diff --git a/arch/arm64/configs/deepin_arm64_desktop_defconfig b/arch/arm64/configs/deepin_arm64_desktop_defconfig
index 8b336ff14b9e..0378938feba6 100644
--- a/arch/arm64/configs/deepin_arm64_desktop_defconfig
+++ b/arch/arm64/configs/deepin_arm64_desktop_defconfig
@@ -97,7 +97,7 @@ CONFIG_ARCH_VISCONTI=y
 CONFIG_ARCH_XGENE=y
 CONFIG_ARCH_ZYNQMP=y
 CONFIG_ARM64_VA_BITS_48=y
-CONFIG_NR_CPUS=4096
+CONFIG_NR_CPUS=2048
 CONFIG_NUMA=y
 CONFIG_HZ_1000=y
 CONFIG_XEN=y