optinal load_avg to fix

user/sysinfo.c

@@ -0,0 +1,21 @@
+#include "kernel/param.h"
+#include "kernel/types.h"
+#include "kernel/stat.h"
+#include "user/user.h"
+
+int main() {
+  struct sysinfo info;
+
+  if (sysinfo(&info) < 0) {
+    printf("sysinfo: failed to retrieve system information\n");
+    exit(1);
+  }
+
+  printf("System Information:\n");
+  printf("  Free Memory: %d bytes\n", info.freemem);
+  printf("  Number of Processes: %d\n", info.nproc);
+  printf("  Unused Process Slots: %d\n", info.unused_proc_num);
+  printf("  Load Average: %d\n", info.load_avg);
+
+  exit(0);
+}