diff --git a/src/main/java/com/teragrep/rlo_06/RFC5424Parser.java b/src/main/java/com/teragrep/rlo_06/RFC5424Parser.java
index c8e9d40..c00ac53 100644
--- a/src/main/java/com/teragrep/rlo_06/RFC5424Parser.java
+++ b/src/main/java/com/teragrep/rlo_06/RFC5424Parser.java
@@ -54,6 +54,22 @@ public final class RFC5424Parser {
     private final ParserResultSet resultset;
     private final Consumer<Stream> streamConsumer;
 
+    public RFC5424Parser() {
+        this(new InputStream() {
+            @Override
+            public int read() {
+                return -1;
+            }
+        });
+    }
+
+    public RFC5424Parser(InputStream inputStream) {
+        this(inputStream, new RFC5424ParserSubscription());
+    }
+    public RFC5424Parser(InputStream inputStream, RFC5424ParserSubscription subscription) {
+        this(inputStream, subscription, new RFC5424ParserSDSubscription());
+    }
+
     public RFC5424Parser(InputStream inputStream, RFC5424ParserSubscription subscription, RFC5424ParserSDSubscription sdSubscription) {
         this(inputStream, subscription, sdSubscription, true);
     }
diff --git a/src/test/java/com/teragrep/rlo_06/EmptyParserInputTest.java b/src/test/java/com/teragrep/rlo_06/EmptyParserInputTest.java
new file mode 100644
index 0000000..5b5f744
--- /dev/null
+++ b/src/test/java/com/teragrep/rlo_06/EmptyParserInputTest.java
@@ -0,0 +1,18 @@
+package com.teragrep.rlo_06;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class EmptyParserInputTest {
+    @Test
+    void testEmptyParserInput() throws IOException {
+        // Should not break but also should not return any data
+        RFC5424Parser parser = new RFC5424Parser();
+        Assertions.assertFalse(parser.next());
+        ResultSetAsString resultsetAsString = new ResultSetAsString(parser.get());
+    }
+}
diff --git a/src/test/java/com/teragrep/rlo_06/tests/PerformanceTest.java b/src/test/java/com/teragrep/rlo_06/tests/PerformanceTest.java
index 3282d7c..d2f9159 100644
--- a/src/test/java/com/teragrep/rlo_06/tests/PerformanceTest.java
+++ b/src/test/java/com/teragrep/rlo_06/tests/PerformanceTest.java
@@ -45,10 +45,7 @@
  */
 package com.teragrep.rlo_06.tests;
 
-import com.teragrep.rlo_06.ParserResultSet;
-import com.teragrep.rlo_06.RFC5424Parser;
-import com.teragrep.rlo_06.RFC5424ParserSDSubscription;
-import com.teragrep.rlo_06.RFC5424ParserSubscription;
+import com.teragrep.rlo_06.*;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledIfSystemProperty;
@@ -117,8 +114,110 @@ void testShortPayloadPerformance() throws Exception {
         long msgsize = (count * SYSLOG_MESSAGE.length())/1024/1024;
         long spent = instant2.toEpochMilli()-instant1.toEpochMilli();
         System.out.println("testShortPayloadPerformance: time taken " + spent + " for " + count +
-                           ", total RPS: " + (float) count/ ((float) spent/1000) +
-                           ", " + (float) msgsize + " megabytes (" + (float) (msgsize/((float)spent/1000)) + " MB/s)");
+                ", total RPS: " + (float) count/ ((float) spent/1000) +
+                ", " + (float) msgsize + " megabytes (" + (float) (msgsize/((float)spent/1000)) + " MB/s)");
+
+    }
+
+    @Test
+    @DisabledIfSystemProperty(named = "noPerfTest", matches = "true")
+    void testOnlyMsgSub() throws Exception {
+
+        String SYSLOG_MESSAGE = "<14>1 2014-06-20T09:14:07.12345+00:00 host01 systemd DEA MSG-01 [ID_A@1 u=\"\\\"3\" e=\"t\"][ID_B@2 n=\"9\"][event_id@48577 hostname=\"sc-99-99-14-247\" uuid=\"0FD92E51B37748EB90CD894CCEE63907\" unixtime=\"1612047600.0\" id_source=\"source\"][event_node_source@48577 hostname=\"sc-99-99-14-247\" source=\"f17_ssmis_20210131v7.nc\" source_module=\"imfile\"][event_node_relay@48577 hostname=\"localhost\" source=\"sc-99-99-14-247\" source_module=\"imrelp\"][event_version@48577 major=\"2\" minor=\"2\" hostname=\"localhost\" version_source=\"relay\"][event_node_router@48577 source=\"logrouter.example.com\" source_module=\"imrelp\" hostname=\"localhost\"][teragrep@48577 streamname=\"log:f17:0\" directory=\"com_teragrep_audit\" unixtime=\"1612047600.0\"] sigsegv\n";
+        RFC5424ParserSubscription subscription = new RFC5424ParserSubscription();
+        subscription.add(ParserEnum.MSG);
+
+        InputStream inputStream = new ByteArrayInputStream( SYSLOG_MESSAGE.getBytes());
+        RFC5424Parser parser = new RFC5424Parser(inputStream, subscription, null);
+
+
+        Instant instant1 = Instant.now();
+        long count = 10000000;
+        for (long i = 0; i < count; i++) {
+            Assertions.assertTrue(parser.next());
+            inputStream.reset();
+        }
+        Instant instant2 = Instant.now();
+
+        long msgsize = (count * SYSLOG_MESSAGE.length())/1024/1024;
+        long spent = instant2.toEpochMilli()-instant1.toEpochMilli();
+        System.out.println("testOnlyMsgSub: time taken " + spent + " for " + count +
+                ", total RPS: " + (float) count/ ((float) spent/1000) +
+                ", " + (float) msgsize + " megabytes (" + (float) (msgsize/((float)spent/1000)) + " MB/s)");
+
+    }
+
+    @Test
+    @DisabledIfSystemProperty(named = "noPerfTest", matches = "true")
+    void testNothingSub() throws Exception {
+
+        String SYSLOG_MESSAGE = "<14>1 2014-06-20T09:14:07.12345+00:00 host01 systemd DEA MSG-01 [ID_A@1 u=\"\\\"3\" e=\"t\"][ID_B@2 n=\"9\"][event_id@48577 hostname=\"sc-99-99-14-247\" uuid=\"0FD92E51B37748EB90CD894CCEE63907\" unixtime=\"1612047600.0\" id_source=\"source\"][event_node_source@48577 hostname=\"sc-99-99-14-247\" source=\"f17_ssmis_20210131v7.nc\" source_module=\"imfile\"][event_node_relay@48577 hostname=\"localhost\" source=\"sc-99-99-14-247\" source_module=\"imrelp\"][event_version@48577 major=\"2\" minor=\"2\" hostname=\"localhost\" version_source=\"relay\"][event_node_router@48577 source=\"logrouter.example.com\" source_module=\"imrelp\" hostname=\"localhost\"][teragrep@48577 streamname=\"log:f17:0\" directory=\"com_teragrep_audit\" unixtime=\"1612047600.0\"] sigsegv\n";
+        RFC5424ParserSubscription subscription = new RFC5424ParserSubscription();
+        InputStream inputStream = new ByteArrayInputStream( SYSLOG_MESSAGE.getBytes());
+        RFC5424Parser parser = new RFC5424Parser(inputStream, subscription);
+
+        Instant instant1 = Instant.now();
+        long count = 10000000;
+        for (long i = 0; i < count; i++) {
+            Assertions.assertTrue(parser.next());
+            inputStream.reset();
+        }
+        Instant instant2 = Instant.now();
+
+        long msgsize = (count * SYSLOG_MESSAGE.length())/1024/1024;
+        long spent = instant2.toEpochMilli()-instant1.toEpochMilli();
+        System.out.println("testNothingSub: time taken " + spent + " for " + count +
+                ", total RPS: " + (float) count/ ((float) spent/1000) +
+                ", " + (float) msgsize + " megabytes (" + (float) (msgsize/((float)spent/1000)) + " MB/s)");
+
+    }
+
+    @Test
+    @DisabledIfSystemProperty(named = "noPerfTest", matches = "true")
+    void testDashesFullSub() throws Exception {
+
+        String SYSLOG_MESSAGE = "<2>1  - - - - - ";
+        InputStream inputStream = new ByteArrayInputStream( SYSLOG_MESSAGE.getBytes());
+        RFC5424Parser parser = new RFC5424Parser(inputStream, null);
+
+        Instant instant1 = Instant.now();
+        long count = 100000000;
+        for (long i = 0; i < count; i++) {
+            Assertions.assertTrue(parser.next());
+            inputStream.reset();
+        }
+        Instant instant2 = Instant.now();
+
+        long msgsize = (count * SYSLOG_MESSAGE.length())/1024/1024;
+        long spent = instant2.toEpochMilli()-instant1.toEpochMilli();
+        System.out.println("testDashesFullSub: time taken " + spent + " for " + count +
+                ", total RPS: " + (float) count/ ((float) spent/1000) +
+                ", " + (float) msgsize + " megabytes (" + (float) (msgsize/((float)spent/1000)) + " MB/s)");
+
+    }
+
+    @Test
+    @DisabledIfSystemProperty(named = "noPerfTest", matches = "true")
+    void testDashesNoSub() throws Exception {
+
+        String SYSLOG_MESSAGE = "<2>1  - - - - - ";
+        RFC5424ParserSubscription subscription = new RFC5424ParserSubscription();
+        InputStream inputStream = new ByteArrayInputStream( SYSLOG_MESSAGE.getBytes());
+        RFC5424Parser parser = new RFC5424Parser(inputStream, subscription);
+
+        Instant instant1 = Instant.now();
+        long count = 100000000;
+        for (long i = 0; i < count; i++) {
+            Assertions.assertTrue(parser.next());
+            inputStream.reset();
+        }
+        Instant instant2 = Instant.now();
+
+        long msgsize = (count * SYSLOG_MESSAGE.length())/1024/1024;
+        long spent = instant2.toEpochMilli()-instant1.toEpochMilli();
+        System.out.println("testDashesNoSub: time taken " + spent + " for " + count +
+                ", total RPS: " + (float) count/ ((float) spent/1000) +
+                ", " + (float) msgsize + " megabytes (" + (float) (msgsize/((float)spent/1000)) + " MB/s)");
 
     }
 }