On Sunday 29 October 2017 21:35:15 yang chen wrote: > Thanks for your reply, why calling the ngx_event_expire_timers is > unnecessary when ngx_process_events handler returns so quickly that the > millisecond precision is not enough to display the calling time(less than > 1ms maybe). > > ngx_process_events handler returns quickly which doesn't > mean ngx_event_process_posted return quickly, maybe it excute for 2 ms or > more
First of all, ngx_process_events() is the function that actually _waits_ and updates process time. So, there's no sense to move the calculation of delta elsewhere, since ngx_current_msec will be the same anyway. In most cases the time is spend by waiting on kernel for events, not by processing the events and executing handlers. Normally ngx_event_process_posted should not spend 2ms, otherwise that would result in less than 500 rps, which can only indicate blocking issue or overload. wbr, Valentin V. Bartenev _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
