd..eea5cde 100644
--- a/cmd/obitools/obigrep/main.go
+++ b/cmd/obitools/obigrep/main.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"os"
-	"runtime/pprof"
-
-	log "github.com/sirupsen/logrus"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obioptions"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obiseq"
@@ -17,12 +14,12 @@ func main() {
 	defer obiseq.LogBioSeqStatus()
 
 	// go tool pprof -http=":8000" ./obipairing ./cpu.pprof
-	f, err := os.Create("cpu.pprof")
-	if err != nil {
-		log.Fatal(err)
-	}
-	pprof.StartCPUProfile(f)
-	defer pprof.StopCPUProfile()
+	// f, err := os.Create("cpu.pprof")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
 
 	// go tool trace cpu.trace
 	// ftrace, err := os.Create("cpu.trace")
diff --git a/cmd/obitools/obimultiplex/main.go b/cmd/obitools/obimultiplex/main.go
index 120385c..ccf44d8 100644
--- a/cmd/obitools/obimultiplex/main.go
+++ b/cmd/obitools/obimultiplex/main.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"os"
-	"runtime/pprof"
-
-	log "github.com/sirupsen/logrus"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obioptions"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obitools/obiconvert"
@@ -13,12 +10,12 @@ import (
 
 func main() {
 
-	f, err := os.Create("cpu.pprof")
-	if err != nil {
-		log.Fatal(err)
-	}
-	pprof.StartCPUProfile(f)
-	defer pprof.StopCPUProfile()
+	// f, err := os.Create("cpu.pprof")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
 
 	// ftrace, err := os.Create("cpu.trace")
 	// if err != nil {
diff --git a/cmd/obitools/obipairing/main.go b/cmd/obitools/obipairing/main.go
index aa349d9..90ade38 100644
--- a/cmd/obitools/obipairing/main.go
+++ b/cmd/obitools/obipairing/main.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"os"
-	"runtime/trace"
-
-	log "github.com/sirupsen/logrus"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obioptions"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obitools/obiconvert"
@@ -22,12 +19,12 @@ func main() {
 	// defer pprof.StopCPUProfile()
 
 	// go tool trace cpu.trace
-	ftrace, err := os.Create("cpu.trace")
-	if err != nil {
-		log.Fatal(err)
-	}
-	trace.Start(ftrace)
-	defer trace.Stop()
+	// ftrace, err := os.Create("cpu.trace")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// trace.Start(ftrace)
+	// defer trace.Stop()
 
 	optionParser := obioptions.GenerateOptionParser(obipairing.OptionSet)
 
diff --git a/cmd/obitools/obipcr/main.go b/cmd/obitools/obipcr/main.go
index 14e5b01..c37c8c4 100644
--- a/cmd/obitools/obipcr/main.go
+++ b/cmd/obitools/obipcr/main.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"os"
-	"runtime/pprof"
-
-	log "github.com/sirupsen/logrus"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obioptions"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obitools/obiconvert"
@@ -14,12 +11,12 @@ import (
 func main() {
 
 	// go tool pprof -http=":8000" ./obipairing ./cpu.pprof
-	f, err := os.Create("cpu.pprof")
-	if err != nil {
-		log.Fatal(err)
-	}
-	pprof.StartCPUProfile(f)
-	defer pprof.StopCPUProfile()
+	// f, err := os.Create("cpu.pprof")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
 
 	// go tool trace cpu.trace
 	// ftrace, err := os.Create("cpu.trace")
diff --git a/cmd/obitools/obitag/main.go b/cmd/obitools/obitag/main.go
index aa33b7a..21efffe 100644
--- a/cmd/obitools/obitag/main.go
+++ b/cmd/obitools/obitag/main.go
@@ -2,9 +2,7 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"os"
-	"runtime/pprof"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obitools/obiconvert"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obitools/obitag"
@@ -15,12 +13,12 @@ import (
 func main() {
 
 	// go tool pprof -http=":8000" ./build/obitag ./cpu.pprof
-	f, err := os.Create("cpu.pprof")
-	if err != nil {
-		log.Fatal(err)
-	}
-	pprof.StartCPUProfile(f)
-	defer pprof.StopCPUProfile()
+	// f, err := os.Create("cpu.pprof")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
 
 	// go tool trace cpu.trace
 	// ftrace, err := os.Create("cpu.trace")
diff --git a/cmd/obitools/obiuniq/main.go b/cmd/obitools/obiuniq/main.go
index 58f3c83..3ad4360 100644
--- a/cmd/obitools/obiuniq/main.go
+++ b/cmd/obitools/obiuniq/main.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"os"
-	"runtime/pprof"
-
-	log "github.com/sirupsen/logrus"
 
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obioptions"
 	"git.metabarcoding.org/lecasofts/go/obitools/pkg/obiseq"
@@ -17,12 +14,12 @@ func main() {
 	defer obiseq.LogBioSeqStatus()
 
 	// go tool pprof -http=":8000" ./obipairing ./cpu.pprof
-	f, err := os.Create("cpu.pprof")
-	if err != nil {
-		log.Fatal(err)
-	}
-	pprof.StartCPUProfile(f)
-	defer pprof.StopCPUProfile()
+	// f, err := os.Create("cpu.pprof")
+	// if err != nil {
+	// 	log.Fatal(err)
+	// }
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
 
 	// go tool trace cpu.trace
 	// ftrace, err := os.Create("cpu.trace")