Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 436224a6 authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar
Browse files

perf report: Separate out idle threads 



Introduce the special comm name [idle] for idle theads.

Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent c70975bc

Documentation/perf_counter/builtin-report.c

+13 −0
Original line number Diff line number Diff line
@@ -612,6 +612,17 @@ static size_t output__fprintf(FILE *fp, uint64_t total_samples) 
	return ret;

}



static void register_idle_thread(void)

{

	struct thread *thread = threads__findnew(0);



	if (thread == NULL ||

			thread__set_comm(thread, "[idle]")) {

		fprintf(stderr, "problem inserting idle task.\n");

		exit(-1);

	}

}





static int __cmd_report(void)

{
@@ -626,6 +637,8 @@ static int __cmd_report(void) 
	char cwd[PATH_MAX], *cwdp = cwd;

	int cwdlen;



	register_idle_thread();



	input = open(input_name, O_RDONLY);

	if (input < 0) {

		perror("failed to open file");