diff --git a/cmd/otelbench/main.go b/cmd/otelbench/main.go
new file mode 100644
index 00000000..b346477a
--- /dev/null
+++ b/cmd/otelbench/main.go
@@ -0,0 +1,28 @@
+// Binary otelbench implements benchmarking suite for oteldb.
+package main
+
+import (
+	"context"
+	"os"
+	"os/signal"
+
+	"github.com/spf13/cobra"
+)
+
+func main() {
+	rootCmd := &cobra.Command{
+		Use:   "otelbench",
+		Short: "otelbench is a benchmarking suite for querying oteldb",
+
+		SilenceUsage: true,
+	}
+	rootCmd.AddCommand(
+		newPromQLCommand(),
+	)
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
+	defer stop()
+	if err := rootCmd.ExecuteContext(ctx); err != nil {
+		_, _ = os.Stderr.WriteString(err.Error() + "\n")
+		os.Exit(1)
+	}
+}
diff --git a/cmd/otelbench/promql.go b/cmd/otelbench/promql.go
new file mode 100644
index 00000000..918b02c7
--- /dev/null
+++ b/cmd/otelbench/promql.go
@@ -0,0 +1,167 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/schollz/progressbar/v3"
+	"github.com/spf13/cobra"
+
+	"github.com/go-faster/oteldb/internal/promapi"
+	"github.com/go-faster/oteldb/internal/promproxy"
+)
+
+type PromQL struct {
+	Addr           string
+	Input          string
+	RequestTimeout time.Duration
+
+	client *promapi.Client
+}
+
+func (p *PromQL) Setup() error {
+	var err error
+	p.client, err = promapi.NewClient(p.Addr)
+	if err != nil {
+		return errors.Wrap(err, "create client")
+	}
+	return nil
+}
+
+func toPrometheusTimestamp(t time.Time) promapi.PrometheusTimestamp {
+	return promapi.PrometheusTimestamp(strconv.FormatInt(t.Unix(), 10))
+}
+
+func (p *PromQL) sendRangeQuery(ctx context.Context, q promproxy.RangeQuery) error {
+	if _, err := p.client.GetQueryRange(ctx, promapi.GetQueryRangeParams{
+		Query: q.Query,
+		Step:  strconv.Itoa(q.Step),
+		Start: toPrometheusTimestamp(q.Start),
+		End:   toPrometheusTimestamp(q.End),
+	}); err != nil {
+		return errors.Wrap(err, "get query range")
+	}
+	return nil
+}
+
+func toOptPrometheusTimestamp(t promproxy.OptDateTime) promapi.OptPrometheusTimestamp {
+	if !t.IsSet() {
+		return promapi.OptPrometheusTimestamp{}
+	}
+	return promapi.NewOptPrometheusTimestamp(toPrometheusTimestamp(t.Value))
+}
+
+func (p *PromQL) sendInstantQuery(ctx context.Context, q promproxy.InstantQuery) error {
+	if _, err := p.client.GetQuery(ctx, promapi.GetQueryParams{
+		Query: q.Query,
+		Time:  toOptPrometheusTimestamp(q.Time),
+	}); err != nil {
+		return errors.Wrap(err, "get query")
+	}
+	return nil
+}
+
+func (p *PromQL) sendSeriesQuery(ctx context.Context, query promproxy.SeriesQuery) error {
+	if _, err := p.client.GetSeries(ctx, promapi.GetSeriesParams{
+		Start: toOptPrometheusTimestamp(query.Start),
+		End:   toOptPrometheusTimestamp(query.End),
+		Match: query.Matchers,
+	}); err != nil {
+		return errors.Wrap(err, "get series")
+	}
+	return nil
+}
+
+func (p *PromQL) send(ctx context.Context, q promproxy.Query) error {
+	ctx, cancel := context.WithTimeout(ctx, p.RequestTimeout)
+	defer cancel()
+	switch q.Type {
+	case promproxy.InstantQueryQuery:
+		return p.sendInstantQuery(ctx, q.InstantQuery)
+	case promproxy.RangeQueryQuery:
+		return p.sendRangeQuery(ctx, q.RangeQuery)
+	case promproxy.SeriesQueryQuery:
+		return p.sendSeriesQuery(ctx, q.SeriesQuery)
+	default:
+		return errors.Errorf("unknown query type %q", q.Type)
+	}
+}
+
+func (p *PromQL) each(ctx context.Context, fn func(ctx context.Context, q promproxy.Query) error) error {
+	f, err := os.Open(p.Input)
+	if err != nil {
+		return errors.Wrap(err, "read")
+	}
+	defer func() {
+		_ = f.Close()
+	}()
+	d := json.NewDecoder(f)
+	for {
+		var q promproxy.Query
+		if err := d.Decode(&q); err != nil {
+			if errors.Is(err, io.EOF) {
+				break
+			}
+			return errors.Wrap(err, "decode query")
+		}
+		if err := fn(ctx, q); err != nil {
+			return errors.Wrap(err, "callback")
+		}
+	}
+	return nil
+}
+
+func (p *PromQL) Run(ctx context.Context) error {
+	fmt.Println("sending", p.Input, "to", p.Addr)
+	var total int64
+	if err := p.each(ctx, func(ctx context.Context, q promproxy.Query) error {
+		total++
+		return nil
+	}); err != nil {
+		return errors.Wrap(err, "count total")
+	}
+	pb := progressbar.Default(total)
+	start := time.Now()
+	if err := p.each(ctx, func(ctx context.Context, q promproxy.Query) error {
+		if err := p.send(ctx, q); err != nil {
+			return errors.Wrap(err, "send")
+		}
+		if err := pb.Add(1); err != nil {
+			return errors.Wrap(err, "update progress bar")
+		}
+		return nil
+	}); err != nil {
+		_ = pb.Exit()
+		return errors.Wrap(err, "send")
+	}
+	if err := pb.Finish(); err != nil {
+		return errors.Wrap(err, "finish progress bar")
+	}
+	fmt.Println("done in", time.Since(start).Round(time.Millisecond))
+	return nil
+}
+
+func newPromQLCommand() *cobra.Command {
+	p := &PromQL{}
+	cmd := &cobra.Command{
+		Use:   "promql",
+		Short: "Run promql queries",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := p.Setup(); err != nil {
+				return errors.Wrap(err, "setup")
+			}
+			return p.Run(cmd.Context())
+		},
+	}
+	f := cmd.Flags()
+	f.StringVar(&p.Addr, "addr", "http://localhost:9090", "Prometheus address")
+	f.StringVarP(&p.Input, "input", "i", "queries.jsonl", "Input file")
+	f.DurationVar(&p.RequestTimeout, "request-timeout", time.Second*10, "Request timeout")
+	return cmd
+}
diff --git a/cmd/oteldb/config.go b/cmd/oteldb/config.go
index 88f1c6fe..36d5dbc4 100644
--- a/cmd/oteldb/config.go
+++ b/cmd/oteldb/config.go
@@ -35,7 +35,7 @@ func loadConfig(name string) (cfg Config, _ error) {
 	return cfg, nil
 }
 
-// Config is a oteldb config.
+// Config is the oteldb config.
 type Config struct {
 	DSN         string            `json:"dsn" yaml:"dsn"`
 	TTL         time.Duration     `json:"ttl" yaml:"ttl"`
diff --git a/dev/local/ch-bench-read/docker-compose.yml b/dev/local/ch-bench-read/docker-compose.yml
index 64f73029..e3b14ea2 100644
--- a/dev/local/ch-bench-read/docker-compose.yml
+++ b/dev/local/ch-bench-read/docker-compose.yml
@@ -21,9 +21,12 @@ services:
     build:
       context: ../../../
       dockerfile: Dockerfile
+    command:
+      - --config=/etc/otel/cfg.yml
+    volumes:
+      - ./oteldb.yml:/etc/otel/cfg.yml:ro
     environment:
       - OTELDB_STORAGE=ch
-      - CH_DSN=clickhouse://clickhouse:9000
       - OTEL_LOG_LEVEL=info
       - OTEL_METRICS_EXPORTER=none
       - OTEL_LOGS_EXPORTER=none
diff --git a/dev/local/ch-bench-read/oteldb.yml b/dev/local/ch-bench-read/oteldb.yml
new file mode 100644
index 00000000..587a6bb7
--- /dev/null
+++ b/dev/local/ch-bench-read/oteldb.yml
@@ -0,0 +1,20 @@
+prometheus:
+  bind: 0.0.0.0:9090
+  max_samples: 1_000_000
+  timeout: 1m
+  enable_negative_offset: true
+health_check:
+  bind: 0.0.0.0:13133
+otelcol:
+  receivers:
+    prometheusremotewrite:
+      endpoint: 0.0.0.0:19291
+      time_threshold: 100_000 # hours
+  exporters:
+    oteldbexporter:
+      dsn: clickhouse://clickhouse:9000
+  service:
+    pipelines:
+      metrics:
+        receivers: [prometheusremotewrite]
+        exporters: [oteldbexporter]