diff --git a/src/internal.cpp b/src/internal.cpp
index 82b515a..a6c5937 100644
--- a/src/internal.cpp
+++ b/src/internal.cpp
@@ -37,8 +37,11 @@ namespace vkvm {
 
     auto callEvent(EventType type) -> bool {
         auto ivt = getInterrupTable();
-        if (ivt[type].pid != 0) {
-            sendSignal(ivt[type].pid, ivt[type].signum);
+        for(int i = 0; i < impl.interruptEntrysPerEventType;i++){
+            auto &entry= ivt[type * impl.interruptEntrysPerEventType + i];
+            if (entry.pid != 0) {
+                sendSignal(entry.pid, entry.signum);
+            }
         }
         return true;
     }
diff --git a/src/internal.hpp b/src/internal.hpp
index d237f92..a2fe49f 100644
--- a/src/internal.hpp
+++ b/src/internal.hpp
@@ -54,7 +54,8 @@ constexpr int keyboardBufferSize = 16;
         int sharedMemoryPid;
         key_t sharedMemoryKey;
         int sharedMemorySize;
-        int interruptEntyCount = 64; //NOLINT
+        int interruptEntyCount = 256; //NOLINT
+        int interruptEntrysPerEventType = 8;
         int reservedSize = 1024; //NOLINT
         std::vector<std::function<void()>> eventTable;
     };
diff --git a/src/vkvm.cpp b/src/vkvm.cpp
index 3493667..57cf76e 100644
--- a/src/vkvm.cpp
+++ b/src/vkvm.cpp
@@ -37,21 +37,27 @@ namespace vkvm {
 
         lockSharedMemory();
 
-        ivt[type].pid = getpid();
-        ivt[type].signum = signum;
-        impl.eventTable.push_back(handler);
+        for(int i = 0; i < impl.interruptEntrysPerEventType;i++){
+            auto &entry= ivt[type * impl.interruptEntrysPerEventType + i];
+            if (entry.pid == 0) {
 
-        onSignal(signum, [](int sig){
-            if(sig >= SIGUSR1){
-                if((sig - SIGUSR1) < impl.eventTable.size()){
-                    impl.eventTable[sig - SIGUSR1]();
-                }
+                entry.pid = getpid();
+                entry.signum = signum;
+                impl.eventTable.push_back(handler);
+
+                onSignal(signum, [](int sig){
+                    if(sig >= SIGUSR1){
+                        if((sig - SIGUSR1) < impl.eventTable.size()){
+                            impl.eventTable[sig - SIGUSR1]();
+                        }
+                    }
+                });
+                unlockSharedMemory();
+                return true;
             }
-        });
-
+        }
         unlockSharedMemory();
-
-        return true;
+        return false;
     }
 
     auto setPixel(int x, int y, Color color) -> bool {