diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ecdaee7..f5bd7b07 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -381,6 +381,17 @@ foreach(_m ${PIP_SRC_MODULES})
 endforeach()
 set_target_properties(pip PROPERTIES DEFINE_SYMBOL pip_EXPORTS)
 
+# Override containers minimum bytes allocation
+if(NOT "x${PIP_CONTAINERS_MIN_ALLOC}" STREQUAL "x")
+	target_compile_definitions(pip PRIVATE "-DPIP_CONTAINERS_MIN_ALLOC=${PIP_CONTAINERS_MIN_ALLOC}")
+	message(STATUS "Attention: Override PIP_CONTAINERS_MIN_ALLOC = ${PIP_CONTAINERS_MIN_ALLOC}")
+endif()
+# Override containers maximum bytes for power of two expansion, may be bytes or X_KiB, or X_MiB
+if(NOT "x${PIP_CONTAINERS_MAX_POT_ALLOC}" STREQUAL "x")
+	target_compile_definitions(pip PRIVATE "-DPIP_CONTAINERS_MAX_POT_ALLOC=${PIP_CONTAINERS_MAX_POT_ALLOC}")
+	message(STATUS "Attention: Override PIP_CONTAINERS_MAX_POT_ALLOC = ${PIP_CONTAINERS_MAX_POT_ALLOC}")
+endif()
+
 
 if (NOT CROSSTOOLS)
 	if (NOT PIP_FREERTOS)
diff --git a/libs/main/containers/picontainers.cpp b/libs/main/containers/picontainers.cpp
index f75eed09..475e3514 100644
--- a/libs/main/containers/picontainers.cpp
+++ b/libs/main/containers/picontainers.cpp
@@ -22,8 +22,21 @@
 #include "piliterals_bytes.h"
 
 
-const size_t minAlloc    = 64;
-const size_t maxPoTAlloc = 64_MiB;
+#if defined(PIP_CONTAINERS_MIN_ALLOC)
+#  define ACTUAL_MIN_ALLOC PIP_CONTAINERS_MIN_ALLOC
+#else
+#  define ACTUAL_MIN_ALLOC 64
+#endif
+
+#if defined(PIP_CONTAINERS_MAX_POT_ALLOC)
+#  define ACTUAL_MAX_POT_ALLOC PIP_CONTAINERS_MAX_POT_ALLOC
+#else
+#  define ACTUAL_MAX_POT_ALLOC 64_MiB
+#endif
+
+
+const size_t minAlloc    = ACTUAL_MIN_ALLOC;
+const size_t maxPoTAlloc = ACTUAL_MAX_POT_ALLOC;
 
 
 size_t _PIContainerConstantsBase::calcMinCountPoT(size_t szof) {
diff --git a/libs/main/containers/picontainers.h b/libs/main/containers/picontainers.h
index 98fff3dc..2434f818 100644
--- a/libs/main/containers/picontainers.h
+++ b/libs/main/containers/picontainers.h
@@ -89,6 +89,26 @@ public:
 		static const size_t ret = _PIContainerConstantsBase::calcStepAfterPoT(sizeof(T));
 		return ret;
 	}
+
+	static size_t calcNewSize(size_t old_size, size_t new_size) {
+		if (new_size == 0) return 0;
+		if (new_size < maxCountForPoT()) {
+			if (old_size * 2 >= new_size && old_size < new_size) {
+				return old_size * 2;
+			}
+			ssize_t t = minCountPoT();
+			new_size -= 1;
+			while (new_size >> t)
+				++t;
+			return (1 << t);
+		} else {
+			size_t ret = old_size;
+			while (ret < new_size)
+				ret += stepAfterPoT();
+			return ret;
+		}
+		return 0;
+	}
 };
 
 
diff --git a/libs/main/containers/pideque.h b/libs/main/containers/pideque.h
index 83fd1526..0e0ba6ff 100644
--- a/libs/main/containers/pideque.h
+++ b/libs/main/containers/pideque.h
@@ -2575,27 +2575,6 @@ private:
 		pid_data  = nullptr;
 	}
 
-	inline size_t asize(ssize_t ss) {
-		if (ss <= 0) return 0;
-		size_t s = ss;
-		if (s < _PIContainerConstants<T>::maxCountForPoT()) {
-			if (pid_rsize * 2 >= s && pid_rsize < s) {
-				return pid_rsize * 2;
-			}
-			ssize_t t = _PIContainerConstants<T>::minCountPoT();
-			s -= 1;
-			while (s >> t)
-				++t;
-			return (1 << t);
-		} else {
-			size_t ret = pid_rsize;
-			while (ret < s)
-				ret += _PIContainerConstants<T>::stepAfterPoT();
-			return ret;
-		}
-		return 0;
-	}
-
 	template<typename T1 = T, typename std::enable_if<!std::is_trivially_copyable<T1>::value, int>::type = 0>
 	inline void newT(T * dst, const T * src, size_t s) {
 		PIINTROSPECTION_CONTAINER_USED(T, s)
@@ -2690,35 +2669,38 @@ private:
 			if (pid_start > 0) checkMove();
 			return;
 		}
-		pid_size        = new_size;
-		const size_t as = asize(pid_start + new_size);
-		if (as != pid_rsize) {
+		pid_size               = new_size;
+		const size_t new_rsize = _PIContainerConstants<T>::calcNewSize(pid_rsize, pid_start + new_size);
+		if (new_rsize != pid_rsize) {
 			PIINTROSPECTION_CONTAINER_ALLOC(T, (as - pid_rsize))
-			T * p_d = reinterpret_cast<T *>(realloc(reinterpret_cast<void *>(pid_data), as * sizeof(T)));
+			T * new_data = reinterpret_cast<T *>(realloc(reinterpret_cast<void *>(pid_data), new_rsize * sizeof(T)));
 #ifndef NDEBUG
-			if (!p_d) {
+			if (!new_data) {
 				fprintf(stderr, "error with PIDeque<%s>::alloc\n", __PIP_TYPENAME__(T));
 			}
 #endif
 			assert(p_d);
-			pid_data  = p_d;
-			pid_rsize = as;
+			pid_data  = new_data;
+			pid_rsize = new_rsize;
 		}
 	}
 
 	inline void alloc_backward(size_t new_size, ssize_t start_offset = 0) {
-		const size_t as = ssize_t(pid_start) + start_offset < 0 ? asize(pid_rsize - start_offset) : pid_rsize;
-		if (as > pid_rsize) {
-			T * td          = reinterpret_cast<T *>(malloc(as * sizeof(T)));
-			const size_t ns = pid_start + as - pid_rsize;
+		const size_t new_rsize =
+			ssize_t(pid_start) + start_offset < 0 ? _PIContainerConstants<T>::calcNewSize(pid_rsize, pid_rsize - start_offset) : pid_rsize;
+		if (new_rsize > pid_rsize) {
+			T * tmp_data           = reinterpret_cast<T *>(malloc(new_rsize * sizeof(T)));
+			const size_t new_start = pid_start + new_rsize - pid_rsize;
 			PIINTROSPECTION_CONTAINER_ALLOC(T, (as - pid_rsize))
-			if (pid_rsize > 0 && pid_data != 0) {
-				memcpy(reinterpret_cast<void *>(td + ns), reinterpret_cast<const void *>(pid_data + pid_start), pid_size * sizeof(T));
+			if (pid_rsize > 0 && pid_data) {
+				memcpy(reinterpret_cast<void *>(tmp_data + new_start),
+					   reinterpret_cast<const void *>(pid_data + pid_start),
+					   pid_size * sizeof(T));
 				dealloc();
 			}
-			pid_data  = td;
-			pid_rsize = as;
-			pid_start = ns;
+			pid_data  = tmp_data;
+			pid_rsize = new_rsize;
+			pid_start = new_start;
 		}
 		pid_start += start_offset;
 		pid_size = new_size;
diff --git a/libs/main/containers/pivector.h b/libs/main/containers/pivector.h
index 1e1c7d13..c480988c 100644
--- a/libs/main/containers/pivector.h
+++ b/libs/main/containers/pivector.h
@@ -2459,26 +2459,6 @@ private:
 		piv_data  = nullptr;
 	}
 
-	inline size_t asize(size_t s) {
-		if (s == 0) return 0;
-		if (s < _PIContainerConstants<T>::maxCountForPoT()) {
-			if (piv_rsize * 2 >= s && piv_rsize < s) {
-				return piv_rsize * 2;
-			}
-			ssize_t t = _PIContainerConstants<T>::minCountPoT();
-			s -= 1;
-			while (s >> t)
-				++t;
-			return (1 << t);
-		} else {
-			size_t ret = piv_rsize;
-			while (ret < s)
-				ret += _PIContainerConstants<T>::stepAfterPoT();
-			return ret;
-		}
-		return 0;
-	}
-
 	template<typename T1 = T, typename std::enable_if<!std::is_trivially_copyable<T1>::value, int>::type = 0>
 	inline void newT(T * dst, const T * src, size_t s) {
 		PIINTROSPECTION_CONTAINER_USED(T, s)
@@ -2566,19 +2546,19 @@ private:
 			piv_size = new_size;
 			return;
 		}
-		piv_size        = new_size;
-		const size_t as = asize(new_size);
-		if (as == piv_rsize) return;
+		piv_size               = new_size;
+		const size_t new_rsize = _PIContainerConstants<T>::calcNewSize(piv_rsize, new_size);
+		if (new_rsize == piv_rsize) return;
 		PIINTROSPECTION_CONTAINER_ALLOC(T, (as - piv_rsize))
-		T * p_d = reinterpret_cast<T *>(realloc(reinterpret_cast<void *>(piv_data), as * sizeof(T)));
+		T * new_data = reinterpret_cast<T *>(realloc(reinterpret_cast<void *>(piv_data), new_rsize * sizeof(T)));
 #ifndef NDEBUG
-		if (!p_d) {
+		if (!new_data) {
 			fprintf(stderr, "error with PIVector<%s>::alloc\n", __PIP_TYPENAME__(T));
 		}
 #endif
 		assert(p_d);
-		piv_data  = p_d;
-		piv_rsize = as;
+		piv_data  = new_data;
+		piv_rsize = new_rsize;
 	}
 
 	T * piv_data     = nullptr;