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This commits the performance mods that give the priority processing engine in the pbx, a 25-30% speed boost. The two updates used, are, first, to merge the ast_exists_extension() and the ast_spawn_extension() where they are called sequentially in a loop in the code, into a slightly upgraded version of ast_spawn_extension(), with a few extra args; and, second, I modified the substitute_variables_helper_full, so it zeroes out the byte after the evaluated string instead of demanding you pre-zero the buffer; I also went thru the code and removed the code that zeroed this buffer before every call to the substitute_variables_helper_full. The first fix provides about a 9% speedup, and the second the rest. These figures come from the 'PIPS' benchmark I describe in blogs, conf. reports, etc.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@88166 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Steve Murphy
2007-11-01 22:26:51 +00:00
parent 842b1a34fe
commit 63f2f04cf4
25 changed files with 103 additions and 117 deletions
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3
apps/app_mixmonitor.c
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@@ -220,7 +220,7 @@ static void launch_monitor_thread(struct ast_channel *chan, const char *filename
{
pthread_t thread;
struct mixmonitor *mixmonitor;
char postprocess2[1024] = "";
char postprocess2[1024];
size_t len;
len = sizeof(*mixmonitor) + strlen(chan->name) + strlen(filename) + 2;
@@ -235,7 +235,6 @@ static void launch_monitor_thread(struct ast_channel *chan, const char *filename
*p2 = '$';
}
}
pbx_substitute_variables_helper(chan, p1, postprocess2, sizeof(postprocess2) - 1);
if (!ast_strlen_zero(postprocess2))
len += strlen(postprocess2) + 1;