diff --git a/config.xml b/config.xml
index 3c74fae9ef8a65d8f195a518de34766d92f40c20..28e7676afe4b0d46bf384f6536baf897d80cb443 100644
--- a/config.xml
+++ b/config.xml
@@ -15,4 +15,6 @@ ISL_DIR="isl-0.16.1"
 GLIBC="glibc"
 GLIBC_DIR="glibc-2.34"
 KERNEL_HEADERS="kernel_headers"
+KERNEL_HEADERS_64="kernel_headers_64"
 LINUX_KERNEL="kernel"
+LINUX_KERNEL_64="kernel-64"
diff --git a/download.sh b/download.sh
index 92292bdd5d8e2e779bfca9bc2e39f161190b8b91..b492ff4fb087ce12494bf94c10fdd5fe6eddb6be 100755
--- a/download.sh
+++ b/download.sh
@@ -56,4 +56,5 @@ do_patch $MPC
 echo "Download $ISL" && git clone -b openEuler-22.03-LTS https://gitee.com/src-openeuler/isl.git 
 do_patch $ISL
 
-echo "Download $KERNEL" && git clone -b  5.10.0-60.16.0 https://gitee.com/openeuler/kernel.git --depth 1
+echo "Download $LINUX_KERNEL" && git clone -b  5.10.0-60.16.0 https://gitee.com/openeuler/kernel.git --depth 1
+cp -a $LINUX_KERNEL $LINUX_KERNEL_64
diff --git a/gcc-cross.spec b/gcc-cross.spec
index 378f524fe2cad486e371d85df59b6ccb39ac49a2..68641892cc28fac1b75d37f0ef5e232e8396bb6a 100644
--- a/gcc-cross.spec
+++ b/gcc-cross.spec
@@ -28,8 +28,9 @@ if [ "$files" != 0 ]; then
 	ls *.tar | xargs -n1 tar xvf
 fi
 bash download.sh
-bash build.sh openeuler_gcc_arm64le
+bash build.sh openeuler_gcc_arm64le &
 bash build.sh openeuler_gcc_arm32le
+wait
 
 %install
 mkdir -p %{buildroot}/tmp
@@ -41,6 +42,12 @@ cp %{_builddir}/output/openeuler_gcc_arm32le/openeuler_gcc_arm32le.tar.gz %{buil
 %attr(755, root, root) /tmp/openeuler_gcc_arm32le.tar.gz
 
 %changelog
+* Tue Nov 8 2022 dingguangya <dingguangya1@huawei.com>
+- Type:Fix
+- ID:NA
+- SUG:NA
+- DESC: Increase parallel compilation capability
+
 * Wed Mar 23 2022 dingguangya <dingguangya1@huawei.com>
 - Type:Init
 - ID:NA
diff --git a/openeuler_gcc_arm64le/openeuler_gcc_aarch64_linux_release.sh b/openeuler_gcc_arm64le/openeuler_gcc_aarch64_linux_release.sh
index dafb8033763f700dad03c54641b92ba0c69b05f1..9d78fa2e2c87206fb6a227c65027cee634ef3b81 100755
--- a/openeuler_gcc_arm64le/openeuler_gcc_aarch64_linux_release.sh
+++ b/openeuler_gcc_arm64le/openeuler_gcc_aarch64_linux_release.sh
@@ -62,7 +62,7 @@ echo "Building binutils..." && pushd $ROOT_TAR_DIR/obj/build-binutils
 LDFLAGS="${SECURE_LDFLAGS}" CFLAGS="${SECURE_CFLAGS}" CXXFLAGS="${SECURE_CXXFLAGS}" CFLAGS_FOR_TARGET="${SECURE_CFLAGS_FOR_TARGET}" CXXFLAGS_FOR_TARGET="${SECURE_CXXFLAGS_FOR_TARGET}"  $ROOT_TAR_SRC/$BINUTILS/$BINUTILS_DIR/configure --build=$BUILD --target=$TARGET --prefix=$PREFIX --host=$HOST --with-pkgversion="${COMPILER_INFO}" --with-sysroot=$SYSROOT --enable-plugins --enable-ld=yes --disable-gdb --libdir=$PREFIX/lib64
 make -j 32 && make install prefix=$PREFIX exec_prefix=$PREFIX libdir=$PREFIX/lib64 && popd
 
-echo "Installing kernel headers..." && pushd $ROOT_TAR_SRC/$KERNEL_HEADERS/
+echo "Installing kernel headers..." && pushd $ROOT_TAR_SRC/$KERNEL_HEADERS_64/
 mkdir -p $SYSROOT/usr/ && cp -r include $SYSROOT/usr/
 mkdir -p $SYSROOT/usr/include/bits $SYSROOT/usr/include/gnu && popd
 
diff --git a/openeuler_gcc_arm64le/pre_construction.sh b/openeuler_gcc_arm64le/pre_construction.sh
index e28c6ce21d76a5df1316e39b58c0daea56503cb9..a96076643342043d246fee53c08fd88beee42180 100755
--- a/openeuler_gcc_arm64le/pre_construction.sh
+++ b/openeuler_gcc_arm64le/pre_construction.sh
@@ -20,6 +20,6 @@ clean
 chmod 777 $ROOT_BUILD_SRC -R
 
 # Extract kernel header files
-cd $ROOT_BUILD_SRC/$LINUX_KERNEL
-make headers_install ARCH=arm64 INSTALL_HDR_PATH=$ROOT_BUILD_SRC/$KERNEL_HEADERS
+cd $ROOT_BUILD_SRC/$LINUX_KERNEL_64
+make headers_install ARCH=arm64 INSTALL_HDR_PATH=$ROOT_BUILD_SRC/$KERNEL_HEADERS_64
 cd -