diff --git a/src/os/src/darwin/dwSysInfo.c b/src/os/src/darwin/dwSysInfo.c
index 10e0acc130..54c6fb1d32 100644
--- a/src/os/src/darwin/dwSysInfo.c
+++ b/src/os/src/darwin/dwSysInfo.c
@@ -164,6 +164,10 @@ void taosKillSystem() {
   exit(0);
 }
 
+int32_t taosGetCpuCores() {
+  return sysconf(_SC_NPROCESSORS_ONLN);
+}
+
 void taosGetSystemInfo() {
   // taosGetProcInfos();
 
@@ -185,12 +189,25 @@ void taosGetSystemInfo() {
   taosGetSystemLocale();
 }
 
+bool taosReadProcIO(int64_t *rchars, int64_t *wchars) {
+  if (rchars) *rchars = 0;
+  if (wchars) *wchars = 0;
+  return true;
+}
+
 bool taosGetProcIO(float *readKB, float *writeKB) {
   *readKB = 0;
   *writeKB = 0;
   return true;
 }
 
+bool taosGetCardInfo(int64_t *bytes, int64_t *rbytes, int64_t *tbytes) {
+  if (bytes) *bytes = 0;
+  if (rbytes) *rbytes = 0;
+  if (tbytes) *tbytes = 0;
+  return true;
+}
+
 bool taosGetBandSpeed(float *bandSpeedKb) {
   *bandSpeedKb = 0;
   return true;