# Eventports **URL:** \ **Category:** NGINX\ **Created:** [August 23, 2008, 7:40am UTC](https://www.ruby-forum.com/t/eventports/146631 "2008-08-23T07:40:37Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![mike](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/58f4c7/32.png) [@mike](https://www.ruby-forum.com/u/mike)\ **Post date:** [August 23, 2008, 7:40am UTC](https://www.ruby-forum.com/t/eventports/146631/1 "2008-08-23T07:40:37Z")
Someone on #nginx blogged about this… [http://letsgetdugg.com/view/Nginx\_hidden\_performance\_option](http://letsgetdugg.com/view/Nginx_hidden_performance_option) Wondering what OSes would benefit from this? and at what point would it help to turn on, or should it be on always, or should it never be on unless you plan on doing X connections per second? Thanks ---
**Author:** ![mike](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/58f4c7/32.png) [@mike](https://www.ruby-forum.com/u/mike)\ **Post date:** [August 23, 2008, 8:04am UTC](https://www.ruby-forum.com/t/eventports/146631/2 "2008-08-23T08:04:00Z")
On Fri, Aug 22, 2008 at 10:33:50PM -0700, mike wrote: > Someone on #nginx blogged about this… > [http://letsgetdugg.com/view/Nginx\_hidden\_performance\_option](http://letsgetdugg.com/view/Nginx_hidden_performance_option) > > Wondering what OSes would benefit from this? and at what point would > it help to turn on, or should it be on always, or should it never be > on unless you plan on doing X connections per second? The eventport method is available since 0.4.3: Changes with nginx 0.4.3 26 Sep 2006 ``` *) Feature: the Solaris 10 event ports support. ``` It can be used on modern Solarises only. The similar methods are kqueue (FreeBSD, MacOSX, NetBSD, OpenBSD) and epoll (Linux). However, event ports have (or may be already had) some bugs: one of them leads to panic, another stops accepting connections. This is the reason why on Solaris nginx uses /dev/poll method as the best one. ---
**Author:** ![mike](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/58f4c7/32.png) [@mike](https://www.ruby-forum.com/u/mike)\ **Post date:** [August 27, 2008, 8:12am UTC](https://www.ruby-forum.com/t/eventports/146631/3 "2008-08-27T08:12:22Z")
Ya, I learned that the hard way. Our production nginx server stopped accepting connections after a day of use. I might need to look into improving eventports support on solaris. -Victor Igor S. wrote: > On Fri, Aug 22, 2008 at 10:33:50PM -0700, mike wrote: > > > Someone on #nginx blogged about this… > > [http://letsgetdugg.com/view/Nginx\_hidden\_performance\_option](http://letsgetdugg.com/view/Nginx_hidden_performance_option) > > > > Wondering what OSes would benefit from this? and at what point would > > it help to turn on, or should it be on always, or should it never be > > on unless you plan on doing X connections per second? > > The eventport method is available since 0.4.3: > > Changes with nginx 0.4.3 26 Sep > 2006 > > ``` > *) Feature: the Solaris 10 event ports support. > > ``` > > It can be used on modern Solarises only. The similar methods are > kqueue (FreeBSD, MacOSX, NetBSD, OpenBSD) and epoll (Linux). > > However, event ports have (or may be already had) some bugs: one of them > leads to panic, another stops accepting connections. This is the reason > why on Solaris nginx uses /dev/poll method as the best one. ---
**Author:** ![mike](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/58f4c7/32.png) [@mike](https://www.ruby-forum.com/u/mike)\ **Post date:** [August 27, 2008, 8:33am UTC](https://www.ruby-forum.com/t/eventports/146631/4 "2008-08-27T08:33:20Z")
On Wed, Aug 27, 2008 at 08:12:22AM +0200, Victor I. wrote: > Ya, I learned that the hard way. Our production nginx server stopped > accepting connections after a day of use. I might need to look into > improving eventports support on solaris. On the basis of I saw in debug log this is Solaris bug: nginx always registers an event on listen socket after it has accepted a new connection, but sometime the event is not triggered.