if (ev->timer_set) {
/*
- * Use the previous timer value if a difference between them is less
- * then NGX_TIMER_LAZY_DELAY milliseconds. It allows to minimize
- * the rbtree operations for the fast connections.
+ * Use a previous timer value if difference between it and a new
+ * value is less than NGX_TIMER_LAZY_DELAY milliseconds: this allows
+ * to minimize the rbtree operations for fast connections.
*/
diff = (ngx_msec_int_t) (key - ev->timer.key);