From e2536c879ee7a980bab32c9d4dfb1cf6b59ecc6b Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 14 Oct 2024 23:09:39 +0200
Subject: [PATCH] Mon 14 Oct 23:09:15 CEST 2024

---
 user/test/statworkload.c | 55 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 user/test/statworkload.c

diff --git a/user/test/statworkload.c b/user/test/statworkload.c
new file mode 100644
index 0000000..9b87f74
--- /dev/null
+++ b/user/test/statworkload.c
@@ -0,0 +1,55 @@
+#include "library/malloc.h"
+#include "library/syscalls.h"
+#include "library/string.h"
+#include "library/user-io.h"
+
+/*
+  Continuously read files at random intervals to generate statistics
+*/
+
+int filereads() {
+  int fd[8];
+
+  char buffer[4096];
+  int i, j;
+  int n, count = 0, mod = 7;
+
+  while (1) {
+    for (i = 0; i < (count + mod) % mod; i++) {
+      fd[0] = syscall_open_file("bin/exectest.exe", 0, 0);
+      fd[1] = syscall_open_file("bin/long.exe", 0, 0);
+      fd[2] = syscall_open_file("bin/saver.exe", 0, 0);
+      for (j = 0; j < 3; j++) {
+        while((n = syscall_object_read(fd[j], buffer, 1024)) > 0) {
+        }
+      }
+
+      syscall_object_close(fd[0]);
+      syscall_object_close(fd[1]);
+      syscall_object_close(fd[2]);
+    }
+    syscall_process_sleep(3000);
+    count++;
+  }
+}
+
+int main(int argc, char const *argv[]) {
+
+  if (argc < 2 || !strcmp(argv[1], "bcache")) {
+    filereads();
+  }
+  else if (!strcmp(argv[1], "process")) {
+    filereads();
+  }
+  else if (!strcmp(argv[1], "device_driver")) {
+    filereads();
+  }
+  else if (!strcmp(argv[1], "system")) {
+    filereads();
+  }
+  else {
+    filereads();
+  }
+
+  return 0;
+}