diff --git a/Makefile b/Makefile
index ff5db2f..439956c 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ install:
 	cp -r usr.share.d/* $(DESTDIR)/usr/share
 	install -Dm755 dde-first-run $(DESTDIR)/usr/libexec/dde-first-run
 	ln -s /usr/libexec/dde-first-run $(DESTDIR)/usr/bin/dde-first-run
-	install -Dm644 sysctl.d/90-deepin.conf $(DESTDIR)/usr/lib/sysctl.d/deepin.conf
+	install -Dm644 sysctl.d/00-deepin.conf $(DESTDIR)/usr/lib/sysctl.d/00-deepin.conf
 	install -Dm644 udev.rules.d/99-deepin.rules $(DESTDIR)/lib/udev/rules.d/99-deepin.rules
 	for i in `ls $(DESTDIR)/usr/share/fontconfig/conf.avail/ | grep .conf$$`;do \
 		ln -sf /usr/share/fontconfig/conf.avail/$${i} $(DESTDIR)/etc/fonts/conf.d/$${i}; \
diff --git a/sysctl.d/00-deepin.conf b/sysctl.d/00-deepin.conf
new file mode 100644
index 0000000..bece203
--- /dev/null
+++ b/sysctl.d/00-deepin.conf
@@ -0,0 +1,2 @@
+# VM Tuning
+vm.max_map_count=262144
diff --git a/sysctl.d/90-deepin.conf b/sysctl.d/90-deepin.conf
deleted file mode 100644
index 025826f..0000000
--- a/sysctl.d/90-deepin.conf
+++ /dev/null
@@ -1,30 +0,0 @@
-# net.core.busy_read=50
-# net.core.busy_poll=100
-net.core.dev_weight=512
-net.core.rmem_max=2097152
-net.core.rmem_default=2097152
-net.core.wmem_max=2097152
-net.core.message_burst=50
-net.core.message_cost=1
-net.core.netdev_budget=1024
-net.core.netdev_max_backlog=8000
-net.core.netdev_tstamp_prequeue=1
-net.core.optmem_max=524288
-net.core.somaxconn=512
-net.ipv4.tcp_fin_timeout=40
-net.ipv4.tcp_invalid_ratelimit=2000
-net.ipv4.tcp_max_syn_backlog=2048
-net.ipv4.tcp_tw_recycle=1
-net.ipv4.tcp_tw_reuse=1
-net.ipv4.tcp_thin_linear_timeouts=1
-net.ipv4.tcp_thin_dupack=1
-net.ipv4.tcp_limit_output_bytes=1048576
-net.ipv4.icmp_errors_use_inbound_ifaddr=1
-vm.swappiness=10
-vm.vfs_cache_pressure=40
-kernel.sched_latency_ns=3000000
-kernel.sched_migration_cost_ns=250000
-kernel.sched_min_granularity_ns=300000
-kernel.sched_wakeup_granularity_ns=500000
-kernel.sched_cfs_bandwidth_slice_us=3000
-kernel.sched_autogroup_enabled=1