Add decimal serialization benchmark

Author: puzpuzpuz

tcp_sender_test.go

@@ -459,3 +459,30 @@ func BenchmarkLineSenderNoFlush(b *testing.B) {
 	}
 	sender.Flush(ctx)
 }
+
+func BenchmarkHttpLineSenderDecimal(b *testing.B) {
+	const decimalStr = "123456.789"
+
+	ctx := context.Background()
+
+	srv, err := newTestHttpServer(readAndDiscard)
+	assert.NoError(b, err)
+	defer srv.Close()
+
+	sender, err := qdb.NewLineSender(ctx, qdb.WithHttp(), qdb.WithAddress(srv.Addr()))
+	assert.NoError(b, err)
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		for j := 0; j < 1000; j++ {
+			d := qdb.NewDecimalFromInt64(int64(i), 3)
+			sender.
+				Table(testTable).
+				DecimalColumnScaled("dec_col", d).
+				DecimalColumnString("dec_col2", decimalStr).
+				At(ctx, time.UnixMicro(int64(1000*i)))
+		}
+		sender.Flush(ctx)
+		sender.Close(ctx)
+	}
+}