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Thanks to pnlarsson for noting the spelling error in the cli commands. Also, added some verbage about the new algorithm to CHANGES.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89583 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Steve Murphy
2007-11-26 16:24:27 +00:00
parent 72a8e08bf5
commit 2ec4b57622
3 changed files with 30 additions and 7 deletions
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10
CHANGES
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@@ -55,6 +55,7 @@ CLI Changes
* Ability to set process limits ("ulimit") without restarting Asterisk
* Enhanced "agi debug" to print the channel name as a prefix to the debug
output to make debugging on busy systems much easier.
* New CLI commands "dialplan set extenpatternmatching true/false"
SIP changes
-----------
@@ -345,3 +346,12 @@ Miscellaneous
* Added a new channel driver, chan_unistim. See doc/unistim.txt and
configs/unistim.conf.sample for details. This new channel driver allows
you to use Nortel i2002, i2004, and i2050 phones with Asterisk.
* A new extension pattern matching algorithm, based on a trie, is introduced
here, that could noticeably speed up mid-sized to large dialplans.
It is NOT used by default, as duplicating the behaviour of the old pattern
matcher is still under development. A config file option, in extensions.conf,
in the [general] section, called "extenpatternmatchingnew", is by default
set to false; setting that to true will force the use of the new algorithm.
Also, the cli commands "dialplan set extenpatternmatchingnew true/false" can
be used to switch the algorithms at run time.

23
configs/extensions.conf.sample
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@@ -36,20 +36,33 @@ writeprotect=no
;
;autofallthrough=no
;
; By default, the old pattern matcher is used.
;
;
; If extenpatternmatchnew is set (true, yes, etc), then a new algorithm that uses
; a Trie to find the best matching pattern is used. In dialplans
; with more than about 20-40 extensions in a single context, this
; new algorithm can provide a noticeable speedup.
; With 50 extensions, the speedup is 1.32x
; with 88 extensions, the speedup is 2.23x
; with 138 extensions, the speedup is 3.44x
; with 238 extensions, the speedup is 5.8x
; with 438 extensions, the speedup is 10.4x
; With 1000 extensions, the speedup is ~25x
; with 10,000 extensions, the speedup is 374x
; Basically, the new algorithm provides a fairly flat response
; Basically, the new algorithm provides a flat response
; time, no matter the number of extensions.
;
; By default, the old pattern matcher is used.
;
; ****This is a new feature! *********************
; The new pattern matcher is for the brave, the bold, and
; the desperate. If you have large dialplans, and/or high
; call volume, you might consider setting this value to "yes" !!
; the desperate. If you have large dialplans (more than about 50 extensions
; in a context), and/or high call volume, you might consider setting
; this value to "yes" !!
; Please, if you try this out, and are forced to return to the
; old pattern matcher, please report your reasons in a bug report
; on bugs.digium.com. We have made good progress in providing something
; compatible with the old matcher; help us finish the job!
;
; This value can be switched at runtime using the cli command "dialplan set extenpatternmatchnew true"
; or "dialplan set extenpatternmatchnew false", so you can experiment to your hearts content.

4
main/pbx.c
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@@ -4850,7 +4850,7 @@ static char *handle_set_extenpatternmatchnew(struct ast_cli_entry *e, int cmd, s
switch (cmd) {
case CLI_INIT:
e->command = "dialplan set extenpaternmatchnew true";
e->command = "dialplan set extenpatternmatchnew true";
e->usage =
"Usage: dialplan set extenpatternmatchnew true|false\n"
" Use the NEW extension pattern matching algorithm, true or false.\n";
@@ -4878,7 +4878,7 @@ static char *handle_unset_extenpatternmatchnew(struct ast_cli_entry *e, int cmd,
switch (cmd) {
case CLI_INIT:
e->command = "dialplan set extenpaternmatchnew false";
e->command = "dialplan set extenpatternmatchnew false";
e->usage =
"Usage: dialplan set extenpatternmatchnew true|false\n"
" Use the NEW extension pattern matching algorithm, true or false.\n";