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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_n21ghh0clcedakmd4ki8t9bvv1, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
// activity: runnable/voidfunc()/func() -> O
// function result will be held during measurement
static long measureTotalObjectSize(O activity, S desc) {
  long mem1 = memoryUsedAfterGC();
  O result = callF(activity);
  long mem2 = memoryUsedAfterGC();
  long diff = mem2-mem1;
  print("Memory used" + (nempty(desc) ? " for " + desc : "") + ": " + toK(diff) + " K");
  ret diff;
}

static long measureTotalObjectSize(O activity) {
  ret measureTotalObjectSize(activity, shorten(str(activity), 40));
}