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Diffstat (limited to 'Examples/php_flow_example.txt')
| -rw-r--r-- | Examples/php_flow_example.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Examples/php_flow_example.txt b/Examples/php_flow_example.txt new file mode 100644 index 0000000..6470daf --- /dev/null +++ b/Examples/php_flow_example.txt @@ -0,0 +1,36 @@ +The following are examples of php_flow.d. + +This is a simple script to trace the flow of PHP functions. +Here it traces the example program, Code/Php/func_abc.php + +# php_flow.d + C TIME(us) FILE -- FUNC + 0 3645535409575 func_abc.php -> func_a + 0 3645535409653 func_abc.php -> sleep + 0 3645536410511 func_abc.php <- sleep + 0 3645536410536 func_abc.php -> func_b + 0 3645536410557 func_abc.php -> sleep + 0 3645537420627 func_abc.php <- sleep + 0 3645537420652 func_abc.php -> func_c + 0 3645537420673 func_abc.php -> sleep + 0 3645538430106 func_abc.php <- sleep + 0 3645538430125 func_abc.php <- func_c + 0 3645538430134 func_abc.php <- func_b + 0 3645538430143 func_abc.php <- func_a +^C + +The fourth column is indented by 2 spaces to show when a new function begins. +This shows which function is calling which - the output above begins by +showing that func_a() began; slept, and returned from sleep; and then called +func_b(). + +The TIME(us) column shows time from boot in microseconds. + +The FILE column shows the file that was being executed. + +If the output looks strange, check the CPU "C" column - if it changes, +then the output is probably shuffled. See Notes/ALLsnoop_notes.txt for +details and suggested workarounds. + +See Notes/ALLflow_notes.txt for important notes about reading flow outputs. + |
