diff --git a/easy-fs/src/layout.rs b/easy-fs/src/layout.rs
index 83da4cbb..7d14de46 100644
--- a/easy-fs/src/layout.rs
+++ b/easy-fs/src/layout.rs
@@ -8,7 +8,7 @@ use alloc::sync::Arc;
 use alloc::vec::Vec;
 
 const EFS_MAGIC: u32 = 0x3b800001;
-const INODE_DIRECT_COUNT: usize = 60;
+const INODE_DIRECT_COUNT: usize = 28;
 const NAME_LENGTH_LIMIT: usize = 27;
 const INODE_INDIRECT1_COUNT: usize = BLOCK_SZ / 4;
 const INODE_INDIRECT2_COUNT: usize = INODE_INDIRECT1_COUNT * INODE_INDIRECT1_COUNT;
diff --git a/user/src/lib.rs b/user/src/lib.rs
index f711ee66..22ad9d49 100644
--- a/user/src/lib.rs
+++ b/user/src/lib.rs
@@ -17,7 +17,7 @@ use syscall::*;
 use buddy_system_allocator::LockedHeap;
 use alloc::vec::Vec;
 
-const USER_HEAP_SIZE: usize = 16384;
+const USER_HEAP_SIZE: usize = 32768;
 
 static mut HEAP_SPACE: [u8; USER_HEAP_SIZE] = [0; USER_HEAP_SIZE];