diff --git a/level_zero/core/source/helpers/api_specific_config_l0.cpp b/level_zero/core/source/helpers/api_specific_config_l0.cpp
index 8555421160..b4bb93bc86 100644
--- a/level_zero/core/source/helpers/api_specific_config_l0.cpp
+++ b/level_zero/core/source/helpers/api_specific_config_l0.cpp
@@ -14,8 +14,8 @@
 #include <vector>
 
 namespace NEO {
-std::vector<const char *> validL0Prefixes;
-std::vector<NEO::DebugVarPrefix> validL0PrefixTypes;
+StackVec<const char *, 4> validL0Prefixes;
+StackVec<NEO::DebugVarPrefix, 4> validL0PrefixTypes;
 bool ApiSpecificConfig::isStatelessCompressionSupported() {
     return false;
 }
@@ -61,11 +61,11 @@ void ApiSpecificConfig::initPrefixes() {
     validL0PrefixTypes = {DebugVarPrefix::Neo_L0, DebugVarPrefix::Neo, DebugVarPrefix::None};
 }
 
-const std::vector<const char *> &ApiSpecificConfig::getPrefixStrings() {
+const StackVec<const char *, 4> &ApiSpecificConfig::getPrefixStrings() {
     return validL0Prefixes;
 }
 
-const std::vector<DebugVarPrefix> &ApiSpecificConfig::getPrefixTypes() {
+const StackVec<DebugVarPrefix, 4> &ApiSpecificConfig::getPrefixTypes() {
     return validL0PrefixTypes;
 }
 } // namespace NEO
diff --git a/opencl/source/helpers/api_specific_config_ocl.cpp b/opencl/source/helpers/api_specific_config_ocl.cpp
index 17563a6d23..9dce002dcd 100644
--- a/opencl/source/helpers/api_specific_config_ocl.cpp
+++ b/opencl/source/helpers/api_specific_config_ocl.cpp
@@ -14,8 +14,8 @@
 #include <vector>
 
 namespace NEO {
-std::vector<const char *> validClPrefixes;
-std::vector<NEO::DebugVarPrefix> validClPrefixTypes;
+StackVec<const char *, 4> validClPrefixes;
+StackVec<NEO::DebugVarPrefix, 4> validClPrefixTypes;
 bool ApiSpecificConfig::isStatelessCompressionSupported() {
     return true;
 }
@@ -61,11 +61,11 @@ void ApiSpecificConfig::initPrefixes() {
     validClPrefixTypes = {DebugVarPrefix::Neo_Ocl, DebugVarPrefix::Neo, DebugVarPrefix::None};
 }
 
-const std::vector<const char *> &ApiSpecificConfig::getPrefixStrings() {
+const StackVec<const char *, 4> &ApiSpecificConfig::getPrefixStrings() {
     return validClPrefixes;
 }
 
-const std::vector<DebugVarPrefix> &ApiSpecificConfig::getPrefixTypes() {
+const StackVec<DebugVarPrefix, 4> &ApiSpecificConfig::getPrefixTypes() {
     return validClPrefixTypes;
 }
 } // namespace NEO
diff --git a/shared/source/helpers/api_specific_config.h b/shared/source/helpers/api_specific_config.h
index 7e951f1b97..4fb1465efc 100644
--- a/shared/source/helpers/api_specific_config.h
+++ b/shared/source/helpers/api_specific_config.h
@@ -7,6 +7,7 @@
 
 #pragma once
 #include "shared/source/debug_settings/debug_settings_manager.h"
+#include "shared/source/utilities/stackvec.h"
 
 #include <cstdint>
 #include <string>
@@ -27,8 +28,8 @@ struct ApiSpecificConfig {
     static uint64_t getReducedMaxAllocSize(uint64_t maxAllocSize);
     static const char *getRegistryPath();
     static void initPrefixes();
-    static const std::vector<const char *> &getPrefixStrings();
-    static const std::vector<DebugVarPrefix> &getPrefixTypes();
+    static const StackVec<const char *, 4> &getPrefixStrings();
+    static const StackVec<DebugVarPrefix, 4> &getPrefixTypes();
     static std::string getAubPrefixForSpecificApi() {
         return (getName() + "_");
     }
diff --git a/shared/source/os_interface/debug_env_reader.cpp b/shared/source/os_interface/debug_env_reader.cpp
index dcd74fd450..33e73880c6 100644
--- a/shared/source/os_interface/debug_env_reader.cpp
+++ b/shared/source/os_interface/debug_env_reader.cpp
@@ -38,8 +38,8 @@ int64_t EnvironmentVariableReader::getSetting(const char *settingName, int64_t d
     int64_t value = defaultValue;
     char *envValue;
 
-    const std::vector<const char *> prefixString = ApiSpecificConfig::getPrefixStrings();
-    const std::vector<NEO::DebugVarPrefix> prefixType = ApiSpecificConfig::getPrefixTypes();
+    auto prefixString = ApiSpecificConfig::getPrefixStrings();
+    auto prefixType = ApiSpecificConfig::getPrefixTypes();
     uint32_t i = 0;
 
     for (const auto &prefix : prefixString) {
@@ -73,8 +73,8 @@ std::string EnvironmentVariableReader::getSetting(const char *settingName, const
     std::string keyValue;
     keyValue.assign(value);
 
-    const std::vector<const char *> prefixString = ApiSpecificConfig::getPrefixStrings();
-    const std::vector<DebugVarPrefix> prefixType = ApiSpecificConfig::getPrefixTypes();
+    auto prefixString = ApiSpecificConfig::getPrefixStrings();
+    auto prefixType = ApiSpecificConfig::getPrefixTypes();
 
     uint32_t i = 0;
     for (const auto &prefix : prefixString) {
diff --git a/shared/source/os_interface/windows/debug_registry_reader.cpp b/shared/source/os_interface/windows/debug_registry_reader.cpp
index b1e3dea480..2281bef5b1 100644
--- a/shared/source/os_interface/windows/debug_registry_reader.cpp
+++ b/shared/source/os_interface/windows/debug_registry_reader.cpp
@@ -92,8 +92,8 @@ int64_t RegistryReader::getSetting(const char *settingName, int64_t defaultValue
     if (!(getSettingIntCommon(settingName, value))) {
         char *envValue;
 
-        const std::vector<const char *> prefixString = ApiSpecificConfig::getPrefixStrings();
-        const std::vector<DebugVarPrefix> prefixType = ApiSpecificConfig::getPrefixTypes();
+        auto prefixString = ApiSpecificConfig::getPrefixStrings();
+        auto prefixType = ApiSpecificConfig::getPrefixTypes();
 
         uint32_t i = 0;
         for (const auto &prefix : prefixString) {
@@ -190,8 +190,8 @@ std::string RegistryReader::getSetting(const char *settingName, const std::strin
     if (!(getSettingStringCommon(settingName, keyValue))) {
         char *envValue;
 
-        const std::vector<const char *> prefixString = ApiSpecificConfig::getPrefixStrings();
-        const std::vector<DebugVarPrefix> prefixType = ApiSpecificConfig::getPrefixTypes();
+        auto prefixString = ApiSpecificConfig::getPrefixStrings();
+        auto prefixType = ApiSpecificConfig::getPrefixTypes();
 
         uint32_t i = 0;
         for (const auto &prefix : prefixString) {
diff --git a/shared/source/utilities/debug_file_reader.cpp b/shared/source/utilities/debug_file_reader.cpp
index 6437bbeed5..1c9580508d 100644
--- a/shared/source/utilities/debug_file_reader.cpp
+++ b/shared/source/utilities/debug_file_reader.cpp
@@ -42,8 +42,8 @@ int32_t SettingsFileReader::getSetting(const char *settingName, int32_t defaultV
 int64_t SettingsFileReader::getSetting(const char *settingName, int64_t defaultValue, DebugVarPrefix &type) {
     int64_t value = defaultValue;
 
-    const std::vector<const char *> prefixString = ApiSpecificConfig::getPrefixStrings();
-    const std::vector<DebugVarPrefix> prefixType = ApiSpecificConfig::getPrefixTypes();
+    auto prefixString = ApiSpecificConfig::getPrefixStrings();
+    auto prefixType = ApiSpecificConfig::getPrefixTypes();
 
     uint32_t i = 0;
     for (const auto &prefix : prefixString) {
@@ -83,8 +83,8 @@ bool SettingsFileReader::getSetting(const char *settingName, bool defaultValue)
 std::string SettingsFileReader::getSetting(const char *settingName, const std::string &value, DebugVarPrefix &type) {
     std::string returnValue = value;
 
-    const std::vector<const char *> prefixString = ApiSpecificConfig::getPrefixStrings();
-    const std::vector<DebugVarPrefix> prefixType = ApiSpecificConfig::getPrefixTypes();
+    auto prefixString = ApiSpecificConfig::getPrefixStrings();
+    auto prefixType = ApiSpecificConfig::getPrefixTypes();
 
     uint32_t i = 0;
     for (const auto &prefix : prefixString) {
diff --git a/shared/test/unit_test/ult_specific_config.cpp b/shared/test/unit_test/ult_specific_config.cpp
index 0098f60867..c6a945d6a7 100644
--- a/shared/test/unit_test/ult_specific_config.cpp
+++ b/shared/test/unit_test/ult_specific_config.cpp
@@ -25,10 +25,10 @@ bool apiSupport = false;
 } // namespace ImplicitScaling
 
 const char *neoMockSettingsFileName = "neo_mock.config";
-std::vector<const char *> validUltL0Prefixes = {"NEO_L0_", "NEO_", ""};
-std::vector<NEO::DebugVarPrefix> validUltL0PrefixTypes = {DebugVarPrefix::Neo_L0, DebugVarPrefix::Neo, DebugVarPrefix::None};
-std::vector<const char *> validUltOclPrefixes = {"NEO_OCL_", "NEO_", ""};
-std::vector<NEO::DebugVarPrefix> validUltOclPrefixTypes = {DebugVarPrefix::Neo_Ocl, DebugVarPrefix::Neo, DebugVarPrefix::None};
+StackVec<const char *, 4> validUltL0Prefixes = {"NEO_L0_", "NEO_", ""};
+StackVec<NEO::DebugVarPrefix, 4> validUltL0PrefixTypes = {DebugVarPrefix::Neo_L0, DebugVarPrefix::Neo, DebugVarPrefix::None};
+StackVec<const char *, 4> validUltOclPrefixes = {"NEO_OCL_", "NEO_", ""};
+StackVec<NEO::DebugVarPrefix, 4> validUltOclPrefixTypes = {DebugVarPrefix::Neo_Ocl, DebugVarPrefix::Neo, DebugVarPrefix::None};
 
 bool CompressionSelector::preferCompressedAllocation(const AllocationProperties &properties) {
     return false;
@@ -88,7 +88,7 @@ const char *ApiSpecificConfig::getRegistryPath() {
 void ApiSpecificConfig::initPrefixes() {
 }
 
-const std::vector<const char *> &ApiSpecificConfig::getPrefixStrings() {
+const StackVec<const char *, 4> &ApiSpecificConfig::getPrefixStrings() {
     if (apiTypeForUlts == ApiSpecificConfig::L0) {
         return validUltL0Prefixes;
     } else {
@@ -96,7 +96,7 @@ const std::vector<const char *> &ApiSpecificConfig::getPrefixStrings() {
     }
 }
 
-const std::vector<DebugVarPrefix> &ApiSpecificConfig::getPrefixTypes() {
+const StackVec<DebugVarPrefix, 4> &ApiSpecificConfig::getPrefixTypes() {
     if (apiTypeForUlts == ApiSpecificConfig::L0) {
         return validUltL0PrefixTypes;
     } else {