xhprof_sample_enable(3) php man page | unix.com

XHPROF_SAMPLE_ENABLE(3) 						 1						   XHPROF_SAMPLE_ENABLE(3)

xhprof_sample_enable - Start XHProf profiling in sampling mode

SYNOPSIS
       void xhprof_sample_enable (void	)

DESCRIPTION
	Starts	profiling in sample mode, which is a lighter weight version of xhprof_enable(3). The sampling interval is 0.1 seconds, and samples
       record the full function call stack. The main use case is when lower overhead is required when doing performance  monitoring  and  diagnos-
       tics.

PARAMETERS
       This function has no parameters.

RETURN VALUES
       NULL

SEE ALSO 
xhprof_sample_disable(3), xhprof_enable(3), memory_get_usage(3), getrusage(3).
PHP Documentation Group 												   XHPROF_SAMPLE_ENABLE(3)