contrib/systemtap/dp_request.stp - master - githubmirror/sssd

contrib/systemtap/dp_request.stp
85 строк2 KB
Justin Stephenson
CONTRIB: Add DP Request analysis script
08 сен 2017, 17:09
08 сен 2017, 17:091182dd9
/* Start Run with:
 *   stap -v dp_request.stp
 *
 * Then reproduce slow login or id/getent in another terminal.
 * Ctrl-C running stap once login completes.
 *
 * Probe tapsets are in /usr/share/systemtap/tapset/sssd.stp
 */


global num_dp_requests

global time_in_dp_req
global elapsed_time
global dp_req_send_start
global dp_req_send_end

/* Used for tracking slowest request as tz_ctime() only converts seconds, not ms */
global dp_req_send_sec_start
global dp_req_send_sec_end

global slowest_req_name
global slowest_req_target
global slowest_req_method
global slowest_req_time = 0
global slowest_req_start_time
global slowest_req_end_time

function print_report()
{
	printf("\nEnding Systemtap Run - Providing Summary\n")
	printf("Total Number of DP requests: [%d]\n", num_dp_requests)
	printf("Total time in DP requests: [%s]\n", msecs_to_string(time_in_dp_req))
	printf("Slowest request data:\n")
	printf("\tRequest: [%s]\n", slowest_req_name)
	printf("\tTarget:  [%s]\n", dp_target_str(slowest_req_target))
	printf("\tMethod:  [%s]\n", dp_method_str(slowest_req_method))
	printf("\tStart Time: [%s]\n", tz_ctime(slowest_req_start_time))
	printf("\tEnd Time: [%s]\n", tz_ctime(slowest_req_end_time))
	printf("\tDuration: [%s]\n\n", msecs_to_string(slowest_req_time))
}

probe dp_req_send
{
	dp_req_send_start = gettimeofday_ms()
	dp_req_send_sec_start = gettimeofday_s()

	printf("\t--> DP Request [%s] sent for domain [%s]\n", dp_req_name, dp_req_domain)
	printf("\t--> Target: [%s] - Method: [%s]\n", dp_target_str(dp_req_target), dp_method_str(dp_req_method))

	num_dp_requests++
}

probe dp_req_done
{
	dp_req_send_end = gettimeofday_ms()
	dp_req_send_sec_end = gettimeofday_s()
	elapsed_time = (dp_req_send_end - dp_req_send_start)

	printf("\t\t DP Request [%s] finished with return code [%d]: [%s]\n",
	        dp_req_name, dp_ret, dp_errorstr)
	printf("\t\t Elapsed time [%s]\n\n", msecs_to_string(elapsed_time))

	/* Track slowest request information */
	if (elapsed_time > slowest_req_time) {
		slowest_req_time = elapsed_time
		slowest_req_name = dp_req_name
		slowest_req_method = dp_req_method
		slowest_req_target = slowest_req_target
		slowest_req_start_time = dp_req_send_sec_start
		slowest_req_end_time = dp_req_send_sec_end
	}

	time_in_dp_req += (dp_req_send_end - dp_req_send_start)
}

probe begin
{
	printf("\t*** Beginning run! ***\n")
}

probe end
{
    print_report()
}