--- a/src/mpid/ch3/channels/common/include/mv2_clock.h	2018-07-24 22:30:00.000000000 +0800
+++ b/src/mpid/ch3/channels/common/include/mv2_clock.h	2022-03-03 14:19:52.430980863 +0800
@@ -92,7 +92,14 @@
 
        return ret;
 }
-
+#elif defined(__riscv)
+typedef unsigned long cycles_t;
+static inline cycles_t get_cycles()
+{
+    unsigned long  clk;
+    asm volatile("rdcycle %0" : "=r" (clk));
+    return clk;
+}
 #else
 #warning get_cycles not implemented for this architecture: attempt asm/timex.h
 #include <asm/timex.h>