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Commit 8aa2ed0b authored by Len Brown's avatar Len Brown
Browse files

tools/power turbostat: on SIGINT: sample, print and exit 



When running in interval-mode, catch interrupts
and print a final data record before exiting.

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 3f44a5c6

tools/power/x86/turbostat/turbostat.8

+4 −0
Original line number Original line Diff line number Diff line
@@ -267,6 +267,10 @@ CPU PRF_CTRL 




.fi

.fi





.SH SIGNALS



SIGINT will interrupt interval-mode.

The end-of-interval data will be collected and displayed before turbostat exits.

.SH NOTES

.SH NOTES





.B "turbostat "

.B "turbostat "

tools/power/x86/turbostat/turbostat.c

+30 −0
Original line number Original line Diff line number Diff line
@@ -2600,11 +2600,37 @@ int snapshot_proc_sysfs_files(void) 
	return 0;

	return 0;

}

}





int exit_requested;



static void signal_handler (int signal)

{

	switch (signal) {

	case SIGINT:

		exit_requested = 1;

		if (debug)

			fprintf(stderr, " SIGINT\n");

		break;

	}

}



void setup_signal_handler(void)

{

	struct sigaction sa;



	memset(&sa, 0, sizeof(sa));



	sa.sa_handler = &signal_handler;



	if (sigaction(SIGINT, &sa, NULL) < 0)

		err(1, "sigaction SIGINT");

}

void turbostat_loop()

void turbostat_loop()

{

{

	int retval;

	int retval;

	int restarted = 0;

	int restarted = 0;





	setup_signal_handler();



restart:

restart:

	restarted++;

	restarted++;
@@ -2646,6 +2672,8 @@ void turbostat_loop() 
		compute_average(EVEN_COUNTERS);

		compute_average(EVEN_COUNTERS);

		format_all_counters(EVEN_COUNTERS);

		format_all_counters(EVEN_COUNTERS);

		flush_output_stdout();

		flush_output_stdout();

		if (exit_requested)

			break;

		nanosleep(&interval_ts, NULL);

		nanosleep(&interval_ts, NULL);

		if (snapshot_proc_sysfs_files())

		if (snapshot_proc_sysfs_files())

			goto restart;

			goto restart;
@@ -2665,6 +2693,8 @@ void turbostat_loop() 
		compute_average(ODD_COUNTERS);

		compute_average(ODD_COUNTERS);

		format_all_counters(ODD_COUNTERS);

		format_all_counters(ODD_COUNTERS);

		flush_output_stdout();

		flush_output_stdout();

		if (exit_requested)

			break;

	}

	}

}

}