in Source/TNLPriority.m [341:355]
NSTimeInterval TNLDeferrableIntervalForPriority(TNLPriority pri)
{
switch (pri) {
case TNLPriorityVeryLow:
return 60.0;
case TNLPriorityLow:
return 10.0;
case TNLPriorityNormal:
case TNLPriorityHigh:
case TNLPriorityVeryHigh:
break;
}
return 0.0;
}