diff --git a/src/server/slavefuncs.c b/src/server/slavefuncs.c
--- a/src/server/slavefuncs.c
+++ b/src/server/slavefuncs.c
@@ -39,6 +39,7 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 
+#include <time.h>
 
 /**
    Sends the server a single request (see protocol.h)
@@ -302,7 +303,7 @@ int exec_blender(char *input, char *outp
   _distren_asprintf(&frame_str, "%i", frame);
 
   char *command = "blender"; // @TODO: We currently expect this to be in PATH
-  char *cmd[] = { command, "-b", input, "-o", output, "-f", frame_str, (char *)NULL }; // arguments for blender
+  char *cmd[] = { command, "-b", input, "-o", output, "-f", frame_str, "-t", "0", (char *)NULL }; // arguments for blender
 
   fprintf(stderr,"Preparing to execute command: %s -b %s -o %s -f %s\n", command, input, output, frame_str);
 
@@ -387,11 +388,8 @@ int downloadTar(char *url, char *destina
         return 1; // Eventually make a retry loop
       }
     }
-  else{
-    fprintf(stderr, "Tar already exists! Download cancelled.\n");
-    return 2;
-  }
-
+  fprintf(stderr, "Tar already exists! Download cancelled.\n");
+  return 2;
 }
 
 
@@ -709,6 +707,7 @@ void _web_resetframe(int slavekey, char 
 }
 
 void _web_startframe(int slavekey, char *slavepass, int jobnum, int framenum){
+  fprintf(stderr,"Marking frame %d started on server... ",framenum);
   char *url;
   _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=startframe&slavekey=%d&slavepass=%s&jobnum=%d&framenum=%d", slavekey, slavepass, jobnum, framenum);
   struct _web_memorystruct data = _web_getrequest(url);
@@ -742,7 +741,81 @@ int _web_getwork(int slavekey, char *sla
   }
 }
 
-void _web_setrenderpower(int slavekey, char *slavepass, int jobnum, int framenum){
+void _web_setrenderpower(int slavekey, char *slavepass, int renderpower){
+  fprintf(stderr,"Setting render power on server... ");
+  char *url;
+  _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=setrenderpower&slavekey=%d&slavepass=%s&renderpower=%d", slavekey, slavepass, renderpower);
+  struct _web_memorystruct data = _web_getrequest(url);
+  free(url);
+
+  fprintf(stderr,"%s\n", data.memory);
+  if(data.memory)
+    free(data.memory);
+}
+
+int slaveBenchmark(char *datadir, int *benchmarkTime, int *renderPower){
+  int ret;
+  int frameToRender = 1;
+  char *frame_str;
+  _distren_asprintf(&frame_str, "%d", frameToRender); // Render frame 1
+
+  char *output;
+  _distren_asprintf(&output, "%s/benchmark#.jpg", datadir); // Where to save benchmark output
+
+  char *realOutput;
+  _distren_asprintf(&realOutput, "%s/benchmark%d.jpg", datadir, frameToRender); // Where to save benchmark output
 
 
+  char *input;
+  _distren_asprintf(&input, "%s/benchmark.blend", datadir); // Input file
+
+  fprintf(stderr,"Downloading benchmark data...\n");
+  curlget("http://data.distren.org/benchmark.blend", input); // Download to input file location
+
+  char *command = "blender"; // @TODO: We currently expect this to be in PATH
+  char *cmd[] = { command, "-b", input, "-o", output, "-f", frame_str, "-t", "0", (char *)NULL }; // arguments for blender
+
+  // fprintf(stderr,"Preparing to execute command: %s -b %s -o %s -f %s\n", command, input, output, frame_str);
+  fprintf(stderr,"Running benchmark...\n");
+
+  long startTime;
+  long endTime;
+
+  time(&startTime);
+
+  char buf[10];
+  struct execio *testrem;
+  size_t readlen;
+
+  ret = execio_open(&testrem, command, cmd);
+  buf[20] = '\0';
+  while(!execio_read(testrem, buf, 20, &readlen))
+    {
+      if(readlen > 20) {
+        fprintf(stderr, "Something is terribly wrong!\n");
+       }
+       buf[readlen] = '\0';
+       fprintf(stderr, "read \"%s\"\n", buf);
+    }
+  execio_close(testrem);
+
+  time(&endTime);
+
+  struct stat buffer;
+  int ostatus = stat(realOutput, &buffer);
+  if(ostatus == -1){
+    ret = 1; // Return error if output wasn't generated
+  }
+  else
+    remove(output);
+
+  free(frame_str);
+  free(input);
+  free(output);
+
+  *benchmarkTime = abs(difftime(startTime,endTime));
+  float tmp = *benchmarkTime;
+  tmp = (1/tmp) * 50000;
+  *renderPower = (int)tmp;
+  return ret;
 }