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authorgnn <gnn@FreeBSD.org>2012-05-12 20:38:18 +0000
committergnn <gnn@FreeBSD.org>2012-05-12 20:38:18 +0000
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parent111c75a23278cd9317f0a13867c22ee0f6c95b26 (diff)
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Add the remaining scripts from the DTraceToolkit, version 0.99, to the
vendor tree. http://www.brendangregg.com/dtrace.html#DTraceToolkit
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+The following are examples of php_syscalls.d.
+
+This is a simple script to count executed PHP functions and system calls.
+Here it traces an example program, Code/Php/func_abc.php
+
+# php_syscalls.d
+Tracing... Hit Ctrl-C to end.
+^C
+ PID FILE TYPE NAME COUNT
+ 18419 func_abc.php func func_a 1
+ 18419 func_abc.php func func_b 1
+ 18419 func_abc.php func func_c 1
+ 18419 func_abc.php func sleep 3
+ 18419 httpd syscall nanosleep 3
+
+While tracing, four functions were called - func_a(), func_b(), func_c(), and
+sleep. There were also three instances of the system call nanosleep().
+
+This script can provide an insight to how a PHP application is interacting
+with the system, by providing both application function calls and system calls
+in the same output.
+
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