diff --git a/Makefile b/Makefile
index f441bf0ba38b1..5e44a7d959499 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@ INSTALL_PATH := $(PWD)/bin
 LIBRARY_PATH := $(PWD)/lib
 PGO_PATH := $(PWD)/configs/pgo
 OS := $(shell uname -s)
-mode = Debug
+mode = Release
 
 use_disk_index = OFF
 ifdef disk_index
diff --git a/internal/core/unittest/test_chunk_cache.cpp b/internal/core/unittest/test_chunk_cache.cpp
index 9d557e0d1f55f..4be3b88ab090e 100644
--- a/internal/core/unittest/test_chunk_cache.cpp
+++ b/internal/core/unittest/test_chunk_cache.cpp
@@ -172,10 +172,16 @@ TEST_P(ChunkCacheTest, Read) {
 
     expected_sparse_size += (N + 7) / 8;
     expected_sparse_size += sizeof(int64_t) * (N + 1);
+
+    if (mmap_enabled) {
+        const uint32_t page_size = sysconf(_SC_PAGE_SIZE);
+        auto padding_size = (expected_sparse_size / page_size +
+                             (expected_sparse_size % page_size != 0)) *
+                                page_size -
+                            expected_sparse_size;
+        expected_sparse_size += padding_size;
+    }
     auto actual_sparse_size = sparse_column->DataByteSize();
-    std::cout << "actual_sparse_size: " << actual_sparse_size
-              << ", expected_sparse_size: " << expected_sparse_size
-              << std::endl;
     Assert(actual_sparse_size == expected_sparse_size);
 
     cc->Remove(dense_file_name);