Mercurial > hg > nginx-site

comparison xml/en/docs/events.xml @ 1465:eea7541e7c6a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Removed "rtsig" and "worker_rlimit_sigpending".
author Ruslan Ermilov <ru@nginx.com>
date Thu, 23 Apr 2015 14:33:10 +0300
parents 629630df119a
children 68928f8d31d9
comparison
equal deleted inserted replaced
1464:d5c66374dc02 1465:eea7541e7c6a
6 <!DOCTYPE article SYSTEM "../../../dtd/article.dtd"> 6 <!DOCTYPE article SYSTEM "../../../dtd/article.dtd">
7 7
8 <article name="Connection processing methods" 8 <article name="Connection processing methods"
9 link="/en/docs/events.html" 9 link="/en/docs/events.html"
10 lang="en" 10 lang="en"
11 rev="2"> 11 rev="3">
12 12
13 <section> 13 <section>
14 14
15 <para> 15 <para>
16 nginx supports a variety of connection processing methods. 16 nginx supports a variety of connection processing methods.
64 that add epoll support to 2.4 kernels. 64 that add epoll support to 2.4 kernels.
65 </note> 65 </note>
66 </para> 66 </para>
67 </listitem> 67 </listitem>
68 68
69 <listitem id="rtsig">
70 <para>
71 <literal>rtsig</literal>&mdash;real time signals, efficient method
72 used on Linux 2.2.19+.
73 By default,
74 the system-wide event queue is limited by 1024 signals.
75 On loaded servers it may become necessary to increase this limit
76 by changing the <path>/proc/sys/kernel/rtsig-max</path> kernel parameter.
77 However, in Linux 2.6.6-mm2 this parameter is gone, and each process
78 now has its own event queue.
79 The size of each queue is limited by <literal>RLIMIT_SIGPENDING</literal>
80 and can be changed with
81 <link doc="ngx_core_module.xml" id="worker_rlimit_sigpending"/>.
82 </para>
83
84 <para>
85 On queue overflow, nginx discards the queue and falls back to
86 <literal>poll</literal> connection processing method until
87 the situation gets back to normal.
88 </para>
89 </listitem>
90
91 <listitem id="devpoll"> 69 <listitem id="devpoll">
92 <para> 70 <para>
93 <literal>/dev/poll</literal>&mdash;efficient method used on 71 <literal>/dev/poll</literal>&mdash;efficient method used on
94 Solaris 7 11/99+, HP/UX 11.22+ (eventport), IRIX 6.5.15+, 72 Solaris 7 11/99+, HP/UX 11.22+ (eventport), IRIX 6.5.15+,
95 and Tru64 UNIX 5.1A+. 73 and Tru64 UNIX 5.1A+.